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Table 3 Multivariate cox proportional hazards regression analysis for mortality

From: Asymptomatic peripheral artery disease and mortality in patients on hemodialysis

Parameter Hazard ratio (95% CI) P value
Model 1a
 Non-PAD Reference  
 Total PAD (vs. non-PAD) 2.796 (1.654 to 4.730) < 0.001
 Asymptomatic PAD (vs. non-PAD) 2.323 (1.257 to 4.183) 0.008
 Symptomatic PAD (vs. non-PAD) 4.159 (1.970 to 8.179) < 0.001
  Asymptomatic PAD vs. Symptomatic PAD 0.558 (0.264 to 1.234) 0.145
Model 2b
 Non-PAD Reference  
 Total PAD (vs. non-PAD) 2.273 (1.262 to 4.110) 0.006
 Asymptomatic PAD (vs. non-PAD) 1.963 (1.012 to 3.740) 0.046
 Symptomatic PAD (vs. non-PAD) 3.237 (1.402 to 7.020) 0.007
  Asymptomatic PAD vs. Symptomatic PAD 0.606 (0.273 to 1.407) 0.236
  1. Analyses were performed using cox proportional hazards regression
  2. PAD peripheral artery disease, CI confidence interval
  3. aAdjusted by age, sex, and body mass index
  4. bAdjustment by age, cause of end-stage renal disease, cerebrovascular disease, creatinine, and geriatric nutritional risk index