Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1997-3-13
pubmed:abstractText
The authors studied the intake of vegetables, fruits, beta-carotene, and vitamins C and E in relation to the incidence of lung cancer. For 561 men from the town of Zutphen, the Netherlands, dietary history information was obtained in 1960, 1965, and 1970. During 1971-1990, 54 new cases of lung cancer were identified. The data were analyzed using Cox proportional hazard analyses, adjusting for age, pack-years of cigarettes, and energy intake. No relation between intake of vitamin E and lung cancer risk was seen. For vitamin C intake, the results pointed to an inverse association, although not entirely consistently. Furthermore, it was observed that participants with low stable intakes (i.e., low in 1960, 1965, and 1970) of vegetables, fruits, and beta-carotene experienced more than twofold increased relative risks of lung cancer than those with high stable intakes. For participants with low average intakes, relative risks were much lower and not statistically significant. The authors conclude that there is no apparent relation of vitamin E to lung cancer risk; however, for beta-carotene, vitamin C, vegetables, and fruit, most studies, including the present one, suggest weak inverse associations. The use of repeated intake measurements to select subgroups with stable, highly contrasting intakes may be a promising approach for studying diet-cancer relations.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0002-9262
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
145
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
358-65
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Repeated measurements of vegetables, fruits, beta-carotene, and vitamins C and E in relation to lung cancer. The Zutphen Study.
pubmed:affiliation
Department of Chronic Diseases and Environmental Epidemiology, National Institute of Public Health and the Environment, Bilthoven, The Netherlands.
pubmed:publicationType
Journal Article