Post-Treatment Change in Serum Estrone Predicts Mammographic Percent Density Changes in Women Who Received Combination Estrogen and Progestin in the Postmenopausal Estrogen/Progestin Interventions (PEPI) Trial

Abstract

Greater increase in serum estrone level as a function of treatment is a significant predictor of increase in mammographic percent density in women randomly assigned to the combination of estrogen and progestin.