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Sökning: swepub > Umeå universitet > Riboli Elio > Krogh Vittorio > Engelska > Martínez Carmen > Peeters Petra H M > Berrino Franco > Lunds universitet

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1.
  • Sieri, Sabina, et al. (författare)
  • Dietary fat and breast cancer risk in the European Prospective Investigation into Cancer and Nutrition
  • 2008
  • Ingår i: AMERICAN JOURNAL OF CLINICAL NUTRITION. - AMER SOC CLINICAL NUTRITION. - 0002-9165. ; 88:5, s. 1304-1312
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Epidemiologic studies have produced conflicting results with respect to an association of dietary fat with breast cancer. Objective: We aimed to investigate the association between fat consumption and breast cancer. Design: We prospectively investigated fat consumption in a large (n = 319 826), geographically and culturally heterogeneous cohort of European women enrolled in the European Prospective Investigation into Cancer and Nutrition who completed a dietary questionnaire. After a mean of 8.8 y of follow-up, 7119 women developed breast cancer. Cox proportional hazard models, stratified by age and center and adjusted for energy intake and confounders, were used to estimate hazard ratios (HRs) for breast cancer. Results: An association between high saturated fat intake and greater breast cancer risk was found HR = 1.13 (95% CI: 1.00, 1.27; P for trend = 0.038) for the highest quintile of saturated fat intake compared with the lowest quintile: 1.02 (1.00, 1.04) for a 20% increase in saturated fat consumption (continuous variable). No significant association of breast cancer with total, monounsaturated, or polyunsaturated fat was found, although trends were for a direct association of risk with monounsaturated fat and an inverse association with polyunsaturated fat. In menopausal women, the positive association with saturated fat was confined to nonusers of hormone therapy at baseline 1.21 (0.99, 1.48) for the highest quintile compared with the lowest quintile; P for trend = 0.044; and 1.03 (1.00, 1.07) for a 20% increase in saturated fat as a continuous variable. Conclusions: Evidence indicates a weak positive association between saturated fat intake and breast cancer risk. This association was more pronounced for postmenopausal women who never used hormone therapy. Am J Clin Nutr 2008; 88: 1304-12.
2.
  • Lahmann, Petra H, et al. (författare)
  • Body size and breast cancer risk : findings from the European Prospective Investigation into Cancer And Nutrition (EPIC).
  • 2004
  • Ingår i: International Journal of Cancer. - 0020-7136. ; 111:5, s. 762-71
  • Tidskriftsartikel (refereegranskat)abstract
    • The evidence for anthropometric factors influencing breast cancer risk is accumulating, but uncertainties remain concerning the role of fat distribution and potential effect modifiers. We used data from 73,542 premenopausal and 103,344 postmenopausal women from 9 European countries, taking part in the EPIC study. RRs from Cox regression models were calculated, using measured height, weight, BMI and waist and hip circumferences; categorized by cohort wide quintiles; and expressed as continuous variables, adjusted for study center, age and other risk factors. During 4.7 years of follow-up, 1,879 incident invasive breast cancers were identified. In postmenopausal women, current HRT modified the body size-breast cancer association. Among nonusers, weight, BMI and hip circumference were positively associated with breast cancer risk (all P-trend less than or equal to 0.002); obese women (BMI > 30) had a 31% excess risk compared to women with BMI < 25. Among HRT users, body measures were inversely but nonsignificantly associated with breast cancer. Excess breast cancer risk with HRT was particularly evident among lean women. Pooled RRs per height increment of 5 cm were 1.05 (95% CI 1.00-1.16) in premenopausal and 1.10 (95% CI 1.05-1.16) in postmenopausal women. Among premenopausal women, hip circumference was the only other measure significantly related to breast cancer (P-trend = 0.03), after accounting for BMI. In postmenopausal women not taking exogenous hormones, general obesity is a significant predictor of breast cancer, while abdominal fat assessed as waist-hip ratio or waist circumference was not related to excess risk when adjusted for BMI. Among premenopausal women, weight and BMI showed nonsignificant inverse associations with breast cancer. (C) 2004 Wiley-Liss, Inc.
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