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- Title
Dietary intake of vitamin D and calcium and breast cancer risk in the European Prospective Investigation into Cancer and Nutrition.
- Authors
Abbas, Sascha; Linseisen, Jakob; Rohrmann, Sabine; Chang-Claude, Jenny; Peeters, Petra H; Engel, Pierre; Brustad, Magritt; Lund, Eiliv; Skeie, Guri; Olsen, Anja; Tjønneland, Anne; Overvad, Kim; Boutron-Ruault, Marie-Christine; Clavel-Chapelon, Francoise; Fagherazzi, Guy; Kaaks, Rudolf; Boeing, Heiner; Buijsse, Brian; Adarakis, George; Ouranos, Vassilis; Trichopoulou, Antonia; Masala, Giovanna; Krogh, Vittorio; Mattiello, Amalia; Tumino, Rosario; Sacerdote, Carlotta; Buckland, Genevieve; Suárez, Marcial Vicente Argüelles; Sánchez, Maria-José; Chirlaque, Maria-Dolores; Barricarte, Aurelio; Amiano, Pilar; Manjer, Jonas; Wirfält, Elisabet; Lenner, Per; Sund, Malin; Bueno-de-Mesquita, H B; van Duijnhoven, Fränzel J B; Khaw, Kay-Tee; Wareham, Nick; Key, Timothy J; Fedirko, Veronika; Romieu, Isabelle; Gallo, Valentina; Norat, Teresa; Wark, Petra A; Riboli, Elio
- Abstract
Studies assessing the effects of vitamin D or calcium intake on breast cancer risk have been inconclusive. Furthermore, few studies have evaluated them jointly. This study is the largest so far examining the association of dietary vitamin D and calcium intake with breast cancer risk in the European Prospective Investigation into Cancer and Nutrition. During a mean follow-up of 8.8 yr, 7760 incident invasive breast cancer cases were identified among 319,985 women. Multivariable Cox proportional hazards regression was used to estimate hazard ratios (HR) and 95% confidence intervals (CI) for pre- and postmenopausal breast cancer risk. Comparing the highest with the lowest quintile of vitamin D intake, HR and 95% CI were 1.07 (0.87-1.32) and 1.02 (0.90-1.16) for pre- and postmenopausal women, respectively. The corresponding HR and 95% CIs for calcium intake were 0.98 (0.80-1.19) and 0.90 (0.79-1.02), respectively. For calcium intake in postmenopausal women, the test for trend was borderline statistically significant (P(trend) = 0.05). There was no significant interaction between vitamin D and calcium intake and cancer risk (P(interaction) = 0.57 and 0.22 in pre- and postmenopausal women, respectively). In this large prospective cohort, we found no evidence for an association between dietary vitamin D or calcium intake and breast cancer risk.
- Publication
Nutrition and cancer, 2013, Vol 65, Issue 2, p178
- ISSN
1532-7914
- Publication type
Journal Article
- DOI
10.1080/01635581.2013.752018