Fig. 1From: Association of progesterone receptor status with 21-gene recurrence score and survival among patients with estrogen receptor-positive breast cancerForest plot of overall survival associated with chemotherapy stratified by progesterone receptor status and nodal staging using multivariable Cox regression. Dotted vertical line represents a hazards ratio of 0.66 associated with chemotherapy use for the entire cohort. No.: number of patients; aHR: adjusted hazards ratio; CI: confidence interval; PR: progesterone receptor; chemo: chemotherapyBack to article page