Fig.2. Hazard ratios for composite events across the SPP and ABI quintiles in all patients.

Forest plots show the HRs and 95% CIs for each quintile group. The HRs are presented in the 4th quintile as a reference. The Cox proportional hazard models were adjusted for eight covariates: sex, age, systolic blood pressure, history of AVEs and diabetes, albumin, C-reactive protein, and hemoglobin.

SPP, skin perfusion pressure; ABI, ankle-brachial index; HR, hazard ratio; CI, confidence interval; ref, reference; Q1, 1st quintile; Q2, 2nd quintile; Q3, 3rd quintile; Q4, 4th quintile; Q5, 5th quintile; AVE, atherosclerotic vascular event.