33 results on '"Tibuakuu, M"'
Search Results
2. GlycA, a novel inflammatory marker, is associated with subclinical coronary disease in the multicenter AIDS cohort study
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Tibuakuu, M, Fashanu, OE, Zhao, D, Otvos, JD, Brown, TT, Haberlen, SA, Guallar, E, Budoff, MJ, Palella, FJ, Martinson, JJ, Akinkuolie, AO, Mora, S, Post, WS, and Michos, ED
- Abstract
OBJECTIVE:GlycA, a novel NMR biomarker of inflammation, has been associated with incident cardiovascular disease (CVD) in the general population, but its association with CVD among HIV-infected individuals is unknown. We examined the associations between GlycA and subclinical coronary plaque among HIV-infected and HIV-uninfected men participating in MACS. DESIGN:Cross-sectional analysis of 935 men with plasma measurement of GlycA and noncontrast cardiac computed tomography (CT) and/or coronary CT angiography. METHODS:We used multivariable Poisson and linear regression to assess associations of GlycA with prevalent coronary atherosclerosis and plaque extent, respectively. RESULTS:Mean ± SD age was 54 ± 7 years; 31% were black; 63% HIV-infected. GlycA levels were higher in HIV-infected compared with HIV-uninfected men (397 ± 68 vs. 380 ± 60 μmol/l, P = 0.0001), and higher for men with detectable viral load vs. undetectable (413 ± 79 vs. 393 ± 65 μmol/l, P = 0.004). After adjusting for HIV serostatus, demographic and CVD risk factors, every 1SD increment in GlycA level was associated with a higher prevalence of coronary artery calcium (CAC >0) [prevalence ratio 1.09 (95% CI 1.03-1.15)] and coronary stenosis at least 50% [1.20 (1.02-1.41)]. These associations did not significantly differ after adjusting for traditional inflammatory biomarkers or by HIV serostatus. Among men with plaque, GlycA was positively associated with the extent of CAC and total plaque. CONCLUSION:HIV infection was associated with higher GlycA levels. In both HIV-infected and HIV-uninfected individuals, GlycA was significantly associated with several measures of subclinical coronary atherosclerosis, independent of other CVD risk factors and inflammatory biomarkers. These findings suggest the potential role of GlycA in CVD risk stratification among HIV patients.
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- 2018
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3. Association Between Omega-3 Fatty Acid Levels and Aortic Valve Calcium (from the Multi-Ethnic Study of Atherosclerosis).
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Pisaniello AD, Alfaddagh A, Tibuakuu M, Whelton SP, Czarny MJ, Blaha MJ, Tsai MY, Budoff MJ, Shea S, Allison MA, and Post WS
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- Male, Humans, Middle Aged, Aged, Female, Aortic Valve diagnostic imaging, Calcium, Prospective Studies, Risk Factors, Inflammation, Fatty Acids, Omega-3, Aortic Valve Stenosis, Atherosclerosis
- Abstract
Calcific aortic valve disease, a condition of chronic inflammation, is associated with increased cardiovascular events and all-cause mortality. Omega-3 fatty acids (O3FAs) reduce both acute and chronic inflammation, but their associations with aortic valve calcium (AVC) have not been studied. The Multi-Ethnic Study of Atherosclerosis is a prospective cohort study of 6,814 adults without clinical cardiovascular disease. Plasma fatty acid levels and cardiac computed tomography (CT) scans were performed at baseline, and CT scans were performed at subsequent clinical visits over a median 9-year period. We assessed whether plasma levels of O3FAs and their species correlate with the presence, severity, and progression of AVC measured by CT in Multi-Ethnic Study of Atherosclerosis. The mean age of the 6,510 included participants with baseline fatty acid levels, AVC, and covariate data was 62.1 ± 10.2 years, and 47.1% of the participants were male. Race distribution was 38.6% White, 27.2% Black, 22.1% Hispanic/Latino, and 12.1% Chinese. Among the 6,510 participants, 5,884 had a subsequent CT scan, and 3,304 had a third CT scan with AVC measurements. At baseline, 862 participants (13.2%) had prevalent AVC (Agatston score >0), and were more likely to be of older age, male, of the White race, have a lower education level, and have co-morbidities that are associated with a higher risk for AVC. Plasma tertiles of eicosapentaenoic acid, docosahexaenoic acid, and total O3FA were not associated with prevalent AVC at baseline, incident AVC, or change in AVC. In conclusion, plasma levels of O3FAs in subjects not routinely supplemented with O3FAs are not useful for predicting the presence or development of AVC. Whether high plasma O3FA levels, achievable by high-dose O3FA over-the-counter supplementation or pharmacotherapy, is associated with AVC requires further investigation., (Copyright © 2022 Elsevier Inc. All rights reserved.)
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- 2022
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4. Hypertensive Diseases in Pregnancy and Kidney Function Later in Life: The Genetic Epidemiology Network of Arteriopathy (GENOA) Study.
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Oshunbade AA, Lirette ST, Windham BG, Shafi T, Hamid A, Gbadamosi SO, Tin A, Yimer WK, Tibuakuu M, Clark D 3rd, Kamimura D, Lutz EA, Mentz RJ, Fox ER, Butler J, Butler KR, Garovic VD, Turner ST, Mosley TH Jr, and Hall ME
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- Aged, Causality, Cross-Sectional Studies, Female, Glomerular Filtration Rate, Humans, Middle Aged, Pregnancy, Risk Assessment, Surveys and Questionnaires, Hypertension, Pregnancy-Induced epidemiology, Renal Insufficiency, Chronic epidemiology
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Objective: To evaluate the relationship between hypertensive diseases in pregnancy and kidney function later in life., Methods: We evaluated measured glomerular filtration rate (mGFR) using iothalamate urinary clearance in 725 women of the Genetic Epidemiology Network of Arteriopathy (GENOA) study. Women were classified by self-report as nulliparous (n=62), a history of normotensive pregnancies (n=544), a history of hypertensive pregnancies (n=102), or a history of pre-eclampsia (n=17). We compared adjusted associations among these four groups with mGFR using generalized estimating equations to account for familial clustering. Chronic kidney disease (CKD) was defined as mGFR of less than 60 mL/min per 1.73 m
2 or urinary albumin-creatinine ratio (UACR) greater than or equal to 30 mg/g., Results: Among women with kidney function measurements (mean age, 59±9 years, 52.9% African American), those with a history of hypertensive pregnancy had lower mGFR (-4.66 ml/min per 1.73 m2 ; 95% CI, -9.12 to -0.20) compared with women with a history of normotensive pregnancies. Compared with women with a history of normotensive pregnancies, women with a history of hypertensive pregnancy also had higher odds of mGFR less than 60 ml/min per 1.73 m2 (odds ratio, 2.09; 95% CI, 1.21 to 3.60). Additionally, women with a history of hypertensive pregnancy had greater odds for chronic kidney disease (odds ratio, 4.89; 95% CI, 1.55 to 15.44), after adjusting for age, race, education, smoking history, hypertension, body mass index, and diabetes., Conclusion: A history of hypertension in pregnancy is an important prognostic risk factor for kidney disease. To our knowledge, this is the first and largest investigation showing the association between hypertensive diseases in pregnancy and subsequent kidney disease using mGFR in a large biracial cohort., (Copyright © 2021. Published by Elsevier Inc.)- Published
- 2022
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5. Cardiovascular Disease in Patients with Diabetes: A Comparison of Professional Society Guidelines.
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Salazar IMC, Tibuakuu M, Blumenthal RS, and Sarkar S
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- Endocrinologists, Humans, United States epidemiology, Cardiovascular Diseases epidemiology, Cardiovascular Diseases etiology, Diabetes Mellitus epidemiology, Dyslipidemias complications, Dyslipidemias drug therapy, Dyslipidemias epidemiology, Endocrinology
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In this review, we compare major points given in the 2021 American Diabetes Association and the 2020 American Association of Clinical Endocrinologists/American College of Endocrinology guidelines, in particular, the assessment and management of cardiovascular risk in patients with diabetes with a focus on dyslipidemia, blood pressure, and pharmacotherapy in diabetes., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
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- 2022
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6. Income disparity and utilization of cardiovascular preventive care services among U.S. adults.
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Shahu A, Okunrintemi V, Tibuakuu M, Khan SU, Gulati M, Marvel F, Blumenthal RS, and Michos ED
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Objective: : Associations between income disparity and utilization of cardiovascular disease (CVD) preventive care services, such as receipt of lifestyle advice and screening for CVD risk factors in populations with and without CVD, are not well understood. The purpose of this study was to evaluate associations between income and utilization of CVD-preventive services among U.S. adults., Methods: : We included adults ≥18 years with and without CVD from the 2006 to 2015 Medical Expenditure Panel Survey. We categorized participants as high-income (>400% of federal poverty level [FPL]), middle income (200-400% of FPL), low-income (125-200% of FPL) and very low (VL)-income (<125% of FPL). We used logistic regression to compare the likelihood of receiving CVD-preventive services by income strata, adjusting for sociodemographic factors and comorbidities., Results: : The study included 185,081 participants (representing 194.6 million U.S. adults) without CVD, and 32,862 participants (representing 37 million U.S. adults) with CVD. VL-income adults without CVD were less likely than high-income adults to have blood pressure measured within past 2 years [odds ratio [OR] 0.41 (95% confidence interval [CI] 0.37-0.45)] or cholesterol levels checked within past 5 years [0.36 (0.33-0.38)] or receive counseling about diet modifications [0.77 (0.74-0.81)], exercise [0.81 (0.77-0.85)], or smoking cessation [0.71 (0.63-0.79)] within past year. VL-income adults with CVD were also less likely to have blood pressure [0.32 (0.22-0.46)] or cholesterol [0.33 (0.26-0.42)] checked and receive counseling about exercise [0.84 (0.76-0.93)] or smoking cessation [0.78 (0.61-0.99)]. Additional subgroup analyses restricted to participants who had seen a healthcare provider within the preceding 12 months, as well as secondary analyses stratified by sex, race and ethnicity, showed similar disparities between high-income and VL-income participants., Conclusions: : VL-income adults were less likely to be screened for CVD risk factors or receive CVD-prevention counseling than high-income adults, regardless of CVD status. More work must be done to reduce disparities in access to and utilization of CVD-preventive services among adults in different income groups., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2021 The Author(s).)
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- 2021
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7. Greater Acculturation is Associated With Poorer Cardiovascular Health in the Multi-Ethnic Study of Atherosclerosis.
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Osibogun O, Ogunmoroti O, Mathews L, Okunrintemi V, Tibuakuu M, and Michos ED
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- Aged, Aged, 80 and over, Atherosclerosis psychology, Cardiovascular Diseases ethnology, Cardiovascular Diseases psychology, Humans, Middle Aged, Morbidity trends, Risk Factors, United States epidemiology, Acculturation, Atherosclerosis ethnology, Ethnicity, Health Status
- Abstract
Background Greater acculturation is associated with increased risk of cardiovascular disease. However, little is known about the association between acculturation and ideal cardiovascular health (CVH) as measured by the American Heart Association's 7 CVH metrics. We investigated the association between acculturation and ideal CVH among a multi-ethnic cohort of US adults free of clinical cardiovascular disease at baseline. Methods and Results This was a cross-sectional analysis of 6506 men and women aged 45 to 84 years of 4 races/ethnicities. We examined measures of acculturation(birthplace, language spoken at home, and years lived in the United States [foreign-born participants]) by CVH score. Scores of 0 to 8 indicate inadequate, 9 to 10 average and 11 to 14 optimal CVH. We used multivariable regression to examine associations between acculturation and CVH, adjusting for age, sex, race/ethnicity, education, income and health insurance. The mean (SD) age was 62 (10) years, 53% were women, 39% non-Hispanic White-, 26% non-Hispanic Black-, 12% Chinese- and 22% Hispanic-Americans. US-born participants had lower odds of optimal CVH (odds ratio [OR]: 0.63 [0.50-0.79], P <0.001) compared with foreign-born participants. Participants who spoke Chinese and other foreign languages at home had greater odds of optimal CVH compared with those who spoke English (1.91 [1.08-3.36], P =0.03; and 1.65 [1.04-2.63], P =0.03, respectively). Foreign-born participants who lived the longest in the United States had lower odds of optimal CVH (0.62 [0.43-0.91], P =0.02). Conclusions Greater US acculturation was associated with poorer CVH. This finding suggests that the promotion of ideal CVH should be encouraged among immigrant populations since more years lived in the United States was associated with poorer CVH.
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- 2021
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8. The association of novel inflammatory marker GlycA and incident atrial fibrillation in the Multi-Ethnic Study of Atherosclerosis (MESA).
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Jang S, Ogunmoroti O, Zhao D, Fashanu OE, Tibuakuu M, Benson EM, Norby F, Otvos JD, Heckbert SR, Szklo M, and Michos ED
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- Aged, Aged, 80 and over, Biomarkers blood, Cohort Studies, Ethnicity, Female, Glycosylation, Humans, Incidence, Male, Middle Aged, Risk Factors, Atherosclerosis epidemiology, Atherosclerosis metabolism, Atrial Fibrillation epidemiology, Atrial Fibrillation metabolism, Inflammation epidemiology, Inflammation metabolism
- Abstract
Background: Emerging evidence has implicated that inflammation contributes to the pathogenesis of atrial fibrillation (AF). GlycA is a novel marker of systemic inflammation with low intra-individual variability and high analytic precision. GlycA has been associated with incident cardiovascular disease (CVD) independent of other inflammatory markers. However, whether GlycA is associated with AF, specifically, has yet to be established. We examined the association between GlycA and AF in a multi-ethnic cohort., Methods: We studied 6,602 MESA participants aged 45-85, with no clinical CVD at baseline, with data on GlycA and incident AF. We used multivariable-adjusted Cox models to evaluate the association between GlycA and incident AF. We also examined other inflammatory markers [high-sensitivity C-reactive protein (hsCRP), interleukin-6 (IL6) and fibrinogen] and incident AF for comparison., Results: The mean (SD) age was 62 (10) years, 53% women. The mean plasma GlycA was 381 (62) μmol/L. Over median follow-up of 12.9 years, 869 participants experienced AF. There was no statistically significant association between GlycA and incident AF after adjusting for sociodemographics, CVD risk factors, and other inflammatory markers [Hazard Ratio (95% CI) per 1 SD increment in GlycA: 0.97 (0.88-1.06)]. Neither hsCRP nor fibrinogen was associated with incident AF in same model. In contrast, IL-6 was independently associated with incident AF [HR 1.12 per 1 SD increment (1.05-1.19)]., Conclusions: Although GlycA has been associated with other CVD types, we found that GlycA was not associated with AF. More research will be required to understand why IL-6 was associated with AF but not GlycA., Clinical Trial Registration: MESA is not a clinical trial. However, the cohort is registered at: URL: https://clinicaltrials.gov/ct2/show/NCT00005487 Unique identifier: NCT00005487., Competing Interests: The authors have read the journal’s policy and have the following competing interests: JDO is a paid employee of Laboratory Corporation of America Holdings (LabCorp). There are no patents, products in development or marketed products associated with this research to declare. This does not alter our adherence to PLOS ONE policies on sharing data and materials.
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- 2021
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9. Sex Differences in the Age of Diagnosis for Cardiovascular Disease and Its Risk Factors Among US Adults: Trends From 2008 to 2017, the Medical Expenditure Panel Survey.
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Okunrintemi V, Tibuakuu M, Virani SS, Sperling LS, Volgman AS, Gulati M, Cho L, Leucker TM, Blumenthal RS, and Michos ED
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- Adult, Age Factors, Aged, Aged, 80 and over, Attitude to Health, Cardiovascular Diseases epidemiology, Coronary Disease epidemiology, Female, Heart Disease Risk Factors, Humans, Hypercholesterolemia epidemiology, Hypertension epidemiology, Incidence, Male, Middle Aged, Risk Factors, Sex Characteristics, Stroke epidemiology, Surveys and Questionnaires, United States epidemiology, Cardiovascular Diseases diagnosis, Cardiovascular Diseases prevention & control, Health Expenditures trends
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Background Sex differences in the trends for control of cardiovascular disease (CVD) risk factors have been described, but temporal trends in the age at which CVD and its risk factors are diagnosed and sex-specific differences in these trends are unknown. Methods and Results We used the Medical Expenditure Panel Survey 2008 to 2017, a nationally representative sample of the US population. Individuals ≥18 years, with a diagnosis of hypercholesterolemia, hypertension, coronary heart disease, or stroke, and who reported the age when these conditions were diagnosed, were included. We included 100 709 participants (50.2% women), representing 91.9 million US adults with above conditions. For coronary heart disease and hypercholesterolemia, mean age at diagnosis was 1.06 and 0.92 years older for women, compared with men, respectively (both P <0.001). For stroke, mean age at diagnosis for women was 1.20 years younger than men ( P <0.001). The mean age at diagnosis of CVD risk factors became younger over time, with steeper declines among women (annual decrease, hypercholesterolemia [women, 0.31 years; men 0.24 years] and hypertension [women, 0.23 years; men, 0.20 years]; P <0.001). Coronary heart disease was not statistically significant. For stroke, while age at diagnosis decreased by 0.19 years annually for women ( P =0.03), it increased by 0.22 years for men ( P =0.02). Conclusions The trend in decreasing age at diagnosis for CVD and its risk factors in the United States appears to be more pronounced among women. While earlier identification of CVD risk factors may provide opportunity to initiate preventive treatment, younger age at diagnosis of CVD highlights the need for the prevention of CVD earlier in life, and sex-specific interventions may be needed.
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- 2020
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10. Nondietary Cardiovascular Health Metrics With Patient Experience and Loss of Productivity Among US Adults Without Cardiovascular Disease: The Medical Expenditure Panel Survey 2006 to 2015.
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Tibuakuu M, Okunrintemi V, Savji N, Stone NJ, Virani SS, Blankstein R, Thamman R, Blumenthal RS, and Michos ED
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- Female, Health Surveys, Heart Disease Risk Factors, Humans, Male, Middle Aged, Patient Reported Outcome Measures, Quality Indicators, Health Care, Self Concept, United States epidemiology, Diagnostic Self Evaluation, Health Expenditures statistics & numerical data, Quality of Life
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Background The American Heart Association 2020 Impact Goals aimed to promote population health through emphasis on cardiovascular health (CVH). We examined the association between nondietary CVH metrics and patient-reported outcomes among a nationally representative sample of US adults without cardiovascular disease. Methods and Results We included adults aged ≥18 years who participated in the Medical Expenditure Panel Survey between 2006 and 2015. CVH metrics were scored 1 point for each of the following: not smoking, being physically active, normal body mass index, no hypertension, no diabetes mellitus, and no dyslipidemia, or 0 points if otherwise. Diet was not assessed in Medical Expenditure Panel Survey. Patient-reported outcomes were obtained by telephone survey and included questions pertaining to patient experience and health-related quality of life. Regression models were used to compare patient-reported outcomes based on CVH, adjusting for sociodemographic factors and comorbidities. There were 177 421 Medical Expenditure Panel Survey participants (mean age, 45 [17] years) representing ~187 million US adults without cardiovascular disease. About 12% (~21 million US adults) had poor CVH. Compared with individuals with optimal CVH, those with poor CVH had higher odds of reporting poor patient-provider communication (odds ratio, 1.14; 95% CI, 1.05-1.24), poor healthcare satisfaction (odds ratio, 1.15; 95% CI, 1.08-1.22), poor perception of health (odds ratio, 5.89; 95% CI, 5.35-6.49), at least 2 disability days off work (odds ratio, 1.39; 95% CI, 1.30-1.48), and lower health-related quality of life scores. Conclusions Among US adults without cardiovascular disease, meeting a lower number of ideal CVH metrics is associated with poor patient-reported healthcare experience, poor perception of health, and lower health-related quality of life. Preventive measures aimed at optimizing ideal CVH metrics may improve patient-reported outcomes among this population.
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- 2020
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11. Elevated liver stiffness without histological evidence of liver fibrosis in rural Ugandans.
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Tibuakuu M, Jjingo C, Kirk GD, Thomas DL, Gray R, Ssempijja V, Nalugoda F, Serwadda D, Ocama P, Opio CK, Kleiner DE, Quinn TC, and Reynolds SJ
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- Biopsy, Female, Humans, Liver diagnostic imaging, Liver pathology, Liver Cirrhosis epidemiology, Liver Cirrhosis pathology, Uganda, Elasticity Imaging Techniques
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Liver fibrosis may be assessed noninvasively with transient electrography (TE). Data on the performance of TE for detecting liver fibrosis in sub-Saharan Africa are limited. We evaluated the diagnostic accuracy of TE by performing liver biopsies on persons with liver fibrosis indicated by TE. We enrolled HIV-infected and HIV-uninfected participants with TE scores consistent with at least minimal disease (liver stiffness measurement [LSM]≥7.1 kPa). Biopsies were performed and staged using the Ishak scoring system. A concordant result was defined using accepted thresholds for significant fibrosis by TE (LSM ≥ 9.3 kPa) and liver biopsy (Ishak score ≥ 2). We used modified Poisson regression methods to quantify the univariate and adjusted prevalence risk ratios (PRR) of the association between covariates and the concordance status of TE and liver biopsy in defining the presence of liver fibrosis. Of 131 participants with valid liver biopsy and TE data, only 5 participants (3.8%) had Ishak score ≥ 2 of whom 4 had LSM ≥ 9.3 kPa (sensitivity = 80%); of the 126 (96.2%) with Ishak score < 2, 76 had LSM < 9.3 kPa (specificity = 61%). In multivariable analysis, discordance was associated with female gender (adjPRR = 1.80, 95%CI 1.1-2.9; P = .019), herbal medicine use (adjPRR 1.64, 95% CI = 1.0-2.5; P = .022), exposure to lake or river water (adjPRR 2.05, 95% CI = 1.1-3.7; P = .016), and current smoking (adjPRR 1.72, 95%CI 1.0-2.9; P = .045). These data suggest that TE among rural Ugandans has low specificity for detection of histologically confirmed liver fibrosis. Caution should be exercised when using this tool to confirm significant liver fibrosis., (© 2020 John Wiley & Sons Ltd. This article has been contributed to by US Government employees and their work is in the public domain in the USA.)
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- 2020
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12. Age-specific differences in patient reported outcomes among adults with atherosclerotic cardiovascular disease: Medical expenditure panel survey 2006-2015.
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Okunrintemi V, Benson EA, Derbal O, Miedema MD, Blumenthal RS, Tibuakuu M, Ogunmoroti O, Khan SU, Mamas MA, Gulati M, and Michos ED
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Objective: The prevalence of atherosclerotic cardiovascular disease (ASCVD) in younger adults has increased over the past decade. However, it is less well established whether patient reported outcomes differ between younger and older adults with ASCVD. We sought to evaluate age-specific differences in patient reported outcomes among adults with ASCVD., Methods: This was a retrospective cross-sectional survey study. We used data from the 2006-2015 Medical Expenditure Panel Survey (MEPS), a nationally representative sample of the United States population. Adults ≥18 years with a diagnosis of ASCVD, ascertained by ICD9 codes or self-reported data, were included. Logistic regression was used to compare self-reported patient-clinician communication, patient satisfaction, perception of health, emergency department (ED) visits, and use of preventive medications (aspirin and statins) by age category [Young: 18-44, Middle: 45-64, Older: ≥65 years]. We used two-part econometric modeling to evaluate age-specific annual healthcare expenditure., Results: There were 21,353 participants included. Over 9000 (42.6%-weighted) of the participants were young or middle aged, representing ~9.9 million adults aged <65 years with ASCVD nationwide. Compared with older adults, middle-aged and young adults with ASCVD were more likely to report poor patient-clinician communication [OR 1.73 (95% CI 1.28-2.33) and 2.49 (1.76-3.51), respectively], poor healthcare satisfaction, and poor perception of health status, have increased ED utilization and were also less likely to be using aspirin and statins. The mean annual healthcare expenditure was highest among middle-aged adults [$10,798 (95% CI, $10,012 to $11,583)]., Conclusion: Compared with older adults, younger adults with ASCVD were more likely to report poor patient experience and poor health status and less likely to be using preventive medications. More effort needs to be geared towards understanding the age-specific differences in healthcare quality and delivery to improve outcomes among high-risk young adults with ASCVD., (© 2020 The Authors.)
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- 2020
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13. Association of the Novel Inflammatory Marker GlycA and Incident Heart Failure and Its Subtypes of Preserved and Reduced Ejection Fraction: The Multi-Ethnic Study of Atherosclerosis.
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Jang S, Ogunmoroti O, Ndumele CE, Zhao D, Rao VN, Fashanu OE, Tibuakuu M, Otvos JD, Benson EM, Ouyang P, and Michos ED
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- Aged, Aged, 80 and over, Atherosclerosis blood, Atherosclerosis ethnology, Biomarkers blood, Ethnicity, Female, Glycosylation, Humans, Incidence, Inflammation ethnology, Male, Middle Aged, Risk Assessment, Risk Factors, Stroke Volume, Acute-Phase Proteins metabolism, Heart Failure blood, Heart Failure ethnology, Inflammation blood
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Background: GlycA, a nuclear magnetic resonance composite marker of systemic inflammation, reflects serum concentration and glycosylation state of main acute phase reactants. Prior studies have shown plasma GlycA levels were associated with cardiovascular disease even after adjusting for other inflammatory markers. However, little is known about the association of GlycA with the heart failure (HF) subtypes: heart failure with preserved ejection fraction (HFpEF) or heart failure with reduced ejection fraction. We examined the association of GlycA with incident HF and its subtypes in a multiethnic cohort., Methods: We studied 6507 Multi-Ethnic Study of Atherosclerosis participants aged 45 to 84 without baseline cardiovascular disease or HF who had data on GlycA and incident hospitalized HF. We used multivariable-adjusted Cox hazards models to evaluate the association of GlycA with incident total HF, HFpEF, and heart failure with reduced ejection fraction. Models were adjusted for sociodemographics, cardiovascular disease risk factors, and inflammatory biomarkers., Results: The mean (SD) for age was 62 (10) years and for GlycA was 375 (82) μmol/L; 53% women. Over a median follow-up of 14.0 years, participants in the highest quartile of GlycA, compared with the lowest, experienced increased risk of developing any HF (hazard ratio, 1.48 [95% CI, 1.01-2.18]) in fully adjusted models. However, this increased risk was only seen for HFpEF (2.18 [1.15-4.13]) and not heart failure with reduced ejection fraction [1.06 (0.63-1.79)]. There was no significant interaction by sex, age, or race/ethnicity., Conclusions: GlycA was associated with an increased risk of any HF, and in particular, HFpEF. Future studies should examine mechanisms that might explain differential association of GlycA with HF subtypes, and whether therapeutic lowering of GlycA can prevent HFpEF development. Registration: URL: https://www.clinicaltrials.gov; Unique identifier: NCT00005487.
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- 2020
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14. Sex differences in the association between ideal cardiovascular health and biomarkers of cardiovascular disease among adults in the United States: a cross-sectional analysis from the multiethnic study of atherosclerosis.
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Osibogun O, Ogunmoroti O, Tibuakuu M, Benson EM, and Michos ED
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- Aged, Aged, 80 and over, Cross-Sectional Studies, Female, Humans, Male, Middle Aged, Risk Factors, Sex Factors, United States epidemiology, Biomarkers blood, Cardiovascular Diseases blood, Cardiovascular Diseases ethnology
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Objectives: This study investigated the sex differences in the associations between ideal cardiovascular health (CVH), measured by the American Heart Association's Life's Simple 7 metrics, and cardiovascular disease (CVD)-related biomarkers among an ethnically diverse cohort of women and men free of clinical CVD at baseline., Setting: We analysed data from the Multi-Ethnic Study of Atherosclerosis conducted in six centres across the USA (Baltimore, Maryland; Chicago, Illinois; Forsyth County, North Carolina; Los Angeles, California; New York, New York; and St Paul, Minnesota)., Participants: This is a cross-sectional study of 5379 women and men, aged 45-84 years old. Mean age (SD) was 62 (10), 52% were women, 38% White, 11% Chinese American, 28% Black and 23% Hispanic., Primary Measures: The seven metrics (smoking, body mass index, physical activity, diet, total cholesterol, blood pressure and blood glucose) were each scored as 0 points (poor), 1 point (intermediate) or 2 points (ideal). The total CVH score ranged from 0 to 14. The CVD-related biomarkers studied were high-sensitivity C-reactive protein, D-dimer, fibrinogen, homocysteine, high-sensitivity cardiac troponin T, N-terminal pro B-type natriuretic peptide (NT-proBNP) and interleukin 6. We examined the association between the CVH score and each biomarker using multivariable linear regression, adjusting for age, race/ethnicity, education, income and health insurance status., Results: Higher CVH scores were associated with lower concentrations of all biomarkers, except for NT-proBNP where we found a direct association. There were statistically significant interactions by sex for all biomarkers (p<0.001), but results were qualitatively similar between women and men., Conclusion: A more favourable CVH score was associated with lower levels of multiple CVD-related biomarkers for women and men, except for NT-proBNP. These data suggest that promotion of ideal CVH would have similarly favourable impact on the reduction of biomarkers of CVD risk for both women and men., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2019
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15. Association of Depression Risk with Patient Experience, Healthcare Expenditure, and Health Resource Utilization Among Adults with Atherosclerotic Cardiovascular Disease.
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Okunrintemi V, Valero-Elizondo J, Michos ED, Salami JA, Ogunmoroti O, Osondu C, Tibuakuu M, Benson EM, Pawlik TM, Blaha MJ, and Nasir K
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- Adult, Aged, Case-Control Studies, Depression diagnosis, Depression economics, Female, Humans, Male, Middle Aged, Patient Reported Outcome Measures, Quality of Life, Retrospective Studies, Surveys and Questionnaires, United States epidemiology, Young Adult, Atherosclerosis epidemiology, Depression epidemiology, Health Expenditures statistics & numerical data, Risk Assessment
- Abstract
Background: Approximately 20% of patients with atherosclerotic cardiovascular disease (ASCVD) suffer from depression., Objective: To compare healthcare expenditures and utilization, healthcare-related quality of life, and patient-centered outcomes among ASCVD patients, based on their risk for depression (among those without depression), and those with depression (vs. risk-stratified non-depressed)., Design and Setting: The 2004-2015 Medical Expenditure Panel Survey (MEPS) was used for this study., Participants: Adults ≥ 18 years with a diagnosis of ASCVD, ascertained by ICD-9 codes and/or self-reported data. Individuals with a diagnosis of depression were identified by ICD-9 code 311. Participants were stratified by depression risk, based on the Patient Health Questionnaire-2., Results: A total of 19,840 participants were included, translating into 18.3 million US adults, of which 8.6% (≈ 1.3 million US adults) had a high risk for depression and 18% had a clinical diagnosis of depression. Among ASCVD patients without depression, those with a high risk (compared with low risk) had increased overall and out-of-pocket expenditures (marginal differences of $2880 and $287, respectively, both p < 0.001), higher odds for resource utilization, and worse patient experience and healthcare quality of life (HQoL). Furthermore, compared with individuals who had depression, participants at high risk also reported worse HQoL and had higher odds of poor perception of their health status (OR 1.83, 95% CI [1.50, 2.23]) and poor patient-provider communication (OR 1.29 [1.18, 1.42])., Limitation: The sample population includes self-reported diagnosis of ASCVD; therefore, the risk of underestimation of the cohort size cannot be ruled out., Conclusion: Almost 1 in 10 individuals with ASCVD without diagnosis of depression is at high risk for it and has worse health outcomes compared with those who already have a diagnosis of depression. Early recognition and treatment of depression may increase healthcare efficiency, positive patient experience, and HQoL among this vulnerable population.
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- 2019
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16. GlycA, a Novel Inflammatory Marker and Its Association With Peripheral Arterial Disease and Carotid Plaque: The Multi-Ethnic Study of Atherosclerosis.
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Fashanu OE, Oyenuga AO, Zhao D, Tibuakuu M, Mora S, Otvos JD, Stein JH, and Michos ED
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- Aged, Atherosclerosis diagnosis, Atherosclerosis therapy, Female, Humans, Inflammation diagnosis, Male, Middle Aged, Peripheral Arterial Disease diagnosis, Plaque, Atherosclerotic blood, Plaque, Atherosclerotic diagnosis, Proportional Hazards Models, Risk Assessment, Risk Factors, Atherosclerosis blood, Biomarkers blood, Inflammation blood, Peripheral Arterial Disease blood
- Abstract
GlycA, a composite biomarker of systemic inflammation, is associated with cardiovascular disease (CVD) and mortality, but its relationship with peripheral artery disease (PAD) is unknown. We assessed whether plasma GlycA is associated with ankle-brachial index (ABI), carotid plaque (CP), and incident clinical PAD among 6466 Multi-Ethnic Study of Atherosclerosis participants without CVD at baseline. GlycA, ABI, and CP were measured at baseline. Both ABI and CP were remeasured at 10 years. Incident clinical PAD was ascertained from hospital records. We used logistic, Cox, and linear mixed regression models adjusted for demographic and lifestyle factors. Mean (standard deviation, SD) was 62 (10) years for age and 381 (61) µmol/L for GlycA; 53% were women. GlycA was associated with both prevalent low ABI ≤0.8 (prevalence odds ratio [95% confidence interval, CI] per SD increment in GlycA, 1.65 [1.39-1.97]) and CP (1.19 [1.11-1.27]) at baseline. There were no significant associations of GlycA with incident low ABI, incident CP, or 10-year change in ABI or CP score. We identified 110 incident cases of PAD after 79 590 person-years. The hazard ratio (95% CI) of incident PAD per SD increment in GlycA was 1.38 (1.14-1.66). In conclusion, GlycA was associated with prevalent low ABI, prevalent CP, and incident PAD after a median of 14 years.
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- 2019
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17. National Trends in Cessation Counseling, Prescription Medication Use, and Associated Costs Among US Adult Cigarette Smokers.
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Tibuakuu M, Okunrintemi V, Jirru E, Echouffo Tcheugui JB, Orimoloye OA, Mehta PK, DeFilippis AP, Blaha MJ, and Michos ED
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- Adult, Aged, Aged, 80 and over, Cigarette Smoking epidemiology, Counseling statistics & numerical data, Cross-Sectional Studies, Female, Forecasting, Health Expenditures statistics & numerical data, Humans, Middle Aged, Smokers statistics & numerical data, Smoking Cessation statistics & numerical data, Surveys and Questionnaires, United States epidemiology, Young Adult, Cigarette Smoking trends, Counseling trends, Health Expenditures trends, Prescription Drugs, Smokers psychology, Smoking Cessation methods, Assessment of Medication Adherence
- Abstract
Importance: Cigarette smoking is the leading cause of preventable disease and death in the United States. When used separately or in combination, smoking cessation counseling and cessation medications have been associated with increased cessation rates., Objectives: To present trends in self-reported receipt of physician advice to quit smoking and in use of prescription smoking cessation medication along with their associated expenditures among a nationally representative sample of active adult smokers in the United States., Design, Setting, and Participants: This repeated cross-sectional study of US adults aged 18 years or older was conducted from July 5, 2018, through August 15, 2018. Data were collected between January 1, 2006, and December 31, 2015, from the Medical Expenditure Panel Survey, an annual US survey of individuals and families, health care personnel, and employers. Participants (n = 29 106) were noninstitutionalized civilians who were randomly drawn from the respondents of the previous year's National Health Interview Survey. Multivariable logistic regression models were used to examine the associations between sociodemographic factors and receipt of physician cessation advice and use of cessation prescription medication. A 2-part econometric model was used to assess health care expenditures., Main Outcomes and Measures: Trends in self-reported receipt of physician advice to quit and uptake of prescription smoking cessation medications with associated total and out-of-pocket expenditures., Results: The study sample consisted of 29 106 participants, with a mean (SD) age of 57 (10) years and a composition of 13 670 women (47.0%). The results were weighted to provide estimates for 31.2 million active adult cigarette smokers. The proportion of smokers who reported receiving physician advice to quit increased from 60.2% (95% CI, 58.5%-62.0%) in 2006 to 2007 to 64.9% (95% CI, 62.8%-66.9%) in 2014 to 2015, with a P for trend = .001. The odds of receiving physician cessation advice was statistically significantly higher in women (odds ratio [OR], 1.50; 95% CI, 1.39-1.59) and lower among uninsured participants (OR, 0.58; 95% CI, 0.52-0.65). Overall, prescription smoking cessation medication use decreased with a corresponding reduction in total expenditures from $146 million (out-of-pocket cost, $46 million) in 2006 to 2007 to $73 million (out-of-pocket cost, $9 million) in 2014 to 2015. Male (odds ratio [OR], 0.78; 95% CI, 0.66-0.91), uninsured (OR, 0.58; 95% CI, 0.41-0.83), and racial/ethnic minority (African American: OR, 0.51 [95% CI, 0.38-0.69]; Asian: OR, 0.31 [95% CI, 0.10-0.93]; Hispanic: OR, 0.53 [95% CI, 0.36-0.78]) participants were less likely to use prescription smoking cessation medications., Conclusions and Relevance: The lower rates of delivery of physician advice to quit smoking and the lower uptake of known prescription smoking cessation medications among men, younger adults, uninsured individuals, racial/ethnic minority groups, and those without smoking-associated comorbidities may be associated with the higher smoking rates among these subgroups despite an all-time low prevalence of smoking in the United States; this finding calls for a more targeted implementation of smoking cessation guidelines.
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- 2019
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18. Trends and Costs Associated With Suboptimal Physical Activity Among US Women With Cardiovascular Disease.
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Okunrintemi V, Benson EA, Tibuakuu M, Zhao D, Ogunmoroti O, Valero-Elizondo J, Gulati M, Nasir K, and Michos ED
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- Adolescent, Adult, Aged, Cardiovascular Diseases epidemiology, Cross-Sectional Studies, Female, Health Expenditures trends, Humans, Income trends, Middle Aged, Prevalence, Retrospective Studies, Risk Factors, Self Report, Socioeconomic Factors, United States epidemiology, Young Adult, Cardiovascular Diseases ethnology, Cardiovascular Diseases prevention & control, Exercise physiology, Health Expenditures statistics & numerical data
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Importance: Cardiovascular disease (CVD) is the leading cause of death and disability among women. Achievement of recommended physical activity (PA) levels is an essential component of CVD management., Objective: To describe trends, sociodemographic factors, and health care expenditures associated with suboptimal PA among a nationally representative sample of US women with CVD., Design, Setting, and Participants: This cross-sectional study used serial data from the Medical Expenditure Panel Survey from 2006 through 2015. The analyses were conducted in August 2018. Women who had self-reported and/or International Classification of Diseases, Ninth Revision, diagnosis of CVD were included., Main Outcomes and Measures: Recommended PA was defined as 30 minutes or more of moderate- to vigorous-intensity exercise, 5 or more days per week. Weighted logistic regression was used to examine the associations of various sociodemographic factors with suboptimal PA, adjusted for comorbidities. A 2-part econometric model was used to assess health care expenditures., Results: A total of 18 027 women were included in this study. The results were weighted to provide estimates for approximately 19.5 million adult women in the United States with CVD (mean [SD] age, 60.4 [16.9] years). More than half of the women with CVD reported suboptimal PA, a trend that increased during the 10-year period, with 58.2% (95% CI, 55.9%-60.5%) of participants reporting suboptimal PA in 2006-2007 vs 61.9% (95% CI, 59.7%-64.2%) in 2014-2015 (P = .004). The proportion of women with suboptimal PA differed by sociodemographic factors. In adjusted models, compared with non-Hispanic white women, African American women (odds ratio, 1.22; 95% CI, 1.08-1.38) and Hispanic women (odds ratio, 1.33; 95% CI, 1.13-1.58) were more likely to have suboptimal PA. Women from low- or very low-income strata (compared with high-income strata), enrolled in public insurance (compared with private insurance), and with less than high school education (compared with at least some college education) were more likely to have suboptimal PA. Health care costs among women with CVD with suboptimal PA were higher compared with those among women who met the recommended PA, and this increased through time, from a mean total health care expenditure of $12 724 (95% CI, $11 627-$13 821) in 2006-2007 to $14 820 (95% CI, $13 521-$16 119) in 2014-2015., Conclusions and Relevance: The proportion of women with CVD not meeting recommended PA is high and increasing, particularly among certain racial/ethnic and socioeconomic groups, and is associated with significant health care costs. More must be done to improve PA for secondary prevention and reduction of expenditures among women with CVD.
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- 2019
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19. The novel inflammatory marker GlycA and the prevalence and progression of valvular and thoracic aortic calcification: The Multi-Ethnic Study of Atherosclerosis.
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Ezeigwe A, Fashanu OE, Zhao D, Budoff MJ, Otvos JD, Thomas IC, Mora S, Tibuakuu M, and Michos ED
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- Aged, Aged, 80 and over, Atherosclerosis diagnosis, Cross-Sectional Studies, Disease Progression, Female, Follow-Up Studies, Glycosylation, Humans, Inflammation, Linear Models, Male, Middle Aged, Poisson Distribution, Prevalence, Risk Factors, Aorta, Thoracic pathology, Atherosclerosis blood, Biomarkers blood, Heart Valves pathology, Vascular Calcification blood, Vascular Calcification pathology
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Background and Aims: GlycA is a novel composite biomarker of systemic inflammation reflecting posttranslational glycosylation of acute phase reactants. GlycA has been associated with coronary artery calcium, cardiovascular disease (CVD) events and mortality. Vascular calcifications outside of the coronary arteries are risk markers of CVD and mortality. Whether GlycA is linked to extra-coronary calcifications (ECC) is not well established., Methods: We studied 6462 MESA participants free of clinical CVD who had plasma GlycA measured at baseline. ECCs [calcification in aortic valve (AVC), mitral annulus (MAC), ascending and descending thoracic aorta (ATAC, DTAC)] were ascertained at baseline and follow-up visit (median 2.3-yrs later) by cardiac CT. Poisson regression models with robust variance estimation assessed associations of GlycA with prevalent and incident ECC. Linear mixed models assessed the cross-sectional and 2-year change in ECC. Models were adjusted for demographic and lifestyle factors., Results: In cross-sectional analysis, GlycA (per SD increment) was positively associated with prevalent AVC, ATAC and DTAC with adjusted prevalence ratios (95% CI) of 1.08 (1.01-1.14), 1.18 (1.03-1.34) and 1.10 (1.06-1.14), respectively. There was also a significant association between GlycA and baseline extent of both ATAC and DTAC. Longitudinally, GlycA was positively associated with incident MAC and DTAC, with adjusted incidence ratios of 1.18 (1.03-1.37) and 1.17 (1.07-1.28), respectively. GlycA was also associated with 2-year change in MAC and DTAC extent., Conclusions: In this diverse cohort free from clinical CVD, we found GlycA was positively associated with prevalent and incident ECC measures, in particular for progression of MAC and DTAC., (Copyright © 2019 Elsevier B.V. All rights reserved.)
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- 2019
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20. GlycA, a novel inflammatory marker, is associated with subclinical coronary disease.
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Tibuakuu M, Fashanu OE, Zhao D, Otvos JD, Brown TT, Haberlen SA, Guallar E, Budoff MJ, Palella FJ Jr, Martinson JJ, Akinkuolie AO, Mora S, Post WS, and Michos ED
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- Adult, Aged, Cross-Sectional Studies, Glycosylation, Humans, Male, Middle Aged, Prevalence, Prospective Studies, Risk Factors, Viral Load, Acute-Phase Proteins chemistry, Biomarkers blood, Biomarkers chemistry, Coronary Disease diagnosis, HIV Infections complications, Polysaccharides analysis
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Objective: GlycA, a novel NMR biomarker of inflammation, has been associated with incident cardiovascular disease (CVD) in the general population, but its association with CVD among HIV-infected individuals is unknown. We examined the associations between GlycA and subclinical coronary plaque among HIV-infected and HIV-uninfected men participating in Multicenter AIDS Cohort Study (MACS)., Design: Cross-sectional analysis of 935 men with plasma measurement of GlycA and noncontrast cardiac computed tomography (CT) and/or coronary CT angiography., Methods: We used multivariable Poisson and linear regression to assess associations of GlycA with prevalent coronary atherosclerosis and plaque extent, respectively., Results: Mean ± SD age was 54 ± 7 years; 31% were black; 63% HIV-infected. GlycA levels were higher in HIV-infected compared with HIV-uninfected men (397 ± 68 vs. 380 ± 60 μmol/l, P = 0.0001) and higher for men with detectable viral load vs. undetectable (413 ± 79 vs. 393 ± 65 μmol/l, P = 0.004). After adjusting for HIV serostatus, demographic and CVD risk factors, every 1SD increment in GlycA level was associated with a higher prevalence of coronary artery calcium (CAC >0) [prevalence ratio 1.09 (95% CI 1.03-1.15)] and coronary stenosis at least 50% [1.20 (1.02-1.41)]. These associations were not significantly altered after adjusting for traditional inflammatory biomarkers or differ by HIV serostatus. Among men with plaque, GlycA was positively associated with the extent of CAC and total plaque., Conclusion: HIV infection was associated with higher GlycA levels. In both HIV-infected and HIV-uninfected individuals, GlycA was significantly associated with several measures of subclinical coronary atherosclerosis, independent of other CVD risk factors and inflammatory biomarkers. These findings suggest the potential role of GlycA in CVD risk stratification among HIV patients.
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- 2019
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21. Gender Differences in Patient-Reported Outcomes Among Adults With Atherosclerotic Cardiovascular Disease.
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Okunrintemi V, Valero-Elizondo J, Patrick B, Salami J, Tibuakuu M, Ahmad S, Ogunmoroti O, Mahajan S, Khan SU, Gulati M, Nasir K, and Michos ED
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- Adolescent, Adult, Aged, Atherosclerosis epidemiology, Atherosclerosis physiopathology, Atherosclerosis psychology, Cross-Sectional Studies, Female, Health Communication, Health Knowledge, Attitudes, Practice, Humans, Hydroxymethylglutaryl-CoA Reductase Inhibitors therapeutic use, Male, Middle Aged, Patient Satisfaction, Physician-Patient Relations, Platelet Aggregation Inhibitors therapeutic use, Quality of Life, Retrospective Studies, Risk Factors, Sex Factors, United States epidemiology, Young Adult, Atherosclerosis therapy, Health Status Disparities, Healthcare Disparities, Patient Reported Outcome Measures
- Abstract
Background Atherosclerotic cardiovascular disease ( ASCVD ) accounts for approximately one third of deaths in women. Although there is an established relationship between positive patient experiences, health-related quality of life, and improved health outcomes, little is known about gender differences in patient-reported outcomes among ASCVD patients. We therefore compared gender differences in patient-centered outcomes among individuals with ASCVD . Methods and Results Data from the 2006 to 2015 Medical Expenditure Panel Survey, a nationally representative US sample, were used for this study. Adults ≥18 years with a diagnosis of ASCVD , ascertained by International Classification of Diseases, Ninth Revision ( ICD-9) codes and/or self-reported data, were included. Linear and logistic regression were used to compare self-reported patient experience, perception of health, and health-related quality of life by gender. Models adjusted for demographics, socioeconomic status, and comorbidities. There were 21 353 participants included, with >10 000 (47%-weighted) of the participants being women, representing ≈11 million female adults with ASCVD nationwide. Compared with men, women with ASCVD were more likely to experience poor patient-provider communication (odds ratio 1.25 [95% confidence interval 1.11-1.41]), lower healthcare satisfaction (1.12 [1.02-1.24]), poor perception of health status (1.15 [1.04-1.28]), and lower health-related quality of life scores. Women with ASCVD also had lower use of aspirin and statins, and greater odds of ≥2 Emergency Department visits/y. Conclusions Women with ASCVD were more likely to report poorer patient experience, lower health-related quality of life, and poorer perception of their health when compared with men. These findings have important public health implications and require more research towards understanding the gender-specific differences in healthcare quality, delivery, and ultimately health outcomes among individuals with ASCVD .
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- 2018
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22. Air Pollution and Cardiovascular Disease: A Focus on Vulnerable Populations Worldwide.
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Tibuakuu M, Michos ED, Navas-Acien A, and Jones MR
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Purpose of Review: Certain subgroups defined by sociodemographics (race/ethnicity, age, sex and socioeconomic status [SES]), geographic location (rural vs. urban), comorbid conditions and country economic conditions (developed vs. developing) may disproportionately suffer the adverse cardiovascular effects of exposure to ambient air pollution. Yet, previous reviews have had a broad focus on the general population without consideration of these potentially vulnerable populations., Recent Findings: Over the past decade, a wealth of epidemiologic studies have linked air pollutants including particulate matter, oxides of nitrogen, and carbon monoxide to cardiovascular disease (CVD) risk factors, subclinical CVD, clinical cardiovascular outcomes and cardiovascular mortality in certain susceptible populations. Highest risk for poor CVD outcomes from air pollution exist in racial/ethnic minorities, especially in blacks compared to whites in the U.S, those at low SES, elderly populations, women, those with certain comorbid conditions and developing countries compared to developed countries. However, findings are less consistent for urban compared to rural populations., Summary: Vulnerable subgroups including racial/ethnic minorities, women, the elderly, smokers, diabetics and those with prior heart disease had higher risk for adverse cardiovascular outcomes from exposure to air pollution. There is limited data from developing countries where concentrations of air pollutants are more extreme and cardiovascular event rates are higher than that of developed countries. Further epidemiologic studies are needed to understand and address the marked disparities in CVD risk conferred by air pollution globally, particularly among these vulnerable subgroups.
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- 2018
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23. Associations of ideal cardiovascular health with GlycA, a novel inflammatory marker: The Multi-Ethnic Study of Atherosclerosis.
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Benson EA, Tibuakuu M, Zhao D, Akinkuolie AO, Otvos JD, Duprez DA, Jacobs DR Jr, Mora S, and Michos ED
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- Aged, Aged, 80 and over, Biomarkers blood, Blood Glucose analysis, Blood Pressure, Body Mass Index, Cardiovascular Diseases diagnosis, Cardiovascular Diseases ethnology, Cardiovascular Diseases physiopathology, Cholesterol blood, Cross-Sectional Studies, Diet, Healthy, Exercise, Female, Glycosylation, Humans, Inflammation diagnosis, Inflammation ethnology, Inflammation physiopathology, Male, Middle Aged, Prognosis, Protein Processing, Post-Translational, Risk Assessment, Risk Factors, Smoking Cessation, United States epidemiology, Acute-Phase Proteins analysis, Cardiovascular Diseases blood, Health Status, Health Status Indicators, Healthy Lifestyle, Inflammation blood, Inflammation Mediators blood
- Abstract
Background: Unhealthy lifestyles and inflammation contribute to cardiovascular disease (CVD). GlycA is a novel biomarker of systemic inflammation representing post-translational glycosylation of acute phase reactants and associated with increased clinical CVD risk., Hypothesis: We hypothesized that ideal cardiovascular health (CVH), as assessed by (higher) Life's Simple 7 (LS7) scores, would be associated with lower GlycA levels among individuals free of CVD in a multiethnic community-based population., Methods: This was a cross-sectional study of 6479 Multi-Ethnic Study of Atherosclerosis participants [53% women; mean age 62 ± 10 years] with GlycA levels measured at baseline by nuclear magnetic resonance spectroscopy. The LS7 metrics (smoking, physical activity, diet, body mass index, blood pressure, cholesterol, and glucose) were each scored as ideal (2), moderate (1), or poor (0). Total scores were summed and categorized as optimal (12-14), average (8-11), and inadequate (0-7). Linear regression assessed percent difference in GlycA by LS7 scores, after adjusting for age, sex, ethnicity, education, income, family history of CVD, and other inflammatory biomarkers., Results: GlycA levels were 403.4 ± 63.1, 374.4 ± 59.2, and 350.3 ± 56.2 micromoles per liter (μmol/L) for inadequate, average, and optimal CVH, respectively (P-trend <0.001). After multivariable adjustment, GlycA remained independently and inversely associated with CVH categories, with a lower mean GlycA level of 5 μmol/L (95% confidence interval 4.5-5.8) for each one unit increment in LS7 score., Conclusions: Among this group of ethnically diverse individuals without CVD, suboptimal CVH is associated with higher GlycA levels, independent of traditional inflammatory biomarkers. Strategies aimed at improving CVH might reduce GlycA, which could be a marker of reduced risk of future CVD events., (© 2018 Wiley Periodicals, Inc.)
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- 2018
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24. Outpatient Parenteral Therapy for Complicated Staphylococcus aureus Infections: A Snapshot of Processes and Outcomes in the Real World.
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Townsend J, Keller S, Tibuakuu M, Thakker S, Webster B, Siegel M, Psoter KJ, Mansour O, and Perl TM
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Background: In the United States, patients discharged on outpatient parenteral antimicrobial therapy (OPAT) are often treated by home health companies (HHCs) or skilled nursing facilities (SNFs). Little is known about differences in processes and outcomes between these sites of care., Methods: We performed a retrospective study of 107 patients with complicated Staphylococcus aureus infections discharged on OPAT from 2 academic medical centers. Clinical characteristics, site of posthospital care, process measures (lab test monitoring, clinic follow-up), adverse events (adverse drug events, Clostridium difficile infection, line events), and clinical outcomes at 90 days (cure, relapse, hospital readmission) were collected. Comparisons between HHCs and SNFs were conducted., Results: Overall, 33% of patients experienced an adverse event during OPAT, and 64% were readmitted at 90 days. Labs were received for 44% of patients in SNFs and 56% of patients in HHCs. At 90 days after discharge, a higher proportion of patients discharged to an SNF were lost to follow-up (17% vs 3%; P = .03) and had line-related adverse events (18% vs 2%; P < .01). Patients discharged to both sites of care experienced similar clinical outcomes, with favorable outcomes occurring in 61% of SNF patients and 70% of HHC patients at 90 days. There were no differences in rates of relapse, readmission, or mortality., Conclusions: Patients discharged to SNFs may be at higher risk for line events than patients discharged to HHCs. Efforts should be made to strengthen basic OPAT processes, such as lab monitoring and clinic follow-up, at both sites of care.
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- 2018
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25. Resting heart rate and the incidence and progression of valvular calcium: The Multi-Ethnic Study of Atherosclerosis (MESA).
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Amoakwa K, Fashanu OE, Tibuakuu M, Zhao D, Guallar E, Whelton SP, O'Neal WT, Post WS, Budoff MJ, and Michos ED
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- Black or African American, Age Factors, Aortic Valve Stenosis epidemiology, Asian, Calcinosis epidemiology, Disease Progression, Female, Hispanic or Latino, Humans, Incidence, Male, Middle Aged, Prospective Studies, Sex Factors, White People, Aortic Valve pathology, Aortic Valve Stenosis etiology, Calcinosis etiology, Heart Rate, Mitral Valve
- Abstract
Background and Aims: Left-sided valvular calcification is associated with cardiovascular disease (CVD) morbidity and mortality. Resting heart rate (RHR) may influence valvular calcium progression through shear stress. Whether RHR, an established CVD risk factor, is associated with valvular calcium progression is unknown. We assessed whether RHR predicts incidence and progression of mitral annular calcium (MAC) and aortic valve calcium (AVC) in a community-based cohort free of CVD at baseline., Methods: RHR was obtained from baseline electrocardiograms of 5498 MESA participants. MAC and AVC were quantified using Agatston scoring from cardiac computed tomography scans obtained at baseline and at a second examination during follow-up. We examined associations of RHR with incident MAC/AVC and annual change in MAC/AVC scores, after adjusting for demographics, CVD risk factors, physical activity, and atrioventricular nodal blocker use., Results: At baseline, participants had mean age of 62 ± 10 years and mean RHR of 63 ± 10 bpm; 12.3% and 8.9% had prevalent AVC and MAC, respectively. Over a median of 2.3 years, 4.1% and 4.5% developed incident AVC and MAC, respectively. Each 10 bpm higher RHR was significantly associated with incident MAC [Risk Ratio 1.17 (95% CI 1.03-1.34)], but not incident AVC. However, RHR was associated with AVC progression [β = 1.62 (0.45-2.80) Agatston units/year for every 10 bpm increment], but not MAC progression., Conclusions: Higher RHR was associated with MAC incidence and AVC progression, independent of traditional CVD risk factors. Future studies are needed to determine whether modification of RHR through lifestyle or pharmacologic interventions can reduce valvular calcium incidence or progression., (Copyright © 2018 Elsevier B.V. All rights reserved.)
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- 2018
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26. Usefulness of Lipoprotein-Associated Phospholipase A 2 Activity and C-Reactive Protein in Identifying High-Risk Smokers for Atherosclerotic Cardiovascular Disease (from the Atherosclerosis Risk in Communities Study).
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Tibuakuu M, Kianoush S, DeFilippis AP, McEvoy JW, Zhao D, Guallar E, Ballantyne CM, Hoogeveen RC, Blaha MJ, and Michos ED
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- Age Distribution, Aged, Biomarkers metabolism, Cardiovascular Diseases epidemiology, Cardiovascular Diseases etiology, Cardiovascular Diseases physiopathology, Cohort Studies, Coronary Artery Disease physiopathology, Cross-Sectional Studies, Female, Humans, Incidence, Male, Middle Aged, Predictive Value of Tests, Prognosis, Proportional Hazards Models, Prospective Studies, Risk Assessment, Sex Distribution, Smoking epidemiology, Survival Rate, United States epidemiology, 1-Alkyl-2-acetylglycerophosphocholine Esterase metabolism, C-Reactive Protein metabolism, Coronary Artery Disease epidemiology, Coronary Artery Disease etiology, Smoking adverse effects
- Abstract
Despite the causal role of cigarette smoking in atherosclerotic cardiovascular disease (ASCVD), the underlying mechanisms are not fully understood. We evaluated the joint relation between smoking and inflammatory markers with ASCVD risk. We tested cross-sectional associations of self-reported smoking status (never, former, current) and intensity (packs/day) with lipoprotein-associated phospholipase A
2 (Lp-PLA2 ) activity and high-sensitivity C-reactive protein (hsCRP) in 10,506 Atherosclerosis Risk in Communities participants at Visit 4 (1996 to 1998). Using Cox hazard models adjusted for demographic and traditional ASCVD risk factors, we examined the associations of smoking status and intensity with incident adjudicated ASCVD events (n = 1,745 cases) over an average of 17 years, stratified by Lp-PLA2 and hsCRP categories. Greater packs/day smoked was linearly associated with higher levels of both Lp-PLA2 and hsCRP among current smokers. Compared with never smokers, the hazard ratio for incident ASCVD in current smokers was 2.04 (95% CI 1.76 to 2.35). Among current smokers, the risk for ASCVD per 1 pack/day greater was 1.39 (1.10 to 1.76). Both Lp-PLA2 activity ≥253 nmol/min/ml and hsCRP >3 mg/L identified current smokers at the highest risk for incident ASCVD, with similar hazard ratios. hsCRP risk-stratified current smokers better based on intensity. Among current smokers, hsCRP improved ASCVD prediction beyond traditional risk factors better than Lp-PLA2 (C-statistic 0.675 for hsCRP vs 0.668 for Lp-PLA2, p = 0.001). In this large cohort with long follow-up, we found a dose-response relation between smoking intensity with Lp-PLA2 activity, hsCRP, and ASCVD events. Although both Lp-PLA2 activity and hsCRP categories identified high risk among current smokers, hsCRP may better stratify risk of future ASCVD., (Copyright © 2018 Elsevier Inc. All rights reserved.)- Published
- 2018
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27. Low thigh muscle mass is associated with coronary artery stenosis among HIV-infected and HIV-uninfected men: The Multicenter AIDS Cohort Study (MACS).
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Tibuakuu M, Zhao D, Saxena A, Brown TT, Jacobson LP, Palella FJ Jr, Witt MD, Koletar SL, Margolick JB, Guallar E, Korada SKC, Budoff MJ, Post WS, and Michos ED
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- Aged, Body Composition, Chi-Square Distribution, Coronary Artery Disease epidemiology, Coronary Artery Disease pathology, Coronary Stenosis epidemiology, Coronary Stenosis pathology, Coronary Vessels pathology, Cross-Sectional Studies, HIV Infections diagnosis, Humans, Male, Middle Aged, Multivariate Analysis, Muscle, Skeletal physiopathology, Odds Ratio, Plaque, Atherosclerotic, Predictive Value of Tests, Prevalence, Prospective Studies, Risk Factors, Sarcopenia epidemiology, Sarcopenia physiopathology, Thigh, United States epidemiology, Computed Tomography Angiography, Coronary Angiography methods, Coronary Artery Disease diagnostic imaging, Coronary Stenosis diagnostic imaging, Coronary Vessels diagnostic imaging, HIV Infections epidemiology, Muscle, Skeletal diagnostic imaging, Sarcopenia diagnostic imaging, Tomography, X-Ray Computed
- Abstract
Background: HIV-infected individuals are at increased risk for both sarcopenia and cardiovascular disease. Whether an association between low muscle mass and subclinical coronary artery disease (CAD) exists, and if it is modified by HIV serostatus, are unknown., Methods: We performed cross-sectional analysis of 513 male MACS participants (72% HIV-infected) who underwent mid-thigh computed tomography (CT) and non-contrast cardiac CT for coronary artery calcium (CAC) during 2010-2013. Of these, 379 also underwent coronary CT angiography for non-calcified coronary plaque (NCP) and obstructive coronary stenosis ≥50%. Multivariable-adjusted Poisson regression was used to estimate prevalence risk ratios of associations between low muscle mass (<20th percentile of the HIV-uninfected individuals in the sample) and CAC, NCP and obstructive stenosis., Results: The prevalence of low thigh muscle mass was similar by HIV serostatus (20%). There was no association of low muscle mass with CAC or NCP. However, low thigh muscle mass was significantly associated with a 2.5-fold higher prevalence of obstructive coronary stenosis, after adjustment for demographics and traditional CAD risk factors [PR 2.46 (95% CI 1.51, 4.01)]. This association remained significant after adjustment for adiposity, inflammation, and physical activity. There was no significant interaction by HIV serostatus (p-interaction = 0.90)., Conclusions: In this exploratory analysis, low thigh muscle mass was significantly associated with subclinical obstructive coronary stenosis. Additional studies involving larger sample sizes and prospective analyses are needed to confirm the potential utility of measuring mid-thigh muscle mass for identifying individuals at increased risk for obstructive CAD who might benefit from more aggressive risk factor management., (Copyright © 2018 Society of Cardiovascular Computed Tomography. Published by Elsevier Inc. All rights reserved.)
- Published
- 2018
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28. Exposure to ambient air pollution and calcification of the mitral annulus and aortic valve: the multi-ethnic study of atherosclerosis (MESA).
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Tibuakuu M, Jones MR, Navas-Acien A, Zhao D, Guallar E, Gassett AJ, Sheppard L, Budoff MJ, Kaufman JD, and Michos ED
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- Aged, Aged, 80 and over, Air Pollutants analysis, Air Pollution analysis, Aortic Valve diagnostic imaging, Aortic Valve drug effects, Atherosclerosis, Calcinosis diagnostic imaging, Calcinosis ethnology, Environmental Exposure analysis, Female, Heart Valve Diseases diagnostic imaging, Heart Valve Diseases ethnology, Hispanic or Latino, Humans, Male, Middle Aged, Mitral Valve diagnostic imaging, Nitrogen Oxides analysis, Particulate Matter analysis, Racial Groups, Tomography, X-Ray Computed, Air Pollutants adverse effects, Air Pollution adverse effects, Calcinosis etiology, Environmental Exposure adverse effects, Heart Valve Diseases etiology, Mitral Valve drug effects, Particulate Matter adverse effects
- Abstract
Background: Long-term exposure to high ambient air pollution has been associated with coronary artery calcium (CAC), a marker of cardiovascular disease (CVD). Calcifications of left-sided heart valves are also markers of CVD risk. We investigated whether air pollution was associated with valvular calcification and its progression., Methods: We studied 6253 MESA participants aged 45-84 years who underwent two cardiac CT scans 2.5 years apart to quantify aortic valve calcium (AVC) and mitral annular calcium (MAC). CAC was included for the same timeframe for comparison with AVC/MAC. Ambient particulate matter <2.5 μm (PM
2.5 ) and oxides of nitrogen (NOx ) concentrations were predicted from residence-specific spatio-temporal models., Results: The mean age (SD) of the study sample was 62 (10) years, 39% were white, 27% black, 22% Hispanic, and 12% Chinese. The prevalence of AVC and MAC at baseline were 13% and 9% respectively, compared to 50% prevalence of CAC. The adjusted prevalence ratios of AVC and MAC for each 5 μg/m3 higher PM2.5 was 1.19 (95% CI 0.87, 1.62) and 1.20 (0.81, 1.77) respectively, and for CAC was 1.14 (1.01, 1.27). Over 2.5 years, the mean change in Agatston units/year for each 5 μg/m3 higher PM2.5 concentration was 0.29 (-5.05, 5.63) for AVC and 4.38 (-9.13, 17.88) for MAC, compared to 8.66 (0.61, 16.71) for CAC. We found no significant associations of NOx with AVC and MAC., Conclusion: Our findings suggest a trend towards increased 2.5-year progression of MAC with exposure to outdoor PM2.5 , although this association could not be confirmed. Additional well-powered studies with longer periods of follow-up are needed to further study associations of air pollution with valvular calcium., Trial Registration: Although MESA is not a clinical trial, this cohort is registered at ClinicalTrials.gov Identifier: NCT00005487; Date of registration May 25, 2000.- Published
- 2017
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29. Frailty and subclinical coronary atherosclerosis: The Multicenter AIDS Cohort Study (MACS).
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Korada SKC, Zhao D, Tibuakuu M, Brown TT, Jacobson LP, Guallar E, Bolan RK, Palella FJ, Margolick JB, Martinson JJ, Budoff MJ, Post WS, and Michos ED
- Subjects
- Acquired Immunodeficiency Syndrome diagnosis, Asymptomatic Diseases, Computed Tomography Angiography, Coronary Angiography methods, Coronary Artery Disease diagnostic imaging, Cross-Sectional Studies, Exercise, Frailty diagnosis, Frailty physiopathology, Health Status, Humans, Linear Models, Male, Middle Aged, Multivariate Analysis, Muscle Strength, Muscle Weakness, Plaque, Atherosclerotic, Prevalence, Prognosis, Risk Factors, United States epidemiology, Vascular Calcification diagnostic imaging, Weight Loss, Acquired Immunodeficiency Syndrome epidemiology, Coronary Artery Disease epidemiology, Frailty epidemiology, Vascular Calcification epidemiology
- Abstract
Background and Aims: Frailty and cardiovascular disease share many risk factors. We evaluated whether frailty is independently associated with subclinical coronary atherosclerosis and whether any relationships differ by HIV-serostatus., Methods: We studied 976 [62% HIV-infected] male participants of the Multicenter AIDS Cohort Study who underwent assessment of frailty and non-contrast cardiac CT scanning; of these, 747 men also underwent coronary CT angiography (CCTA). Frailty was defined as having ≥3 of 5 of the following: weakness, slowness, weight loss, exhaustion, and low physical activity. Coronary artery calcium (CAC) was assessed by non-contrast CT, and total plaque score (TPS), mixed plaque score (MPS), and non-calcified plaque score (NCPS) by CCTA. Multivariable-adjusted regression was used to assess the cross-sectional associations between frailty and subclinical coronary atherosclerosis., Results: Mean (SD) age of participants was 54 (7) years; 31% were black. Frailty existed in 7.5% and 14.3% of HIV-uninfected and HIV-infected men, respectively. After adjustment for demographics, frailty was significantly associated with prevalence of any CAC (CAC>0), any plaque (TPS>0), and mixed plaque (MPS>0) in HIV-uninfected but not in HIV-infected men (p-interaction
HIV <0.05 for all). Among HIV-uninfected men, after adjustment for cardiovascular risk factors, frailty was significantly associated only with CAC>0 [Prevalence Ratio 1.27 (95%CI 1.02, 1.59)] and TPS>0 [1.19 (1.06, 1.35)]. No association was found for NCPS., Conclusions: Frailty was independently associated with subclinical coronary atherosclerosis among HIV-uninfected men, but not among HIV-infected men. Further work is needed to ascertain mechanisms underlying these differences and whether interventions that improve frailty (i.e. strength training) can improve cardiovascular outcomes., (Copyright © 2017 Elsevier B.V. All rights reserved.)- Published
- 2017
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30. The association between cigarette smoking and inflammation: The Genetic Epidemiology Network of Arteriopathy (GENOA) study.
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Tibuakuu M, Kamimura D, Kianoush S, DeFilippis AP, Al Rifai M, Reynolds LM, White WB, Butler KR, Mosley TH, Turner ST, Kullo IJ, Hall ME, and Blaha MJ
- Subjects
- Aged, Biomarkers blood, Female, Humans, Inflammation blood, Inflammation epidemiology, Male, Middle Aged, Molecular Epidemiology, Prevalence, Smoking epidemiology, C-Reactive Protein metabolism, Smoking blood
- Abstract
To inform the study and regulation of emerging tobacco products, we sought to identify sensitive biomarkers of tobacco-induced subclinical cardiovascular damage by testing the cross-sectional associations of smoking with 17 biomarkers of inflammation in 2,702 GENOA study participants belonging to sibships ascertained on the basis of hypertension. Cigarette smoking was assessed by status, intensity (number of cigarettes per day), burden (pack-years of smoking), and time since quitting. We modeled biomarkers as geometric mean (GM) ratios using generalized estimating equations (GEE). The mean age of participants was 61 ±10 years; 64.5% were women and 54.4% African American. The prevalence of smoking was 12.2%. After adjusting for potential confounders, 6 of 17 biomarkers were significantly higher among current smokers at a Bonferroni adjusted p-value threshold (p<0.003). High sensitivity C-reactive protein was the most elevated biomarker among current smokers when compared to never smokers [GM ratio = 1.39 (95% CI: 1.23, 1.57); p <0.001]. Among former smokers, each pack-year of cigarettes smoked was associated with a 0.4% higher serum level of hsCRP [GM ratio = 1.004 (95% CI: 1.001, 1.006); p = 0.002] and each 5-year lapsed since quitting was associated with a 4% lower serum level of hsCRP [GM ratio = 0.96 (95% CI: 0.93, 0.99); p = 0.006]. However, we found no significant association of smoking intensity or burden with biomarkers of inflammation among current smokers. HsCRP appears to be the most sensitive biomarker of inflammation associated with cigarette smoking of those investigated, and could be a useful biomarker of smoking-related injury for the study and regulation of emerging tobacco products.
- Published
- 2017
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31. Association Between Smoking and Serum GlycA and High-Sensitivity C-Reactive Protein Levels: The Multi-Ethnic Study of Atherosclerosis (MESA) and Brazilian Longitudinal Study of Adult Health (ELSA-Brasil).
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Kianoush S, Bittencourt MS, Lotufo PA, Bensenor IM, Jones SR, DeFilippis AP, Toth PP, Otvos JD, Tibuakuu M, Hall ME, Harada PHN, and Blaha MJ
- Subjects
- Adult, Aged, Aged, 80 and over, Atherosclerosis diagnosis, Atherosclerosis epidemiology, Biomarkers blood, Brazil epidemiology, Cross-Sectional Studies, Female, Glycosylation, Humans, Inflammation diagnosis, Inflammation epidemiology, Longitudinal Studies, Male, Middle Aged, Predictive Value of Tests, Prognosis, Risk Assessment, Risk Factors, Smoking blood, Smoking epidemiology, Time Factors, United States epidemiology, Acute-Phase Proteins analysis, Atherosclerosis blood, C-Reactive Protein analysis, Inflammation blood, Inflammation Mediators blood, Smoking adverse effects
- Abstract
Background: Inflammation is suggested to be a central feature of atherosclerosis, particularly among smokers. We studied whether inflammatory biomarkers GlycA and high-sensitivity C-reactive protein are associated with cigarette smoking., Methods and Results: A total of 11 509 participants, 6774 from the MESA (Multi-Ethnic Study of Atherosclerosis) and 4735 from ELSA-Brasil (The Brazilian Longitudinal Study of Adult Health) were included. We evaluated the cross-sectional association between multiple measures of smoking behavior and the inflammatory biomarkers, GlycA and high-sensitivity C-reactive protein, using regression models adjusted for demographic, anthropometric, and clinical characteristics. Participants were 57.7±11.1 years old and 46.4% were men. Never, former, and current smokers comprised 51.7%, 34.0%, and 14.3% of the population, respectively. Multivariable-adjusted mean absolute difference in GlycA levels (μmol/L) with 95% confidence interval (CI) were higher for former (4.1, 95% CI, 1.7-6.6 μmol/L) and current smokers (19.9, 95% CI, 16.6-23.2 μmol/L), compared with never smokers. Each 5-unit increase in pack-years of smoking was associated with higher GlycA levels among former (0.7, 95% CI, 0.3-1.1 μmol/L) and current smokers (1.6, 95% CI, 0.8-2.4 μmol/L). Among former smokers, each 5-year increase in time since quitting smoking was associated with lower GlycA levels (-1.6, 95% CI, -2.4 to -0.8 μmol/L) and each 10-unit increase in number of cigarettes/day was associated with higher GlycA among current smokers (2.8, 95% CI, 0.5-5.2 μmol/L). There were similar significant associations between all measures of smoking behavior, and both log-transformed GlycA and high-sensitivity C-reactive protein., Conclusions: Acute and chronic exposure to tobacco smoking is associated with inflammation, as quantified by both GlycA and high-sensitivity C-reactive protein. These biomarkers may have utility for the study and regulation of novel and traditional tobacco products., (© 2017 The Authors. Published on behalf of the American Heart Association, Inc., by Wiley.)
- Published
- 2017
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32. Relation of Serum Vitamin D to Risk of Mitral Annular and Aortic Valve Calcium (from the Multi-Ethnic Study of Atherosclerosis).
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Tibuakuu M, Zhao D, de Boer IH, Guallar E, Bortnick AE, Lutsey PL, Budoff MJ, Kizer JR, Kestenbaum BR, and Michos ED
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- Aged, Aged, 80 and over, Atherosclerosis ethnology, Atherosclerosis metabolism, Calcinosis ethnology, Calcinosis metabolism, Calcium metabolism, Female, Follow-Up Studies, Heart Valve Diseases ethnology, Heart Valve Diseases metabolism, Humans, Incidence, Male, Middle Aged, Prevalence, Retrospective Studies, Risk Factors, Tomography, X-Ray Computed, United States epidemiology, Vitamin D blood, Aortic Valve diagnostic imaging, Atherosclerosis blood, Calcinosis etiology, Ethnicity, Heart Valve Diseases etiology, Mitral Valve diagnostic imaging, Vitamin D analogs & derivatives
- Abstract
Serum 25-hydroxyvitamin D [25(OH)D] concentration has been identified as a possible modifiable risk factor for cardiovascular disease (CVD). We hypothesized that serum 25(OH)D concentration would be associated with calcifications of the left-sided heart valves, which are markers of CVD risk. Aortic valve calcium (AVC) and mitral annular calcium (MAC) were quantified from cardiac computed tomography scans performed on 5,530 Multi-Ethnic Study of Atherosclerosis participants at the baseline examination (2000 to 2002) and at a follow-up visit at either Examination 2 (2002 to 2004) or Examination 3 (2004 to 2005). 25(OH)D was measured from serum samples collected at the baseline examination. Using relative risk regression, we evaluated the multivariable-adjusted risk of prevalent and incident AVC and MAC in this ethnically diverse population free of clinical CVD at baseline. The mean age of participants was 62 ± 10 years; 53% were women, 40% white, 26% black, 21% Hispanic, and 12% Chinese. Prevalent AVC and MAC were observed in 12% and 9% of study sample, respectively. There were no significant associations between 25(OH)D and prevalent AVC or MAC. Over a mean follow-up of 2.5 years, 4% developed incident AVC and 5% developed incident MAC. After adjusting for demographic variables, each 10 ng/ml higher serum 25(OH)D was associated with a 15% (relative risk 0.85, 95% confidence interval 0.74 to 0.98) lower risk of incident MAC but not AVC. However, this association was no longer significant after adjusting for lifestyle and CVD risk factors. Results suggest a possible link between serum 25(OH)D and the risk for incident MAC, but future studies with longer follow-up are needed to further test this association., (Copyright © 2017 Elsevier Inc. All rights reserved.)
- Published
- 2017
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33. Physical Activity, Vitamin D, and Incident Atherosclerotic Cardiovascular Disease in Whites and Blacks: The ARIC Study.
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Chin K, Zhao D, Tibuakuu M, Martin SS, Ndumele CE, Florido R, Windham BG, Guallar E, Lutsey PL, and Michos ED
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- Atherosclerosis complications, Atherosclerosis ethnology, Cross-Sectional Studies, Female, Humans, Incidence, Male, Middle Aged, Prospective Studies, Vitamin D Deficiency blood, Vitamin D Deficiency complications, Vitamin D Deficiency ethnology, Atherosclerosis blood, Atherosclerosis epidemiology, Black People statistics & numerical data, Exercise, Vitamin D blood, Vitamin D Deficiency epidemiology, White People statistics & numerical data
- Abstract
Context: Physical activity (PA) is associated with 25-hydroxyvitamin D [25(OH)D] levels. Both are associated with atherosclerotic cardiovascular disease (ASCVD), but their joint association with ASCVD risk is unknown., Objective: To examine the relationship between PA and 25(OH)D, and assess effect modification of 25(OH)D and PA with ASCVD., Design: Cross-sectional and prospective study., Setting: Community-dwelling cohort., Participants: A total of 10,342 participants free of ASCVD, with moderate- to vigorous-intensity PA assessed (1987 to 1989) and categorized per American Heart Association (AHA) guidelines (recommended, intermediate, or poor)., Main Outcome Measures: Serum 25(OH)D levels (1990 to 1992) and ASCVD events (i.e., incident myocardial infarction, fatal coronary disease, or stroke) through 2013., Results: Participants had mean age of 54 years, and were 57% women, 21% black, 30% 25(OH)D deficient [<20 ng/mL (<50 nmol/L)], and <40% meeting AHA-recommended PA. PA was linearly associated with 25(OH)D levels in whites. Whites meeting recommended PA were 37% less likely to have 25(OH)D deficiency [relative risk, 0.63 (95% confidence interval [CI], 0.56, 0.71)]; there was no significant association in blacks. Over 19.3 years of follow-up, 1800 incident ASCVD events occurred. Recommended PA was associated with reduced ASCVD risk [hazard ratio [HR], 0.78 (95% CI, 0.65, 0.93) and 0.76 (95% CI, 0.62, 0.93)] among participants with intermediate [20 to <30 ng/mL (50 to <75 nmol/L)] and optimal [≥30 ng/mL (≥75 nmol/L)] 25(OH)D, respectively, but not among those with deficient 25(OH)D (P for interaction = 0.04)., Conclusion: PA is linearly associated with higher 25(OH)D levels in whites. PA and 25(OH)D may have synergistic beneficial effects on ASCVD risk., (Copyright © 2017 by the Endocrine Society)
- Published
- 2017
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