The study extended the analysis of PEPI data by: 1) characterizing the distributions of responses to hormone therapy with respect to risk factors for cardiovascular disease (lipids/lipoproteins, blood pressure, insulin/glucose, hemostasis factors); 2) examining the multivariate patterns of treatment effects among these cardiovascular risk factors and on other outcomes (symptomatology, bone, endometrial); 3) examining clinical and demographic factors that may affect these relationships and, in doing so, characterizing women who may vary with respect to their "sensitivity" to the separate effects of estrogen and progestin therapy; 4) examining closely patterns of adherence and their relationship to response. An experienced team of statisticians/epidemiologists conducted and planned to publish results from these analyses.