Antioxidant status and cancer mortality in China.

TitleAntioxidant status and cancer mortality in China.
Publication TypeJournal Article
Year of Publication1992
AuthorsChen J, Geissler C, Parpia B, Li J, Campbell TC
JournalInternational journal of epidemiology
Volume21
Issue4
Pagination625-35
Date Published1992 Aug
ISSN0300-5771
Abstract

Sex-specific mortality rates for selected cancer sites (including oesophagus, stomach, liver, lung, colorectum, breast and cervix) and a variety of biochemical indicators of antioxidant status, enzyme activity and oxidative stress (including plasma levels of beta-carotene, alpha-tocopherol, ascorbic acid, selenium, glutathione peroxidase, catalase, superoxide dismutase, iron, copper, zinc, total cholesterol and lipid peroxide) were examined in an ecological study of 65 mostly rural counties in the People's Republic of China. The wide range of both mortality rates and biochemical values and the measurement of a comprehensive set of biochemical indicators permitted both simple correlational and multivariate analyses of the joint and relative effects of each factor on site-specific cancer mortality. Plasma levels of dietary antioxidants were consistently negatively correlated with cancer mortality rates. Ascorbic acid was most strongly negatively associated with most cancers and selenium with oesophageal and stomach cancers. beta-carotene was found to have a protective effect independent of retinol, particularly for stomach cancer.

URLhttp://ije.oxfordjournals.org/cgi/pmidlookup?view=long&pmid=1521964
Short TitleInt J Epidemiol
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