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Environmental cadmium exposure and noncancer mortality in a general Japanese population in cadmium nonpolluted regions
Author(s) -
Suwazono Yasushi,
Nogawa Kazuhiro,
Sakurai Masaru,
Watanabe Yuuka,
Nishijo Muneko,
Ishizaki Masao,
Morikawa Yuko,
Kido Teruhiko,
Nakagawa Hideaki
Publication year - 2021
Publication title -
journal of applied toxicology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.784
H-Index - 87
eISSN - 1099-1263
pISSN - 0260-437X
DOI - 10.1002/jat.4067
Subject(s) - cadmium , quartile , hazard ratio , confidence interval , creatinine , medicine , cadmium exposure , population , myocardial infarction , physiology , endocrinology , chemistry , environmental health , toxicity , organic chemistry
The objective of this study was to assess the effect of environmental cadmium exposure according to urinary cadmium concentration (U‐Cd) on noncancer mortality in a general Japanese population. We conducted a longitudinal study for 19 years in 2804 inhabitants (1107 men and 1697 women) in some cadmium nonpolluted regions in Japan. The participants were classified into quartiles based on U‐Cd (μg/g cre) adjusted for urinary creatinine. Hazard ratio (HR) and 95% confidence interval (95% CI) for continuous U‐Cd or the quartiles of U‐Cd were calculated for noncancer mortality. By applying a Fine and Gray competing risk model, continuous U‐Cd (+1 μg/g cre) showed significant HR for cardiocerebrovascular diseases (HR 1.05, 95% CI: 1.00–1.11), cerebrovascular diseases (HR 1.08, 95% CI: 1.01–1.16), and cerebral infarction (HR 1.11, 95% CI: 1.04–1.20) in men. However, notable significant HR for continuous and quartered U‐Cd were not observed in women. In this study, U‐Cd was associated with increased cardiocerebrovascular mortality in a general Japanese population, suggesting that environmental cadmium exposure is detrimental to the life prognosis in cadmium nonpolluted regions in Japan.

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