Fruits and vegetables and ovarian cancer risk in a pooled analysis of 12 cohort studies.

Auteur(s) :
Larsson SC., Wolk A., Willett WC., Goldbohm RA., Van Den Brandt PA., Colditz GA., Schatzkin A., Hankinson SE., Hunter DJ., Spiegelman D., Freudenheim JL., Fraser GE., Buring JE., Miller AB., Rohan TE., Smith-Warner SA., Zhang SM., McCullough ML., Cerhan JR., Beeson WL., Genkinger JM., Koushik A., Arslan AA., Koenig KL., Leitzmann MF., Patel AI., Smith AE., Andersen KE.
Date :
Sep, 2005
Source(s) :
CANCER EPIDEMIOLOGY, BIOMARKERS AND PREVENTION. #14:9 p2160-2167
Adresse :
Department of Nutrition, Harvard School of Public Health, Boston, MA 02115, USA.

Sommaire de l'article

Because fruits and vegetables are rich in bioactive compounds with potential cancer-preventive actions, increased consumption may reduce the risk of ovarian cancer. Evidence on the association between fruit and vegetable intake and ovarian cancer risk has not been consistent. We analyzed and pooled the primary data from 12 prospective studies in North America and Europe. Fruit and vegetable intake was measured at baseline in each study using a validated food-frequency questionnaire. To summarize the association between fruit and vegetable intake and ovarian cancer, study-specific relative risks (RR) were estimated using the Cox proportional hazards model, and then combined using a random-effects model. Among 560,441 women, 2,130 cases of invasive epithelial ovarian cancer occurred during a maximum follow-up of 7 to 22 years across studies. Total fruit intake was not associated with ovarian cancer risk-the pooled multivariate RR for the highest versus the lowest quartile of intake was 1.06 [95% confidence interval (95% CI), 0.92-1.21; P value, test for trend = 0.73; P value, test for between-studies heterogeneity = 0.74]. Similarly, results for total vegetable intake indicated no significant association (pooled multivariate RR, 0.90; 95% CI, 0.78-1.04, for the highest versus the lowest quartile; P value, test for trend = 0.06; P value, test for between-studies heterogeneity = 0.31). Intakes of botanically defined fruit and vegetable groups and individual fruits and vegetables were also not associated with ovarian cancer risk. Associations for total fruits and vegetables were similar for different histologic types. These results suggest that fruit and vegetable consumption in adulthood has no important association with the risk of ovarian cancer.

Source : Pubmed
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