Drinking Water Salinity and Infant Mortality in Coastal Bangladesh

Dasgupta, Susmita ; Huq, Mainul ; Wheeler, David

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Abstract

Bangladesh, with two-thirds of its land area less than five meters above sea level, is one of the most climate-vulnerable countries in the world. Low-lying coastal districts along the Bay of Bengal are particularly vulnerable to sea level rise, tidal flooding, storm surges, and climate-induced increases in soil and water salinity. This paper investigates the impact of drinking water salinity on infant mortality in coastal Bangladesh. It focuses on the salinity of drinking water consumed during pregnancy, which extensive medical research has linked to maternal hypertension, preeclampsia, and post-partum morbidity and mortality. The study combines spatially-formatted salinity measures for 2001-09 provided by Bangladesh with individual and household survey information from the Bangladesh Demographic and Health Surveys for 2004 and 2007. It uses probit and logit analyses to estimate mortality probability for infants less than two months old. Controlling for many other determinants of infant mortality, the analysis finds high significance for salinity exposure during the last month of pregnancy and no significance for exposure during the preceding months. The estimated impact of salinity on infant mortality is comparable in magnitude to the estimated effects of traditionally-cited variables such as maternal age and education, gender of the household head, household wealth, toilet facilities, drinking water sources, and cooking fuels.

Document type: Working paper
Publisher: The World Bank
Place of Publication: Washington, D.C.
Date: 2015
Version: Secondary publication
Date Deposited: 11 September 2015
Number of Pages: 24
Faculties / Institutes: Miscellaneous > Individual person
DDC-classification: "Social services; association"
Controlled Subjects: Bangladesch, Küste, Kindersterblichkeit, Trinkwasser, Versalzung
Uncontrolled Keywords: Bangladesch, Küstengebiet, Kindersterblichkeit, Trinkwasser, Versalzung / Bangladesh, Coastal Area, Infant Mortality, Drinking Water, Salinity
Subject (classification): Medicine
Science and Technology
Countries/Regions: Bangladesh
Additional Information: © World Bank. https://openknowledge.worldbank.org/handle/10986/21594 License: CC BY 3.0 IGO
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