Maternal preconceptional and prenatal exposure to El Niño Southern Oscillation levels and child mortality: a multi-country study.

Autor: Xu H; Department of Occupational and Environmental Health, Peking University School of Public Health, Beijing, China.; Peking University Institute of Environmental Medicine, Beijing, China., Zhuang CC; Peking University School of Economics, Beijing, China. zogcee@gmail.com., Oddo VM; Department of Kinesiology and Nutrition, College of Applied Health Sciences, University of Illinois Chicago, Chicago, IL, USA., Malembaka EB; Center for Tropical Diseases and Global Health, Université Catholique de Bukavu, Bukavu, Democratic Republic of the Congo.; Faculty of Medicine, Université Catholique de Bukavu, Bukavu, Democratic Republic of the Congo.; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA., He X; Department of Occupational and Environmental Health, Peking University School of Public Health, Beijing, China.; Peking University Institute of Environmental Medicine, Beijing, China., Zhang Q; Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing, China., Huang W; Department of Occupational and Environmental Health, Peking University School of Public Health, Beijing, China.; Peking University Institute of Environmental Medicine, Beijing, China.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2024 Jul 17; Vol. 15 (1), pp. 6034. Date of Electronic Publication: 2024 Jul 17.
DOI: 10.1038/s41467-024-50467-x
Abstrakt: El Niño Southern Oscillation (ENSO) has been shown to relate to the epidemiology of childhood infectious diseases, but evidence for whether they increase child deaths is limited. Here, we investigate the impact of mothers' ENSO exposure during and prior to delivery on child mortality by constructing a retrospective cohort study in 38 low- and middle-income countries. We find that high levels of ENSO indices cumulated over 0-12 lagged months before delivery are associated with significant increases in risks of under-five mortality; with the hazard ratio ranging from 1.33 (95% confidence interval [CI], 1.26, 1.40) to 1.89 (95% CI, 1.78, 2.00). Child mortality risks are particularly related to maternal exposure to El Niño-like conditions in the 0th-1st and 6th-12th lagged months. The El Niño effects are larger in rural populations and those with unsafe sources of drinking water and less education. Thus, preventive interventions are particularly warranted for the socio-economically disadvantaged.
(© 2024. The Author(s).)
Databáze: MEDLINE
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