作者: Kimberly A. Bertrand , Bernard Rosner , A. Heather Eliassen , Susan E. Hankinson , Kathryn M. Rexrode
DOI: 10.1007/S10549-014-3247-5
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摘要: Epidemiologic evidence for an association between plasma 25-hydroxyvitamin D [25(OH)D] and breast cancer is inconsistent. Data are especially limited premenopausal women associations with mammographic density. To test the hypothesis that concentration of 25(OH)D associated density, we conducted a cross-sectional study among 835 in Nurses’ Health Studies. We measured blood samples used multivariable linear regression to quantify average percent density by quartile 25(OH)D. In nested case-control analysis including 493 cases, evaluated risk vitamin status within tertiles Women top levels had 5.2 percentage points higher than bottom (95 % confidence interval: 1.8, 8.7; P trend <0.01), after adjusting predictors established factors. Plasma was significantly inversely high (P < 0.01) but not lower (P-interaction 0.01). These results do support women. There varies inverse apparent only