Fig. 2

Kaplan–Meier curves for the analysis cardiovascular events in OSA versus non-OSA groups in prior stroke group and non-prior stroke group. Kaplan–Meier estimates hospitalization for MACCE (A, B) and composite of cardiovascular death, myocardial infarction, and stroke (C, D) between OSA and non-OSA groups in prior stroke group (A, C) and non-prior stroke group (B, D). MACCE, major adverse cardiovascular and cerebrovascular event. OSA, obstructive sleep apnea