Fig. 4From: Real-world evidence of biologic treatments in psoriatic arthritis in Italy: results of the CHRONOS (EffeCtiveness of biologic treatments for psoriatic artHRitis in Italy: an ObservatioNal lOngitudinal Study of real-life clinical practice) observational longitudinal studyPersistence of the biologic treatment under analysis: Kaplan–Meier survival curveBack to article page