Age and multivariable adjusted means of mammographic density measures by physical activity.
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*Percent density and dense area were square-root transformed for analysis and the values shown are on a back-transformed scale. † In ever smokers only.Model 1: adjusted for age at mammographyModel 2: adjusted for age at mammography, BMI, age at menarche, parity and age at first birth (nulliparous, 1 child age at first birth 2 hrs per week).
创建时间：
2015-12-02
