Arsenic in Drinking Water and Adult Mortality
- 1 November 2009
- journal article
- toxic metals
- Published by Ovid Technologies (Wolters Kluwer Health) in Epidemiology
- Vol. 20 (6), 824-830
- https://doi.org/10.1097/ede.0b013e3181bb56ec
Abstract
Background: Arsenic is a potent human carcinogen and toxicant. Elevated concentration of arsenic in drinking water is a major public-health problem worldwide. We evaluated risks of adult mortality (due to cancer and cardiovascular and infectious diseases) in relation to arsenic exposure through drinking water. Methods: A cohort analysis was applied to survival data prospectively collected during 1991–2000 in a health and demographic surveillance system in Matlab, Bangladesh, where tubewells were installed beginning in the early 1970s. A total of 115,903 persons aged 15 or more years on 1 January 1991 were available for analysis. In this period, 9015 people died and 22,488 were lost to follow-up. Arsenic exposure data were derived from a survey in 2002–2003 of past and current water use and arsenic concentrations in all tubewells. We estimated risk of excess mortality in relation to arsenic exposure, using proportional hazards models. Results: Even at low levels (10–49 μg/L) of arsenic in drinking water, we observed increased risk of death due to all nonaccidental causes (hazard ratio = 1.16 [95% confidence interval = 1.06–1.26]). Increased risks at exposure of 50–149 μg/L were observed for death due to cancers (1.44 [1.06–1.95]), cardiovascular disease (1.16 [0.96–1.40]), and infectious diseases (1.30 [1.13–1.49]). We observed clear dose-response relationships for each of these causes. Conclusions: Arsenic exposure through drinking water has generated excess adult mortality after 20–30 years of exposure.Keywords
This publication has 31 references indexed in Scilit:
- Arsenic and diabetes and hypertension in human populations: A reviewToxicology and Applied Pharmacology, 2007
- Arsenic in drinking water and cerebrovascular disease, diabetes mellitus, and kidney disease in Michigan: a standardized mortality ratio analysisEnvironmental Health, 2007
- Increased Mortality from Lung Cancer and Bronchiectasis in Young Adultsafter Exposure to Arsenic in Utero and in Early ChildhoodEnvironmental Health Perspectives, 2006
- Arsenic Exposure and Cardiovascular Disease: A Systematic Review of the Epidemiologic EvidenceAmerican Journal of Epidemiology, 2005
- DOES ARSENIC EXPOSURE INCREASE THE RISK FOR LIVER CANCER?1Journal of Toxicology and Environmental Health, Part A, 2004
- Lung Cancer and Arsenic Concentrations in Drinking Water in ChileEpidemiology, 2000
- Mortality for Certain Diseases in Areas with High Levels of Arsenic in Drinking WaterArchives of environmental health, 1999
- Lung and kidney cancer mortality associated with arsenic in drinking water in Cordoba, ArgentinaInternational Journal of Epidemiology, 1998
- Bladder Cancer Mortality Associated with Arsenic in Drinking Water in ArgentinaEpidemiology, 1996
- Effects and dose-response relationships of skin cancer and blackfoot disease with arsenicEnvironmental Health Perspectives, 1977