Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
18
|
pubmed:dateCreated |
1993-10-1
|
pubmed:abstractText |
Antioxidant micronutrients, including vitamin E, vitamin C, the carotenoids, and selenium, defend the body against free radicals and reactive oxygen molecules, suggesting a potential for these dietary components in cancer prevention. To investigate whether high intakes of antioxidant micronutrients protect against colon cancer in humans, we analyzed data from a prospective cohort study of 35,215 Iowa women aged 55-69 years and without a history of cancer who completed a dietary questionnaire in 1986. Through 1990, 212 incident cases of colon cancer were documented. Adjusted for age, total vitamin E intake was inversely associated with the risk of colon cancer (P for trend < 0.0001); the relative risk for the highest compared to the lowest quintile was 0.32 [95% confidence interval (95% CI) 0.19, 0.54]. Further adjustment for total energy intake and other risk factors in proportional hazards regression had little effect on these estimates. The association was not uniform across age groups: the multivariate relative risk of colon cancer for the highest compared to the lowest quintile of total vitamin E intake was 0.16 (95% CI 0.04, 0.70) for those 55-59 years old, 0.37 (95% CI 0.12, 1.16) for those 60-64 years old, and 0.93 (95% CI 0.27, 3.25) for those 65-69 years old. Multivariate-adjusted relative risks among women with higher total intakes of vitamins A and C and beta-carotene, and among users of selenium supplements, were not significantly different from 1.0. These prospective data provide evidence that a high intake of vitamin E may decrease the risk of colon cancer, especially in persons under 65 years of age.
|
pubmed:grant | |
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Sep
|
pubmed:issn |
0008-5472
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
15
|
pubmed:volume |
53
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
4230-7
|
pubmed:dateRevised |
2007-11-14
|
pubmed:meshHeading |
pubmed-meshheading:8364919-Aged,
pubmed-meshheading:8364919-Colonic Neoplasms,
pubmed-meshheading:8364919-DNA Damage,
pubmed-meshheading:8364919-Female,
pubmed-meshheading:8364919-Humans,
pubmed-meshheading:8364919-Middle Aged,
pubmed-meshheading:8364919-Multivariate Analysis,
pubmed-meshheading:8364919-Prospective Studies,
pubmed-meshheading:8364919-Risk,
pubmed-meshheading:8364919-Vitamin E
|
pubmed:year |
1993
|
pubmed:articleTitle |
Reduced risk of colon cancer with high intake of vitamin E: the Iowa Women's Health Study.
|
pubmed:affiliation |
Division of Epidemology, School of Public Health, University of Minnesota, Minneapolis 55454.
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
|