ObjectiveTo estimate the prevalence of antenatal depression in South Asia and to examine variations by country and study characteristics to inform policy, practice and future research.MethodsWe conducted a comprehensive search of 13 databases including international databases and databases covering scientific literature from South Asian countries in addition to Google Scholar and grey sources from 1 January 2007 to 31 May 2018. Studies reporting prevalence estimates of antenatal depression using a validated diagnostic/screening tool were identified, screened, selected and appraised. Primary outcome was proportion (%) of pregnant women identified as having antenatal depression.ResultsThirty-three studies involving 13 087 pregnant women were included in the meta-analysis. Twelve studies were rated as high quality and 21 studies were of moderate quality. Overall pooled prevalence of antenatal depression was 24.3 % (95% Confidence Interval (CI) 19.03 to 30.47). Studies showed a high degree of heterogeneity (I2=97.66%) and evidence of publication bias (p=0.668). Prevalence rates for India (17.74%, 95% CI 11.19 to 26.96) and Sri Lanka (12.95%, 95% CI 8.29 to 19.68) were lower compared with the overall prevalence, whereas prevalence rates for Pakistan (32.2%, 95% CI 23.11 to 42.87) and Nepal (50%, 95% CI 35.64 to 64.36) were higher.ConclusionsWhile robust prevalence studies are sparse in most South Asian countries, available data suggest one in four pregnant women is likely to experience antenatal depression in the region. Findings highlight the need for recognition of the issue in health policy and practice and for resource allocation for capacity building at regional and national levels for prevention, diagnosis and treatment.
Purpose of Review Health effects of long-term exposure to ambient PM2.5 vary with regions, and 75% of the deaths attributable to PM2.5 were estimated in Asia-Pacific in 2017. This systematic review aims to summarize the existing evidence from cohort studies on health effects of long-term exposure to ambient PM2.5 in Asia-Pacific. Recent Findings In Asia-Pacific, 60 cohort studies were conducted in Australia, Mainland China, Hong Kong, Taiwan, and South Korea. They consistently supported associations of long-term exposure to PM2.5 with increased all-cause/non-accidental and cardiovascular mortality as well as with incidence of cardiovascular diseases, type 2 diabetes mellitus, kidney diseases, and chronic obstructive pulmonary disease. Evidence for other health effects was limited. Inequalities were identified in PM2.5-health associations. Summary To optimize air pollution control and public health prevention, further studies need to assess the health effects of long-term PM2.5 exposure in understudied regions, the health effects of long-term PM2.5 exposure on mortality and risk of type 2 diabetes mellitus, renal diseases, dementia and lung cancer, and inequalities in PM2.5-health associations. Study design, especially exposure assessment methods, should be improved.
Background Human Immunodeficiency Virus (HIV) infection among pregnant women has been associated with a number of adverse maternal and infant outcomes. Nigeria accounts for about 10% of the HIV/AIDS burden worldwide and has the second highest incidence of new HIV infections among women globally. This study estimated the overall prevalence of HIV among pregnant women in Nigeria and examined variations across the geo-political zones of the country. Methods We conducted a systematic review and meta-analysis. A comprehensive search was conducted using eight electronic databases and grey sources for studies published from 1·1·2008 to 31·8·2019. Primary studies reporting prevalence estimates of HIV among pregnant women diagnosed using a diagnostic/ screening test were identified, screened and appraised using a two-stage process. A meta-analysis was conducted with the primary outcome measure as proportion (%) of pregnant women identified as having HIV infection. Results Twenty three eligible studies involving 72,728 pregnant women were included in the meta-analysis. The overall pooled prevalence of HIV among pregnant women was 7·22% (95% CI: 5·64, 9·21). A high degree of heterogeneity (I2=97·2%) and publication bias (p = 0.728) was reported. Prevalence rate for South-East geo-political zone (17·04%, 95% CI: 9·01, 29·86) was higher compared to the overall prevalence. Conclusions Findings imply that 7 out of every 100 pregnant women in Nigeria are likely to have HIV infection. The magnitude of the issue highlight the need for targeted efforts at local, national and international levels towards prevention, diagnosis and treatment. Key messages HIV infection among pregnant women is a major public health issue in Nigeria. Targeted efforts are needed at local, national and international levels towards prevention, diagnosis and treatment.
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