broccoli reduces bladder cancer risk

Doug Skrecky (
Thu, 21 Oct 1999 09:54:11 -0700 (PDT)

Michaud DS. Spiegelman D. Clinton SK. Rimm EB. Willett WC. Giovannucci EL.
Department of Nutrition, Harvard School of Public Health, Boston, MA 02115, USA.
Fruit and vegetable intake
and incidence of bladder cancer in a male prospective cohort. Source
Journal of the National Cancer Institute. 91(7):605-13, 1999 Apr 7. Abstract
BACKGROUND: Previous epidemiologic studies of fruit and vegetable intake and bladder cancer risk have yielded inconsistent results, especially with regard to the types of fruits and vegetables consumed. We examined total fruit and vegetable
intake, as well as intakes of subtypes of fruits and vegetables, in relation to
bladder cancer risk in a large male prospective cohort study. METHODS: Two hundred fifty-two cases of incident bladder cancer were diagnosed from 1986 through January 31, 1996, among 47,909 men enrolled in the Health Professionals Follow-up Study. Each participant in this cohort completed a 131-item food-frequency questionnaire in 1986 and subsequently in 1990 and

  1. We used logistic regression analyses to examine fruit and vegetable intake in relation to bladder cancer risk, after adjusting for age, history of cigarette smoking, current smoking status, geographic region, total fluid intake, and caloric intake. RESULTS: We observed a weak, inverse association that was not statistically significant between total fruit and vegetable intake and bladder cancer risk. Intake of cruciferous vegetables was inversely associated with risk (relative risk