Figure 3.

Survival after breast cancer diagnosis by estrogen plus progestin use at baseline. Analyses were adjusted for age, race or ethnic group, body mass index, education, smoking status, alcohol use, self-reported health, level of physical activity, presence or absence of a family history of breast cancer, estimated breast-cancer risk based on the Gail model, bilateral oophorectomy, and age at diagnosis and stratified by baseline age group. All statistical tests were two-sided. CI = confidence interval; HR = hazard ratio.