Global, regional, and national comparative risk assessment of 79 behavioural, environmental and occupational, and metabolic risks or clusters of risks, 1990-2015: a systematic analysis for the Global Burden of Disease Study 2015

SummaryBackground The Global Burden of Diseases, Injuries, and Risk Factors Study 2015 provides an up-to-date synthesis of the evidence for risk factor exposure and the attributable burden of disease. By providing national and subnational assessments spanning the past 25 years, this study can inform debates on the importance of addressing risks in context. Methods We used the comparative risk assessment framework developed for previous iterations of the Global Burden of Disease Study to estimate attributable deaths, disability-adjusted life-years (DALYs), and trends in exposure by age group, sex, year, and geography for 79 behavioural, environmental and occupational, and metabolic risks or clusters of risks from 1990 to 2015. This study included 388 risk-outcome pairs that met World Cancer Research Fund-defined criteria for convincing or probable evidence. We extracted relative risk and exposure estimates from randomised controlled trials, cohorts, pooled cohorts, household surveys, census data, satellite data, and other sources. We used statistical models to pool data, adjust for bias, and incorporate covariates. We developed a metric that allows comparisons of exposure across risk factors—the summary exposure value. Using the counterfactual scenario of theoretical minimum risk level, we estimated the portion of deaths and DALYs that could be attributed to a given risk. We decomposed trends in attributable burden into contributions from population growth, population age structure, risk exposure, and risk-deleted cause-specific DALY rates. We characterised risk exposure in relation to a Socio-demographic Index (SDI). Findings Between 1990 and 2015, global exposure to unsafe sanitation, household air pollution, childhood underweight, childhood stunting, and smoking each decreased by more than 25%. Global exposure for several occupational risks, high body-mass index (BMI), and drug use increased by more than 25% over the same period. All risks jointly evaluated in 2015 accounted for 57·8% (95% CI 56·6–58·8) of global deaths and 41·2% (39·8–42·8) of DALYs. In 2015, the ten largest contributors to global DALYs among Level 3 risks were high systolic blood pressure (211·8 million [192·7 million to 231·1 million] global DALYs), smoking (148·6 million [134·2 million to 163·1 million]), high fasting plasma glucose (143·1 million [125·1 million to 163·5 million]), high BMI (120·1 million [83·8 million to 158·4 million]), childhood undernutrition (113·3 million [103·9 million to 123·4 million]), ambient particulate matter (103·1 million [90·8 million to 115·1 million]), high total cholesterol (88·7 million [74·6 million to 105·7 million]), household air pollution (85·6 million [66·7 million to 106·1 million]), alcohol use (85·0 million [77·2 million to 93·0 million]), and diets high in sodium (83·0 million [49·3 million to 127·5 million]). From 1990 to 2015, attributable DALYs declined for micronutrient deficiencies, childhood undernutrition, unsafe sanitation and water, and household air pollution; reductions in risk-deleted DALY rates rather than reductions in exposure drove these declines. Rising exposure contributed to notable increases in attributable DALYs from high BMI, high fasting plasma glucose, occupational carcinogens, and drug use. Environmental risks and childhood undernutrition declined steadily with SDI; low physical activity, high BMI, and high fasting plasma glucose increased with SDI. In 119 countries, metabolic risks, such as high BMI and fasting plasma glucose, contributed the most attributable DALYs in 2015. Regionally, smoking still ranked among the leading five risk factors for attributable DALYs in 109 countries; childhood underweight and unsafe sex remained primary drivers of early death and disability in much of sub-Saharan Africa. Interpretation Declines in some key environmental risks have contributed to declines in critical infectious diseases. Some risks appear to be invariant to SDI. Increasing risks, including high BMI, high fasting plasma glucose, drug use, and some occupational exposures, contribute to rising burden from some conditions, but also provide opportunities for intervention. Some highly preventable risks, such as smoking, remain major causes of attributable DALYs, even as exposure is declining. Public policy makers need to pay attention to the risks that are increasingly major contributors to global burden. Funding Bill & Melinda Gates Foundation

Knowledge, Perceptions and Information about Hormone Therapy (HT) among Menopausal Women: A Systematic Review and Meta-Synthesis

BACKGROUND: The use of hormone therapy (HT) by menopausal women has declined since the Women's Health Initiative randomized trial (WHI) in 2002 demonstrated important harms associated with long-term use. However, how this information has influenced women's knowledge and attitudes is uncertain. We aimed to evaluate the attitudes and perceptions towards HT use, as well as specific concerns and information sources on HT since the WHI trial. METHOD/RESULTS: We did a systematic review to assess the attitudes and knowledge towards HT in women, and estimate the magnitude of the issue by pooling across the studies. Using meta-synthesis methods, we reviewed qualitative studies and surveys and performed content analysis on the study reports. We pooled quantitative studies using a random-effects meta-analysis. We analyzed 11 qualitative studies (n = 566) and 27 quantitative studies (n = 39251). Positive views on HT included climacteric symptom control, prevention of osteoporosis and a perceived improvement in quality of life. Negative factors reported included concerns about potential harmful effects, particularly cancer risks. Sources of information included health providers, media, and social contact. By applying a meta-synthesis approach we demonstrate that these findings are broadly applicable across large groups of patients. CONCLUSIONS: Although there are clear hazards associated with long-term HT use, many women view HT favorably for climacteric symptom relief. Media, as a source of information, is often valued as equivalent to health providers

Global, regional, and national levels of maternal mortality, 1990-2015 : a systematic analysis for the Global Burden of Disease Study 2015

Background In transitioning from the Millennium Development Goal to the Sustainable Development Goal era, it is imperative to comprehensively assess progress toward reducing maternal mortality to identify areas of success, remaining challenges, and frame policy discussions. We aimed to quantify maternal mortality throughout the world by underlying cause and age from 1990 to 2015. Methods We estimated maternal mortality at the global, regional, and national levels from 1990 to 2015 for ages 10-54 years by systematically compiling and processing all available data sources from 186 of 195 countries and territories, 11 of which were analysed at the subnational level. We quantified eight underlying causes of maternal death and four timing categories, improving estimation methods since GBD 2013 for adult all-cause mortality, HIV-related maternal mortality, and late maternal death. Secondary analyses then allowed systematic examination of drivers of trends, including the relation between maternal mortality and coverage of specific reproductive health-care services as well as assessment of observed versus expected maternal mortality as a function of Socio-demographic Index (SDI), a summary indicator derived from measures of income per capita, educational attainment, and fertility. Findings Only ten countries achieved MDG 5, but 122 of 195 countries have already met SDG 3.1. Geographical disparities widened between 1990 and 2015 and, in 2015, 24 countries still had a maternal mortality ratio greater than 400. The proportion of all maternal deaths occurring in the bottom two SDI quintiles, where haemorrhage is the dominant cause of maternal death, increased from roughly 68% in 1990 to more than 80% in 2015. The middle SDI quintile improved the most from 1990 to 2015, but also has the most complicated causal profile. Maternal mortality in the highest SDI quintile is mostly due to other direct maternal disorders, indirect maternal disorders, and abortion, ectopic pregnancy, and/or miscarriage. Historical patterns suggest achievement of SDG 3.1 will require 91% coverage of one antenatal care visit, 78% of four antenatal care visits, 81% of in-facility delivery, and 87% of skilled birth attendance. Interpretation Several challenges to improving reproductive health lie ahead in the SDG era. Countries should establish or renew systems for collection and timely dissemination of health data; expand coverage and improve quality of family planning services, including access to contraception and safe abortion to address high adolescent fertility; invest in improving health system capacity, including coverage of routine reproductive health care and of more advanced obstetric care-including EmOC; adapt health systems and data collection systems to monitor and reverse the increase in indirect, other direct, and late maternal deaths, especially in high SDI locations; and examine their own performance with respect to their SDI level, using that information to formulate strategies to improve performance and ensure optimum reproductive health of their population.Peer reviewe

Depressão em mulheres climatéricas: análise de mulheres atendidas ambulatorialmente em um hospital universitário no Maranhão Depression in climacteric women: analysis of a sample receiving care at a university hospital in Maranhão, Brazil

Introdução: O climatério, período de transição entre a fase reprodutiva e não-reprodutiva, ocasiona mudanças biopsicossociais nas mulheres que o vivenciam. A associação entre a maior prevalência de depressão nesse período é, no entanto, ainda controversa. O objetivo deste estudo foi avaliar a prevalência de depressão em mulheres climatéricas atendidas em um hospital universitário numa cidade da Região Nordeste do Brasil e identificar fatores associados. Método: Foi realizado um estudo prospectivo e analítico de 70 mulheres climatéricas. O diagnóstico de depressão foi dado segundo critérios diagnósticos da Classificação Internacional de Doenças em um período de seguimento mínimo de 3 meses. Foram investigadas as seguintes variáveis: escolaridade, situação conjugal, renda pessoal, gravidade da depressão segundo escala de Hamilton, presença e intensidade de sintomas climatéricos, menopausa (natural ou cirúrgica), dependência econômica do parceiro, antecedentes familiares de depressão, história prévia de depressão pós-parto, episódios depressivos e transtorno disfórico pré-menstrual, alterações da função sexual e visão positiva ou negativa da menopausa. Resultados: Um percentual de 34,3% das pacientes apresentou depressão, sendo 70,8% destas na categoria leve da escala de Hamilton. Não houve associação estatisticamente significante entre variáveis socioeconômicas, diminuição da libido e antecedentes familiares de depressão com a presença de depressão. Houve associação entre a presença de depressão e pacientes com sintomas vasomotores (p = 0,03), insônia (p < 0,001), menopausa (p = 0,05), com histórico de depressão pós-parto (p = 0,04) e transtorno disfórico pré-menstrual (p = 0,05) e visão negativa da menopausa (p = 0,001). Conclusões: Foi encontrada uma alta prevalência de depressão nas pacientes estudadas. Múltiplos fatores (impacto da menopausa, antecedentes psiquiátricos e visão pessoal sobre a menopausa) foram associados ao seu surgimento.<br>Introduction: The climacteric is a transition period between reproductive and non-reproductive ages that leads to biopsychossocial changes in women who experience it. However, association between a larger prevalence of depression in this period is still controversial. The objective of this study was to assess the prevalence of depression in climacteric women receiving care at a university hospital in a Northeastern Brazilian municipality and to identify associated factors. Method: A prospective, analytic study of 70 climacteric women was performed. Diagnosis of depression was performed according to the International Classification of Diseases diagnostic criteria through a minimal 3-month follow-up period. The following variables were investigated: educational level, marital status, personal income, Hamilton Depression Rating Scale, presence and intensity of climacteric symptoms, menopause (natural or surgical), financial dependence on the partner, family history of depression, previous history of postpartum depression, depressive episodes, premenstrual dysphoric disorder, sexual function disorders, and positive or negative attitudes toward menopause. Results: A percentage of 34.3% of the patients had depression, and 70.8% were classified as mild intensity according to Hamilton scale. There was no statistically significant association between socioeconomic variables, reduced sex drive and family history of depression and presence of depression. Conversely, presence of vasomotor symptoms (p = 0.03), insomnia (p < 0.001), menopause (p = 0.05), history of postpartum depression (p = 0.04), premenstrual dysphoric disorder (p = 0.05), and negative attitude toward menopause (p = 0.001) were statistically associated with depression. Conclusions: There was a high prevalence of depression in assessed women. Multiple factors (impact of menopause, psychiatric history and personal impressions of menopause) are responsible for its occurrence