Fig. 3: Kaplan–Meier curves of real-world progression-free survival.

Graphical representation of rwPFS in a the unadjusted population, b following sIPTW, and c following PSM. AI aromatase inhibitor, CI confidence interval, PAL palbociclib, PSM propensity score matching, rwPFS real-world progression-free survival, sIPTW stabilized inverse probability of treatment weighting.