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Aim: To investigate metabolic risk factors (RFs) that accumulated over 20 years related to left ventricular mass index (LVMI), relative wall thickness (RWT) and LV remodelling patterns in participants with versus without early‐onset type 2 diabetes (T2D) or prediabetes (pre‐D). Methods: A total of 287 early‐onset T2D/pre‐D individuals versus 565 sociodemographic‐matched euglycaemic individuals were selected from the Coronary Artery Risk Development in Young Adults (CARDIA) study, years 0‐25. We used the area under the growth curve (AUC) derived from quadratic random‐effects models of four or more repeated measures of RFs (fasting glucose [FG], insulin, triglycerides [TG], low‐density lipoprotein cholesterol, high‐density lipoprotein cholesterol (HDL‐c), total cholesterol (total‐c), blood pressure and body mass index) to estimate the cumulative burden, and their associations with LV outcomes. Results: One standard deviation greater AUC of log (TG) (per 0.48) and HDL‐c (per 13.5 mg/dL) were associated with RWT (β 0.21 and −0.2) in the early‐onset T2D/pre‐D group, but not in the euglycaemia group (β 0.01 and 0.05, P interactions.02 and.03). In both the early‐onset T2D/pre‐D and euglycaemia groups, greater AUCs of log (FG) (per 0.17) and log (insulin) (per 0.43) were associated with higher RWT (β ranges 0.12‐0.24). Greater AUCs of systolic blood pressure (per 10 mmHg) and diastolic blood pressure (per 7.3 mmHg) were associated with higher RWT and LVMI, irrespective of glycaemic status (β ranges 0.17‐0.28). Cumulative TG (odds ratio 3.4, 95% confidence interval: 1.8‐6.3), HDL‐c (0.23, 0.09‐0.59), total‐c (1.9, 1.1‐3.1) and FG (2.2, 1.25‐3.9) were statistically associated with concentric hypertrophy in the T2D/pre‐D group only. Conclusions: Sustained hyperglycaemia and hyperinsulinaemia are associated with RWT, and those individuals with early T2D/pre‐D are potentially at greater risk because of their higher levels of glucose and insulin. Dyslipidaemia was associated with LV structural abnormalities in those individuals with early‐onset T2D/pre‐D. [ABSTRACT FROM AUTHOR]

Background: Life course patterns of change in risk—trajectories—affect health. Objectives: To examine how trajectories of cardiovascular risk factors are associated with pregnancy and birth outcomes. Methods: Data from two cohort studies participating in the International Childhood Cardiovascular Consortium—The Bogalusa Heart Study (BHS; started in 1973, N = 903 for this analysis) and the Cardiovascular Risk in Young Finns Study (YFS; started in 1980, N = 499) were used. Both followed children into adulthood and measured cardiovascular risk factors, including body mass index (BMI), systolic and diastolic blood pressure (SBP/DBP), total, lipoprotein (LDL)‐ and high density lipoprotein (HDL)‐cholesterol and serum triglycerides. Discrete mixture modelling was used to divide each cohort into distinct trajectories according to these risk factors from childhood to early adulthood, and these groups were then used to predict pregnancy outcomes including small for gestational age (SGA; <10th study‐specific percentile of gestational age by sex), preterm birth (PTB; <37 weeks' gestation), hypertensive disorders of pregnancy (HDP) and gestational diabetes mellitus (GDM), with control for age at baseline and at first birth, parity, socioeconomic status, BMI and smoking. Results: The models created more trajectories for BMI, SBP and HDL‐cholesterol in the YFS than in BHS, for which three classes generally seemed to be sufficient to represent the groups in the population across risk factors. In BHS, the association between the higher and flatter DBP trajectory and PTB was aRR 1.77, 95% confidence interval [CI] 1.06, 2.96. In BHS the association between consistent total cholesterol and PTB was aRR 2.16, 95% CI 1.22, 3.85 and in YFS the association between elevated high trajectory and PTB was aRR 3.35, 95% CI 1.28, 8.79. Elevated‐increasing SBP was associated with a higher risk of GH in BHS and increasing or persistent‐obese BMI trajectories were associated with GDM in both cohorts (BHS: aRR 3.51, 95% CI 1.95, 6.30; YFS: aRR 2.61, 95% CI 0.96, 7.08). Conclusions: Trajectories of cardiovascular risk, particularly those that represent a consistent or more rapid worsening of cardiovascular health, are associated with a higher risk of pregnancy complications. [ABSTRACT FROM AUTHOR]

Background: The metabolic changes that ultimately lead to gestational diabetes mellitus (GDM) likely begin before pregnancy. Cannabis use might increase the risk of GDM by increasing appetite or promoting fat deposition and adipogenesis. Objectives: We aimed to assess the association between preconception cannabis use and GDM incidence. Methods: We analysed individual‐level data from eight prospective cohort studies. We identified the first, or index, pregnancy (lasting ≥20 weeks of gestation with GDM status) after cannabis use. In analyses of pooled individual‐level data, we used logistic regression to estimate study‐type‐specific odds ratios (OR) and 95% confidence intervals (CI), adjusting for potential confounders using random effect meta‐analysis to combine study‐type‐specific ORs and 95% CIs. Stratified analyses assessed potential effect modification by preconception tobacco use and pre‐pregnancy body mass index (BMI). Results: Of 17,880 participants with an index pregnancy, 1198 (6.7%) were diagnosed with GDM. Before the index pregnancy, 12.5% of participants used cannabis in the past year. Overall, there was no association between preconception cannabis use in the past year and GDM (OR 0.97, 95% CI 0.79, 1.18). Among participants who never used tobacco, however, those who used cannabis more than weekly had a higher risk of developing GDM than those who did not use cannabis in the past year (OR 2.65, 95% CI 1.15, 6.09). This association was not present among former or current tobacco users. Results were similar across all preconception BMI groups. Conclusions: In this pooled analysis of preconception cohort studies, preconception cannabis use was associated with a higher risk of developing GDM among individuals who never used tobacco but not among individuals who formerly or currently used tobacco. Future studies with more detailed measurements are needed to investigate the influence of preconception cannabis use on pregnancy complications. [ABSTRACT FROM AUTHOR]

Objectives: To understand if pregnancy unmasks previously silent cardiovascular (CV) adverse factors, or initiates lasting injury. Methods: Pre‐pregnancy and during pregnancy CV risk factors (blood pressure, fasting lipids, and glucose) from 296 women belonging to studies in the International Childhood Cardiovascular Cohort (i3C) Consortium, a group of studies assessing the relationship between child and adolescent CV risk factors and adult outcomes, were used. Correlation coefficients between the pre‐ and during pregnancy measures were calculated, and the mean difference between the measures was modeled with adjustment for age, body mass index, race, smoking, and study. Results: Measures were strongly correlated at pre‐ and during‐pregnancy visits (p < 0.01), with r of between 0.30 and 0.55. In most cases, the difference between pre‐pregnancy and during‐pregnancy did not differ significantly from 0 after adjustment for confounders. Stratification by gestational age indicated stronger correlations with measurements obtained during the first and second trimesters than the third. The correlation did not differ by the time elapsed between the pre‐pregnancy and pregnancy visits. Conclusions: Pre‐ and during‐pregnancy CV risk factors are moderately well correlated. This may indicate that susceptible women enter pregnancy with higher risk rather than pregnancy inducing new vascular or metabolic effects. [ABSTRACT FROM AUTHOR]

Background: Preconception health may have intergenerational influences. We have formed the PrePARED (Preconception Period Analysis of Risks and Exposures influencing health and Development) research consortium to address methodological, conceptual, and generalisability gaps in the literature.Objectives: The consortium will investigate the effects of preconception exposures on four sets of outcomes: (1) fertility and miscarriage; (2) pregnancy-related conditions; (3) perinatal and child health; and (4) adult health outcomes.Population: A study is eligible if it has data measured for at least one preconception time point, has a minimum of selected core data, and is open to collaboration and data harmonisation.Design: The included studies are a mix of studies following women or couples intending to conceive, general-health cohorts that cover the reproductive years, and pregnancy/child cohort studies that have been linked with preconception data. The majority of the participating studies are prospective cohorts, but a few are clinical trials or record linkages.Methods: Data analysis will begin with harmonisation of data collected across cohorts. Initial areas of interest include nutrition and obesity; tobacco, marijuana, and other substance use; and cardiovascular risk factors.Preliminary Results: Twenty-three cohorts with data on almost 200 000 women have combined to form this consortium, begun in 2018. Twelve studies are of women or couples actively planning pregnancy, and six are general-population cohorts that cover the reproductive years; the remainder have some other design. The primary focus for four was cardiovascular health, eight was fertility, one was environmental exposures, three was child health, and the remainder general women's health. Among other cohorts assessed for inclusion, the most common reason for ineligibility was lack of prospectively collected preconception data.Conclusions: The consortium will serve as a resource for research in many subject areas related to preconception health, with implications for science, practice, and policy. [ABSTRACT FROM AUTHOR]

ABSTRACT BACKGROUND Adverse birth outcomes are more common among adolescent versus adult mothers, but little is known about school-based services that may improve birth outcomes in this group. METHODS Data from Waves I and IV of the National Longitudinal Study of Adolescent Health were analyzed. Girls and women who gave birth to singleton live infants after Wave I and before age 20, were still in secondary school while pregnant, and had complete data (N = 402) were included. Mothers reported infants' birthweight and gestational age. School administrators reported whether family planning counseling, diagnostic screening (including sexually transmitted diseases [ STDs]), STD treatment, and prenatal/postpartum health care were provided on-site at school at Wave I. Multilevel models adjusted for individual and school characteristics were conducted. RESULTS Few schools offered reproductive health care services on-site. In multilevel analyses, availability of family planning counseling (Est. β = 0.21, 95% confidence interval [ CI] 0.04-0.38 p < 0.05) and prenatal/postpartum health care (Est. β = 0.21, 95% CI 0.02-0.40 p < 0.05) were significantly associated with increased infant birthweight. No services examined were significantly associated with increased gestational age. CONCLUSIONS Some school-based reproductive health services may improve subsequent birth outcomes among adolescent mothers. Future analyses should examine the mechanisms by which services impact birth outcomes. [ABSTRACT FROM AUTHOR]

Background Latinas have high overall breastfeeding initiation rates, yet Puerto Ricans have among the lowest exclusive breastfeeding rates. This study sought to determine if acculturation was associated with intent to breastfeed in a predominantly Puerto Rican population. Methods A cohort of Latina women were enrolled in Proyecto Buena Salud, and provided information on infant feeding intent ( n = 1,323). Acculturation was assessed via the Psychological Acculturation Scale ( PAS), language preference, and generation in the United States. Results Increasing acculturation as measured by English language preference ( aOR 0.61 [95% CI 0.42-0.88]) and second or third generation in the United States ( aOR 0.70 [95% CI 0.52-0.95)] was inversely associated with odds of intending to exclusively breastfeed. Similarly, women with higher levels of acculturation as measured by the PAS ( aOR 0.67 [95% CI 0.45-0.99]), English language preference ( aOR 0.48 [95% CI 0.33-0.70]) and second or third generation in the United States ( aOR 0.42 [95% CI 0.31-0.58]) were less likely to report intent to combination feed as compared with women with lower acculturation. Conclusions Acculturation was inversely associated with intent to exclusively breastfeed and intent to combination feed in this predominantly Puerto Rican sample. [ABSTRACT FROM AUTHOR]

In the article, the author discusses the prevalence of Zika virus disease in children in Colombia. Also cited are the report by the U.S. Centers for Disease Control and Prevention (CDC) on the risk of Zika virus infection in girls and boys, the neurological complications from the infection, as well as the cases of chikungunya, meningitis, and encephalitis.

Nurses working or living near a community disaster have the opportunity to study health-related consequences to disaster or disaster recovery. In such a situation, the researchers need to deal with the conceptual and methodological issues unique to postdisaster research and know what resources are available to guide them, even if they have no specialized training or previous experience in disaster research. The purpose of this article is to review issues and challenges associated with conducting postdisaster research and encourage nurses to seek resources and seize opportunities to conduct research should the situation arise. Current disaster studies and the authors' personal experiences conducting maternal-child research in post-Katrina New Orleans (2005-2013) provide real-life examples of how health professionals and nurses faced the challenges of doing postdisaster research. After catastrophic events, nurses need to step forward to conduct disaster research that informs and improves future disaster planning and healthcare responses. [ABSTRACT FROM AUTHOR]

Background Large disparities in adverse birth outcomes persist between African American and white women in the US despite decades of research, policy, and public health intervention. Allostatic load is an index of dysregulation across multiple physiologic systems that results from chronic exposure to stress in the physical and socio-cultural environment which may lead to earlier health deterioration among racially or socio-economically disadvantaged groups. The purpose of this investigation was to examine relationships between maternal biomarkers of allostatic load prior to conception and the occurrence of preterm birth and small for gestational age infants among a cohort of white and African American women participants in the Bogalusa Heart Study. Methods Data from women participants were linked to the birth record of their first-born infant. Principal components analysis was used to construct an index of allostatic load as a summary of the weighted contribution of nine biomarkers representing three physiologic domains: cardiovascular, metabolic, and immune systems. A series of Poisson regression models based on samples ranging from 1467 to 375 women were used to examine race, individual biomarkers of allostatic load, and quartiles of the allostatic load index as predictors of preterm birth ( n = 150, 10.2%) and small for gestational age ( n = 135, 9.2%). Results There was no evidence of a relationship between maternal preconception allostatic load and either adverse birth outcome in this sample. Further, there was no evidence of effect modification of by race or education. Conclusions More work is needed in understanding the biological mechanisms linking social inequities to racial disparities in adverse birth outcomes. [ABSTRACT FROM AUTHOR]

Stress has been proposed as a cause of preterm birth (PTB) and small-for-gestational age (SGA), but stress does not have the same effects on all women. It may be that a woman's reaction to stress relates to her pregnancy health, and previous studies indicate that higher reactivity is associated with reduced birthweight and gestational age. The objective of this study was to examine the relationship between pre-pregnancy cardiovascular reactivity to stress and pregnancy outcome. The sample included 917 women in the Coronary Artery Risk Development in Young Adults Study who had cardiovascular reactivity measured in 1987-88 and at least one subsequent singleton livebirth within an 18-year period. Cardiovascular reactivity was measured using a video game, star tracing and cold pressor test. Gestational age and birthweight were based on the women's self-report, with PTB defined as birth <37 weeks' gestation and SGA as weight <10th percentile for gestational age. Linear and Poisson regression and generalised estimating equations were used to model the relationship between reactivity to stress and birth outcomes with control for confounders. Few associations were seen between reactivity and pregnancy outcomes. Higher pre-pregnancy diastolic blood pressure (adjusted relative risk 1.14; 95% confidence interval [CI] 0.98, 1.34) and mean arterial pressure reactivity (1.15; 0.98, 1.36) were associated with risk of PTB at first pregnancy, while SGA was associated with lower systolic blood pressure reactivity (0.76; 0.60, 0.95). No associations were seen with other measures of reactivity. Contrary to hypothesis, the association between heart rate reactivity and PTB in first pregnancy was stronger in whites (adjusted relative risk 1.39; 1.03, 1.88) than in blacks (1.00; 0.83, 1.20; P for interaction = 0.08). Similar results were found for mean arterial pressure. No strong associations were found between higher pre-pregnancy stress reactivity and SGA or PTB, and stress reactivity did not have a stronger association with birth outcomes in blacks than whites. [ABSTRACT FROM AUTHOR]

We review the literature on the effects of Hurricane Katrina on perinatal health, and providing data from our own research on pregnant and postpartum women. After Katrina, obstetric, prenatal, and neonatal care was compromised in the short term, but increases in adverse birth outcomes such as preterm birth, low birthweight, and maternal complications were mostly limited to highly exposed women. Both pregnant and postpartum women had rates of post-traumatic stress disorder similar to, or lower than, others exposed to Katrina, and rates of depression similar to other pregnant and postpartum populations. Health behaviors, such as smoking and breastfeeding, may have been somewhat negatively affected by the disaster, whereas effects on nutrition were likely associated with limited time, money, and food choices, and indicated by both weight gain and loss. We conclude that, with a few specific exceptions, postdisaster concerns and health outcomes for pregnant and postpartum women were similar to those of other people exposed to Hurricane Katrina. In such situations, disaster planners and researchers should focus on providing care and support for the normal concerns of the peripartum period, such as breastfeeding, depression, and smoking cessation. Contraception needs to be available for those who do not want to become pregnant. Although additional physical and mental health care needs to be provided for the most severely exposed women and their babies, many women are capable of surviving and thriving in postdisaster environments. [ABSTRACT FROM AUTHOR]

No genes have been identified that explain a major proportion of the heritability of most health outcomes [1]. 3 Shen Y, Zhang H, Jiang Y, Mzayek F, Arshad H, Karmaus W. Maternal birth weight and BMI mediate the transgenerational effect of grand-maternal BMI on grandchild's birth weight. [Extracted from the article]

The article relates an author's view on the impact of Hurricane Katrina on the health of pregnant women and their babies in the U.S. The first priority of disaster relief agencies is to provide obstetrical and neonatal care. It was believed that access to care for pregnant women is actually improved after a disaster.

. [ABSTRACT FROM AUTHOR]

A commentary is presented on epidemiological studies on Zika virus and pregnancy, particularly the link of the virus to microcephaly and other congenital brain abnormalities. Topics covered include experimental design of trials, causality evidence from ecological studies and how a prospective cohort design would establish temporality and reduce diagnostic biases.

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