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PurposeWe aimed to estimate the level and trend of plasma cholesterol and raised total cholesterol (TC > 200 mg/dl) prevalence at national and subnational level of Iran.MethodsNine national surveys and 27 studies, encompassing 3,505 unique points on over 500,000 adults, aged > 25 years with a report of laboratory measurement of TC were found. Age-spatio-temporal model and Gaussian Process Regression were used to estimate mean TC for each sex, 5-year age groups, and 31 provinces from 1990 to 2016.ResultsAt national level, age-standardized prevalence of TC > 200 mg/dL has decreased from 57·2%(53·3-61·1) to 22·4%(20·5-24·3) in women and 53·2%(49·1-57·3) to 18·0%(16·4-19·6) in men. TC distribution presented a condensation between 170-200 mg/dL. At subnational level, decreasing and converging patterns of raised TC prevalence were detected.ConclusionThe decrease in raised TC is likely the result of statin widespread use, food industry improvements, and the expanded primary health care.Supplementary informationThe online version contains supplementary material available at 10.1007/s40200-022-01052-w.

BackgroundThe burden of chronic kidney disease (CKD) is increasing globally in particular in fast emerging economies such as Iran. Population-based studies on prevalence of CKD in Iran are scarce. The objective of the current study was to explore the prevalence and determinants of CKD in the setting of Golestan Cohort Study (GCS), the largest prospective cohort in the Middle East.MethodsIn this observational study, 11,409 participants enrolled in the second phase of GCS were included. Sex, age, literacy, residence, anthropometric measurements, smoking, opium use, self-reported history of cardiovascular diseases (heart disease and/or stroke), hypertension, diabetes, and lipid profile were the predictors of interest. The outcomes of interest were eGFR and CKD defined as eGFR< 60 ml/min/1.73m2.ResultsMean (SD) of GFR was 70.0 ± 14.7 ml/min/1.73m2 among all participants, 68.2 ± 14.2 among women, and 72.0 ± 15.0 among men. Prevalence of CKD was 23.7% (26.6% in women, 20.6% in men). The prevalence of CKD stages 3a, 3b, 4, and 5 were 20.0%, 3.3%, 0.4% and 0.1%, respectively. Female sex, older age, urban residence, history of CVD, hypertension or diabetes, larger body mass and surrogates of body fat and opium use were all associated with CKD. Opium had a significant positive association with CKD in adjusted model. All anthropometric measurements had positive linear association with CKD. Being literate had inverse association. Sex had significant interaction with anthropometric indices, with higher odds ratios among men compared with women. A significantly high association was observed between the rate of change in waist circumference and systolic blood pressure with risk of CKD.ConclusionOne in four people in this cohort had low eGFR. Obesity and overweight, diabetes, hypertension, and dyslipidemia are major risk factors for CKD. Halting the increase in waist circumference and blood pressure may be as important as reducing the current levels.

Background: Since 1990, maternal mortality ratio (MMR) has significantly decreased in Iran. However, estimates for mortality and morbidity by cause at subnational scale are not available. Methods: This study is part of the Global Burden of Diseases study (GBD) 2019. Here we report maternal mortality and morbidity by age and cause across 31 provinces of Iran from 1990 to 2019. Results: Since 1990, MMR declined from 44.5 (95% UI: 38.6-50.1) to 15.9 (14.7--17.3) per 100 000 live births in Iran. In 1990 MMR ranged from 18.5 (11.2--26.4) to 76.9 (38.4--114.7) per 100 000 live births across provinces. Respective figures for 2019 were 7.1 (5.2--9.3) to 34.0 (25.1--44.7) per 100 000 live births. In 2019, MMR was higher in young women (aged 10 to 14) and older women (aged 45 or more). Percentages of deaths under 25 years was 24.8% in 1990 and 16.0% in 2019. There was remarkable decline in years lost due to premature death (YLL) rates from 1990 to 2019. While the decline was modest for years lived with disability (YLD) rates. Indirect maternal deaths and other maternal deaths ranked first or second in almost all provinces. Ultimately, there was an evident decrease in MMR along with increase in socio-demographic Index (SDI) from 1990 to 2019 in all provinces and an evident convergence across provinces. Conclusion: MMR has declined to levels much lower than Sustainable Development Goals in all provinces. Although there was a convergence in trends, there are still disparities across provinces. The decline in disabilities caused by maternal disorders is not as significant as mortality, which needs further actions. [ABSTRACT FROM AUTHOR]

Background: Since 1990, neonatal, infant, and child mortality has substantially decreased in Iran. However, estimates for mortality by cause at subnational scale are not available. Methods: This study is part of the Global Burden of Diseases, Injuries, and Risk Factors study (GBD) 2019. Here we report the number and rates of neonate, infant, and child deaths by cause across provinces of Iran from 1990 to 2019. Results: Between 1990 and 2019, the neonatal mortality rate per 1000 live births decreased from 31.8 (95% UI: 28.1--35.5) to 6.8 (6.1--7.4). The child mortality rates decreased from 71.2 (63.6--79.1) to 11.1 (10.2--12.0) per 1000 live births. Mortality rates among neonates per 1000 live births ranged from 3.1 (2.6--3.7) to 10.0 (9.2--10.8) across provinces in 2019. Child mortality rate per 1000 live births ranged from 5.5 (4.6--6.5) to 17.9 (16.4--19.4) across provinces in 2019. Neonatal disorders, congenital birth defects, and lower respiratory infections were the three main causes of mortality in almost all provinces of Iran. The majority of neonatal disorders were due to neonatal preterm birth and neonatal asphyxia, trauma, and infections. The trends of mortality across provinces from 1990 to 2019 were converging and decreased along with increase in sociodemographic index (SDI). Conclusions: All provinces achieved the Sustainable Development Goal 3.2 of neonatal mortality less than 12 and child mortality less than 25 per 1000 live births. However, disparities still exist across provinces, specifically in low-SDI provinces. [ABSTRACT FROM AUTHOR]

Background: Raised blood pressure is a serious risk factor for several non-communicable diseases (NCDs) in Iran. In this study, we aimed to estimate the mean of systolic blood pressure (SBP) and diastolic blood pressure (DBP) and subsequently, the prevalence of hypertension by sex, age, province, and year in Iran. Methods: We conducted a systematic review using PubMed, Web of Science, and Scopus databases through December 2017. We also used individual level data from eight national surveys, aggregated data from seven subnational population-based studies, and extracted data reported in 52 published studies. We used a two-stage model including Age-Spatio-Temporal and Gaussian process regression (GPR) to estimate mean systolic and diastolic blood pressure and used a crosswalk model to estimate the prevalence of hypertension by sex, age, province, and year. Results: The number of hypertensive adults increased in Iran from 1.8 million (882 thousand in women) in 1990 to 13.6 million (7.2 million in women) in 2016. The national age-standardized prevalence of hypertension increased from 8.7% (7.8--9.7) to 28.8% (27.7--30.0) in women and from 8.0% (7.2--8.9) to 24.2% (23.1--25.3) in men from 1990 to 2016. Mean systolic and diastolic blood pressures show a similar increasing trend. Conclusion: During the past 27 years, we observed an increase in the age-standardized prevalence and mean levels of blood pressure. If the current trend in levels of blood pressure and prevalence of hypertension continue in the coming years, Iran will not achieve the sixth target of the Global Action Plan by 2020 and the Sustainable Development Goals (SDGs) by 2030. Keywords: Epidemiology, Hypertension, Iran, Public Health [ABSTRACT FROM AUTHOR]

Background: Little is known about secondary prevention of cardiovascular diseases, using cardio-protective drugs, in the community-level, especially in low- and middle-income countries. We aimed to assess main drug use and its predictors in Northeast of Iran. Methods: This is a cross-sectional analysis on the Golestan Cohort Study data (2004-2008) with 50 045 participants. We assessed drug use in those with a history of ischemic heart disease (IHD) or stroke, recorded by face-to-face interviews. We explored drug use predictors (i.e., age, gender, wealth, education, residency, smoking, body mass index, physical activity, hypertension, and diabetes) through multivariable logistic regression. Results: A total of 3371 (6.7%) participants (56.7 ± 9.0 years, 58.1% female) reported a history of IHD, stroke or both. Median duration since diagnosis was 3.14 years (IQR: 1.25-6.30). Rates of using anti-platelets, statins, angiotensin-converting enzyme inhibitors or angiotensin-receptor blockers, and beta-blockers were 28.8% (95% CI: 27.3-30.3), 5.4 (4.7-6.2), 15.7 (14.5-17.0), and 40.6 (38.9-42.3), respectively. About 43% (41 - 45) of patients did not use any protective drugs. Use of ≥ three drugs was only 7.3% (6.6--8.2). Indicators of ≥1 drug use were: older age (OR for ≥60 vs. <50: 1.37), high wealth score (fifth vs first quintile: 1.60), literacy (1.56), city dwelling (1.32), body mass index (<18.5 and ≥30 vs. 25-29: 0.55 and 1.25, respectively), physical activity (third vs. first tertile: 0.64), hypertension (3.47), and diabetes (1.29); (all P < 0.05). Conclusion: Drug use after IHD or stroke is low in Northeast of Iran. Comprehensive efforts to promote secondary prevention are urgently needed. [ABSTRACT FROM AUTHOR]

Background: Summary measures of health are essential in making estimates of health status that are comparable across time and place. They can be used for assessing the performance of health systems, informing effective policy making, and monitoring the progress of nations toward achievement of sustainable development goals. The Global Burden of Diseases, Injuries, and Risk Factors Study 2015 (GBD 2015) provides disability-adjusted life-years (DALYs) and healthy life expectancy (HALE) as main summary measures of health. We assessed the trends of health status in Iran and 15 neighboring countries using these summary measures. Methods: \Ne used the results of GBD 2015 to present the levels and trends of DALYs, life expectancy (LE), and HALE in Iran and its 15 neighboring countries from 1990 to 2015. For each country, we assessed the ratio of observed levels of DALYs and HALE to those expected based on socio-demographic index (SDI), an indicator composed of measures of total fertility rate, income per capita, and average years of schooling. Results: All-age numbers of DALYs reached over 19 million years in Iran in 2015. The all-age number of DALYs has remained stable during the past two decades in Iran, despite the decreasing trends in all-age and age-standardized rates. The all-cause DALY rates decreased from 47,200 in 1990 to 28,400 per 100,000 in 2015. The share of non-communicable diseases in DALYs increased in Iran (from 42% to 74%) and all of its neighbors between 1990 and 2015; the pattern of change is similar in almost all 16 countries. The DALY rates for NCDs and injuries in Iran were higher than global rates and the average rate in High Middle SDI countries, while those for communicable, maternal, neonatal, and nutritional disorders were much lower in Iran. Among men, cardiovascular diseases ranked first in all countries of the region except for Bahrain. Among women, they ranked first in 13 countries. Life expectancy and HALE show a consistent increase in all countries. Still, there are dissimilarities indicating a generally low LE and HALE in Afghanistan and Pakistan and high expectancy in Qatar, Kuwait, and Saudi Arabia. Iran ranked 11th in terms of LE at birth and 12th in terms of HALE at birth in 1990 which improved to 9th for both metrics in 2015. Turkey and Iran had the highest increase in LE and HALE from 1990 to 2015 while the lowest increase was observed in Armenia, Pakistan, Kuwait, Kazakhstan, Russia, and Iraq. Conclusions: The levels and trends in causes of DALYs, life expectancy, and HALE generally show similarities between the 16 countries, although differences exist. The differences observed between countries can be attributed to a myriad of determinants, including social, cultural, ethnic, religious, political, economic, and environmental factors as well as the performance of the health system. Investigating the differences between countries can inform more effective health policy and resource allocation. Concerted efforts at national and regional levels are required to tackle the emerging burden of non-communicable diseases and injuries in Iran and its neighbors. [ABSTRACT FROM AUTHOR]

Background: High blood pressure is the second most important risk factor of cardiovascular diseases (CVDs) in Iran. It is imperative to estimate the burden of CVDs that can be averted if high blood pressure is controlled at the population level. The aim of the current study was to estimate the avertable CVD mortality in the setting of Golestan Cohort Study (GCS). Methods: Over 50,000 participants were recruited and followed for a median of 7 years. The exposures of interest in this study were non-optimal systolic blood pressure (SBP) and hypertension measured at baseline. Deaths by cause have been precisely recorded. The Population Attributable Fraction (PAF) of deaths and Years of Life Lost (YLLs) due to CVDs attributable to exposures of interest were calculated. Results: Overall, 223 deaths due to ischemic heart disease (IHD), 207 deaths due to cerebrovascular accidents (CVA), and 460 deaths due to all CVDs could be averted if the SBP of all subjects in the study were optimal. Similarly, 5,560 YLLs due to IHD, 4,771 YLLs due to CVA, and 11,135 YLLs due to CVDs could be prevented if SBP were optimal. In all age groups, the avertable deaths and YLLs were higher due to IHD compared with CVA. Deaths and YLLs attributable to non-optimal SBP in women were less than men Conclusions: A very large proportion of CVD deaths can be averted if blood pressure is controlled in Iran. Effective interventions in primary and secondary health care setting are mandatory to be implemented as early as possible. [ABSTRACT FROM AUTHOR]

Background: The Gastro-Esophageal Malignancies in Northern Iran (GEMINI) research project is an example of recent progress in health research in Iran. The original aim of this project was to identify etiologic factors and prevention measures for upper gastrointestinal cancers in Northern provinces of Iran, but its achievements have gone much beyond this initial goal. Methods: GEMINI consists of several projects including cancer registries, pilot studies, case-control studies, and the Golestan Cohort Study. GEMINI has been conducted through extensive collaborations between the Digestive Disease Research Center of Tehran University of Medical Sciences with other domestic and international health organizations. The achievements of GEMINI include producing new knowledge, introducing new research methods, developing and expanding health research and health care infrastructures, investing in , human resources, and increasing the awareness and knowledge of policy makers and officials at all levels about the importance of chronic diseases in Iran's health priorities. Conclusions: The success of GEMINI reveals the feasibility of large-scale health research studies in developing countries and serves as , a successful model not only for health research in Iran, but also for similar research studies in other developing nations. [ABSTRACT FROM AUTHOR]

Background: Drawing on the results of the country-level Global Burden of Diseases, Injuries, and Risk Factors 2010 Study, we attempted to investigate the drivers of change in the healthcare system in terms of mortality and morbidity due to diseases, injuries, and risk factors for the two decades from 1990 to 2010. Methods: We decomposed trends in mortality, cause of death, years of life lost due to disability, disability-adjusted life years (DALYs), life expectancy, health-adjusted life expectancy, and risk factors into the contribution of total increase in population size, aging of the population, and changes in age-specific and sex-specific rates. Results: We observed a decrease in age-specific mortality rate for both sexes, with a higher rate for women. The ranking of causes of death and their corresponding number of years of life lost remained unchanged between 1990 and 2010. However, the percentages of change indicate patterns of reduction for most causes, such as ischemic and hemorrhagic stroke, hypertensive heart disease, stomach cancer, lower respiratory infections, and congenital anomalies. The number of years lost due to disability caused by diabetes and drug use disorders has significantly increased in the last two decades. Major causes of DALYs, such as injuries, interpersonal violence, and suicide, showed increasing trends, while rates of communicable diseases, neonatal disorders, and nutritional deficiencies have declined significantly. Life expectancy and health-adjusted life expectancy increased for both sexes by approximately 7 years, with the highest rate of increase pertaining to females over the age 30. Conclusions: Time trend information presented in this paper can be used to evaluate problems and policies specific to medical conditions or risk factors. Despite recent improvements, implementing policies to reduce the number of deaths and years of life lost due to road traffic injury remains the highest priority for Iranian policymakers. Immediate action by Iranian researchers is required to match Iran's decreasing mortality rate due to liver and stomach cancers to a rate comparable to the global level. Prevention and treatment plans for mental disorders, such as major depressive disorder, anxiety disorder, and particularly drug use disorders, should be considered in reforms of the health, education, and judiciary systems in Iran. [ABSTRACT FROM AUTHOR]

Background: There is limited data on the natural history of autoimmune hepatitis (AIH) and on the long-term follow-up of AIH patients who have been referred for regular medical attention. Objectives: We evaluated the clinical presentation and natural history of AIH in a large cohort of type I AIH patients from Iran. Patients and Methods: Between 1997 and 2008, 102 patients were enrolled in the study. Patients were diagnosed using the International Autoimmune Hepatitis Group criteria and were followed up for an average of 60 months. Clinical and biochemical data were gathered from all the patients at both the beginning and the end of the follow-up period. Liver biopsy was performed in all patients before treatment, and the biopsies were performed in 28 patients after treatment. Results: Biochemical remission was achieved by 80 (79.4%) patients. Of these, 53 (66.5%) showed near-normal liver histology or liver function test results and sonogram. The remaining 27 (33.5%) patients also achieved clinical and biochemical remission, but developed compensated cirrhosis. After a period of remission, 24 patients (32.5%) relapsed. Among the 22 (21.6%) patients who showed ultimate treatment failure, 6 underwent orthotopic liver transplantation and 3 died of liver failure while awaiting a transplant. Sixteen (72.7%) of the 22 patients who did not respond to therapy were non-compliant with medications and had irregular follow-up. The overall 10-year survival rate in the cohort was 96%. Conclusions: Long-term survival in AIH patients is very good. Prompt diagnosis and appropriate first-line and salvage therapy that includes close follow-up will make liver transplantation a rare necessity in the treatment of this disease. [ABSTRACT FROM AUTHOR]

Background: In developing countries like Iran, the burden of obesity increases through comorbid diseases. We estimated the mean body mass index (BMI) and prevalence of overweight/obesity by components of sex, age, province, and year in Iran from 1990 to 2016. Methods: Through a comprehensive systematic review, all relevant data sources pooled results with individual level national and sub-national population-based studies. Two stages of age-spatio-temporal modeling and Gaussian process regression were used to estimate mean BMI, followed by estimation of obesity and overweight prevalence through the crosswalk modeling. Results: In 2016, the age-standardized mean BMI was 27.9 (27.2-28.7) kg/m² in women and 25.9 (25.2-26.5) kg/m² in men. At the same time, the prevalence rates of overweight and obesity were 71.7% (67.9-75.8), and 36.8% (34.1-39.7) in females, and 57.1% (53.7-60.6), and 18.4% (16.9-20) in men. This shows a considerable increase from 1990 when the figures were respectively 24.4 (23.3-25.5), 36.6% (32.2-41.5), and 8.2% (95% UI: 6.9-9.7) in women, and 23.5 (22.5-24.5), 30% (26.4-34), and 4.7% (4.0-5.5) in men, with 66% attributed to population growth. Conclusion: Considering the increasing trends of BMI, Sustainable Development Goals (SDGs) seem far out of reach. We need to call for action, aiming for both weight loss strategies and controlling the comorbidities that mediate high BMI risk. [ABSTRACT FROM AUTHOR]

The Guilan cohort study was conducted on 10 520 men and women between 35-70 years of age in Guilan province and Some'e Sara county, northern Iran, from October 8, 2014 to January 20, 2017 as part of the Prospective Epidemiological Research Studies in Iran (PERSIAN). Eligible participants were contacted over the phone and were invited to refer to the cohort center. Demographic information was inquired during the phone call. Upon arrival of participants at the cohort center, consent forms were filled out and additional data on demographic characteristics, socio-economic status, employment, fuel status and location, lifestyle habits, and sleep and food habits were obtained. Blood pressure and anthropometric indices were measured. Finally, biological samples were collected. There was a participation rate of 83.2%, and a 15-year active follow-up was planned for all of the participants. The results showed that 53.5% of the participants were female and 56.1% of the participants were rural residents. A total of 1738 participants (16.5%) were illiterate. Of the total cohort participants, 4543 (43.2%) were hypertensive. Hypertension was defined as a systolic blood pressure ≥140 mm Hg or a diastolic blood pressure ≥90 mm Hg, or a prior diagnosis of hypertension by a health professional, or taking antihypertensive medications. Approximately one-third of participants (n = 3435 or 32.7%) were obese, and most were females (n = 2647, 77.1%). Prevalence of diabetes (defined as fasting blood sugar equal or higher than 126 mg/dL or history of diagnosis with diabetes or taking glucose lowering medication) was 24.1% (20.2 % in males and 27.3% in females). We also obtained laboratory samples for basic and genetic scientific research. According to laboratory evaluations, 3,585 (34.1%) of the participants had hematuria, and most of them were women (n = 2151 or 60%). The preliminary results of our study demonstrate a high prevalence of metabolic risk factors for Non-Communicable Diseases and mainly cardiovascular diseases in Guilan province, which merit detailed investigation of their intricate relationships. The population-based design of the study as well as its large sample size were the main strengths of our cohort study that makes these investigations feasible. Researchers interested in using the information are invited to visit the following websites: http://www.gums. ac.ir/cohort and http://persiancohort.com/. [ABSTRACT FROM AUTHOR]

Background: The Global Burden of Disease (GBD) Study provides estimates of deaths, years of life lost (YLL), years of life lived with disability (YLD), and disability-adjusted life years (DALYs) due to 249 causes of death, 315 diseases and injuries, and 79 behavioral, environmental, occupational, and metabolic risk factors in 195 countries, territories, and regions by sex and 20 age categories in 195 countries and regions since 1990. In this study, we aimed to present the burden of road traffic injuries (RTIs) in Iran and 15 surrounding countries in 1990-2016. Methods: The standard Cause of Death Ensemble modeling (CODEm) is used to estimate deaths due to all causes of injury by age, sex, country and year. A range of 27 causes is used for estimating non-fatal health outcomes based on inpatient and outpatient datasets using DisMod-MR 2.0. Disability-adjusted life years (DALYs) estimate quantify the total burden of years lost due to premature death or disability and was computed by summing the fatal burden and non-fatal burden associated with a cause (i.e., YLL+YLD). Results: In 2016, age-standardized transport injuries in Iran accounted for 35.6 (UI: 29.64-43.44) deaths per 100 000 compared to 60.8 (UI: 51.04-72.49) in 1990. Transport injury became the fourth leading cause of death in Iran in 2016, up from the 5th leading cause of death in 1990. The burden of RTIs was mainly caused by motor vehicles and motorcycles and mostly affected the economically productive age groups (15-49), males and children, especially those at school age. Afghanistan with 59.14 deaths (52.09-66.8) and UAE with 53.71 deaths (36.59-72.77) had the largest transport injury death rates per 100 000. From 1990 to 2016, Iran had -2.06 annual percent change in transport death rates. The lowest annual percent change is reported for Turkmenistan at -3.43. While Pakistan, UAE and Qatar had the highest annual percent change in transport injury. Across all countries, the observed-to-expected ratios for transport injury death rates varied considerably in 2016.The UAE had the largest age-standardized ratios of observed-to-expected rate (2.93), followed by Oman (2.39), Saudi Arabia (2.23), Afghanistan (2.04) and Iran (1.95). Conclusions: RTIs continue to be a public health burden in Iran and its neighboring countries, even though, there is evidence for decline in RTIs across all countries except Pakistan. The most frequent sub-causes of death and injury are the motor vehicle, motorcycle, and pedestrian injuries. The most vulnerable road users are children and young adults. [ABSTRACT FROM AUTHOR]

Background: High blood pressure is an important risk factor for all-cause mortality and cardiovascular mortality and morbidity among Iranians. We aimed to estimate its prevalence, correlates, and its rate of awareness, treatment, and control in South of Iran. Methods: The Pars Cohort Study (PCS) was launched in a district of Fars province. All residents between 40 and 75 years old in the district were recruited from 2012 to 2014. Hypertension was defined as either systolic/diastolic blood pressure ≥ 140/90 mm Hg or taking medications. Logistic regression was used to identify the correlates of hypertension and awareness and its treatment and control. A total of 9264 participants were recruited. Of the total participants, 46.2% were men. The mean age was 52.6 years (SD: 9.7). Results: Prevalence of hypertension was 26.9%. Of the total 2489 hypertensives, 49.6% were aware and 55.7% were under treatment. Blood pressure was controlled in 69.2% of treated hypertensives. In the adjusted model, female sex and history of cardiovascular disease (CVD) were positively associated with having hypertension, higher awareness, and better treatment and control. Older age, being overweight or obese, and having a history of diabetes were also positively associated with having hypertension and higher awareness and treatment; however, being overweight or obese was associated with poorer hypertension control. Older age and having a history of diabetes did not show a statistically significant association with control. Conclusion: Being underweight and higher physical activity were inversely associated with having hypertension but were not associated with awareness, treatment, or control. Prevalence of hypertension is high but the rates of awareness, treatment, and control are not adequate. [ABSTRACT FROM AUTHOR]

Background: Due to significant achievements in reducing mortality and increasing life expectancy, the issue of disability from diseases and injuries, and their related interventions, has become one of the most important concerns of health-related research. Methods: Using data obtained from the GBD 2015 study, the present report provides prevalence and years lived with disability (YLDs) of 310 diseases and injuries by sex and age in Iran and neighboring countries over the period 1990-2015. Age-standardized rates of all causes of YLDs are presented for both males and females in 16 countries for 1990 and 2015. Wfe present the percentage of total YLDs for 21 categories of diseases and injuries, the percentage of YLDs for age groups, as well as the ranking of the most prevalent causes and YLDs from the top 50 diseases and injuries in Iran. Results: In 2015, the burden of 310 diseases and injuries among the Iranian population was responsible for 8,357,878 loss of all-age total years, which is equal to 10.58% of total years lived per year. This differs from the neighboring countries, as it ranges from 9.05% in Turkmenistan to 13.36% in Russia. During the past 25 years, a remarkable decrease was observed in all-cause YLD rates in all 16 countries. Meanwhile, in all countries, the age-standardized rate of all causes of YLDs was higher in females than males. Conclusion: Based on our findings, one of the remarkable changes in NCDs observed among the studied age groups was increased rate of YLDs from mental disorders, which was replaced by musculoskeletal disorders in older age groups in 2015. [ABSTRACT FROM AUTHOR]

Background: Iran and its neighboring countries represent four world regions with unique cultures and geography. Skin diseases span a wide diversity of etiologies including infectious, inflammatory, autoimmune, vascular, neurogenic, and oncologic. The Global Burden of Disease Study (GBD) 2015 measures the burden from skin diseases in 195 countries. Methods: Epidemiologic data were collected from literature review, survey data, and hospital inpatient/outpatient claims data. These raw data entered modeling using a Bayesian meta-regression tool, DisMod MR-2.1, which yielded prevalence estimates by age/sex/location/ year. Prevalence estimateswere combined with disability weights to yield years lived with disability (YLDs). YLDs are combined with years of life lost (YLLs), from mortality estimates, to yield disability-adjusted life years (DALYs). DALYs were obtained for 16 skin conditions and both sexes in Iran and 15 surrounding countries. The sociodemographic index (SDI) for each country was also correlated with skin disease DALY rate using the Pearson coefficient (r) with two-tailed p-value. Results: There was no significant correlation between individual skin diseases and SDI. Acne and dermatitis caused the greatest burden and BCC the lowestburden ofskin diseases in Iran and the other15countries. SCC and BCCwere responsible forthe largestdiscrepancy by sex, with higher burden in males compared to females. Conclusion: Skin diseases, particularly dermatitis and acne, cause considerable burden in Iran and surrounding regions. Objective and transparentepidemiologic data such asGBD hasthe potential to inform and impactmanyfacetsofhealthcare, research prioritization, public policy, and international partnerships. [ABSTRACT FROM AUTHOR]

Background: Opium is one of the most common substances used worldwide with variable epidemiologic features in different regions. This study was performed in southern Iran, to find the epidemiology of opium use and its association with different factors and diseases. Methods: This cross-sectional study was performed on baseline data extracted from Pars Cohort Study performed in Valashahr, a rural area in southern Iran. For any subject, information was collected about demographic factors, some common diseases including heart disease, stroke and hypertension and the state of using opium, other substances and cigarettes. Results: There were 4276 males and 4988 females, with a mean age of 52.6 ± 9.7 years of whom 8.4% reported opium use (17.3% of males and 0.7% of females). In men, the history of stroke and heart disease were significantly more common in opium users (12.6% vs. 8.8%, P = 0.001 and 2.8% vs. 1.5%, P = 0.01, respectively) while the history of hypertension was significantly more common in non-opium users (7.8% vs. 10.3%, P = 0.04). Younger age, male gender, being non-married and positive history of joint pain, cigarette smoking and alcohol consumption were the factors associated with opium use. Conclusion: Opium use is common in non-married men who have a positive history of cigarette smoking and alcohol consumption in the rural population of southern Iran. It is associated with increased risk of heart disease and stroke and decreased risk of hypertension in males. Global interventional and preventive measures are required to control this complicated social problem. [ABSTRACT FROM AUTHOR]

BACKGROUND: Worldwide, injuries are a major public health concern and make a considerable contribution to the disease burden. The present study is a component of the National and Subnational Burden of Diseases, Injuries, and Risk Factors from 1990 to 2013 (NASBOD) study in Iran, which was designed to investigate the burden of most important injuries (road traffic injuries, falls, burns, poisonings and drownings) at the national and sub-national levels in Iran. In this paper we explain definitions, organization, injuries selection process, data sources, data gathering methods, and data analyses of the national and sub-national burden of injuries study in Iran. METHODS: The burden of most important injuries in current metric of DALYs at the national and sub-national levels in Iran over 1990-2013 will be estimated through comprehensive reviews of either published or national data sources. Statistical modeling will be used to impute the missing data on the burden of selected important injuries for each district-year. CONCLUSION: The results of present study can help health policy makers to plan more comprehensive and cost-effective strategies at national and sub-national level for prevention and control of burden caused by injuries. [ABSTRACT FROM AUTHOR]

BACKGROUND: Estimating burden of disease, injuries and risk factors is crucial for health policy decision making. The Burden of Diseases (BoD) studies provide data about the magnitude and distribution of health problems among the population at national and sub-national levels. The BoD studies are designed to use secondary data for estimating prevalence and incidence of diseases, injuries and risk factors. However, due to the scarcity of data sometimes it becomes unavoidable to collect data from medical records. Among all needed source of data, including surveys, registries, censuses, inpatient and outpatient data, hospital data are an essential source for BoD studies. Hospital Data Survey (HDS) aims to estimate the prevalence and incidence of diseases and injuries that led to admission to hospitals. This paper aims to describe the required steps for data gathering, sampling, analytical methods, and other needed procedures for HDS.STUDY DESIGN: The designed questionnaire includes demographic data, current health status, diseases, injuries and co-morbidities with their ICD10 codes, curative procedures, and treatment. A pilot study was conducted on 302 medical records from 6 hospitals to evaluate the validity and reliability of the questionnaire. Sampling frame was designed and probability proportional was used after being tested in the pilot study. In the next step, we will collect 367500 medical files from 863 hospitals (0.5% of all inpatient records in hospitals from1996 - 2013). The HDS is the first national study in Iran that is gathering data through an online-offline web-based system based on electronic version of the questionnaire which makes the process of data cleaning and analyses more comfortable. [ABSTRACT FROM AUTHOR]