Extended Data Fig. 2: PFS1 in ITT population.
From: Early versus deferred use of CDK4/6 inhibitors in advanced breast cancer
Kaplan–Meier plots for PFS after one treatment line (PFS1) in the CDK4/6i-first and CDK4/6i-second group in the ITT population. Cox proportional hazard models were used to calculate hazard ratios between the study groups and were stratified according to the stratification factors used in randomization. The difference was assessed using the stratified log-rank test. P values are two-sided. Events, number of PFS1 events; n, number of patients randomized.
