Bladder cancer, drinking water source, and tap water consumption: A case-control study

Cantor, KP; Hoover, R; Hartge, P; Mason, TJ; Silverman, DT; Altman, R; Austin, DF; Child, MA; Key, CR; Marrett, LD; Al, E

HERO ID

657269

Reference Type

Journal Article

Year

1987

Language

English

PMID

3480378

HERO ID 657269
In Press No
Year 1987
Title Bladder cancer, drinking water source, and tap water consumption: A case-control study
Authors Cantor, KP; Hoover, R; Hartge, P; Mason, TJ; Silverman, DT; Altman, R; Austin, DF; Child, MA; Key, CR; Marrett, LD; Al, E
Journal Journal of the National Cancer Institute
Volume 79
Issue 6
Page Numbers 1269-1279
Abstract Data from a population-based case-control interview study of incident bladder cancer in 10 areas of the United States were used to estimate relative risks among white men (2,116 cases, 3,892 controls) and women (689 cases, 1,366 controls) according to beverage intake level and type of water source. Individual year-by-year profiles of water source and treatment were developed by linking lifetime residential information with historical water utility data from an ancillary survey. Risk of bladder cancer increased with intake level of beverages made with tap water. The odds ratio (OR) for the highest vs. lowest quintile of tap water consumption was 1.43 [95% confidence interval (CI) = 1.23, 1.67; chi 2 for trend = 26.3, P less than .001]. The risk gradient with intake was restricted to persons with at least a 40-year exposure to chlorinated surface water and was not found among long-term users of nonchlorinated ground water. The ORs for the highest vs. lowest quintiles of tap water intake were 1.7 and 2.0, respectively, among subjects with 40-59 and greater than or equal to 60 years' exposure. Duration of exposure to chlorinated surface water was associated with bladder cancer risk among women and nonsmokers of both sexes. Among non-smoking respondents with tap water consumption above the population median, the OR increased with exposure duration to a level of 3.1 (CI = 1.3, 7.3; chi 2 for trend = 6.3, P = .01) for greater than or equal to 60 years of residence at places served by chlorinated surface water (vs. non-chlorinated ground water users). These results extend findings of earlier epidemiologic studies and are consistent with environmental chemistry and toxicologic data demonstrating the presence of genotoxic by-products of chlorine disinfection in treated surface waters.
Pmid 3480378
Wosid WOS:A1987L725000014
Is Certified Translation No
Dupe Override No
Is Public Yes
Language Text English
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