Table 3

Predictors of Death

Univariate Model Unadjusted OR (95% CI)Multivariate Model 1 Adjusted OR (95% CI)Multivariate Model 2 Adjusted OR (95% CI)
Male1.0 (0.7–1.3), p = 0.8610.8 (0.6–1.2) (p = 0.314)
Age, yrs
 <651.0 (Ref.)1.0 (Ref.)1.0 (Ref.)
 65–791.7 (1.2–2.4), p = 0.0022.0 (1.3–2.9), p < 0.0011.9 (1.3–2.8), p < 0.001
 ≥802.4 (1.6–3.5), p < 0.0013.6 (2.2–5.7), p < 0.0013.7 (2.3–5.8), p < 0.001
Body mass index (vs. ≥20.0 kg/m2)1.0 (Ref.)1.0 (Ref.)1.0 (Ref.)
 18.0–19.91.9 (1.4–2.6), p < 0.0011.5 (1.0–2.1), p = 0.0391.5 (1.1–2.2), p = 0.022
 <18.03.3 (2.2–4.8), p < 0.0012.8 (1.8–4.3), p < 0.0012.9 (1.9–4.5), p < 0.001
Nonambulatory status3.7 (2.8–4.8), p < 0.0012.4 (1.8–3.3), p < 0.0012.4 (1.7–3.2), p < 0.001
Hypertension0.9 (0.7–1.2), p = 0.5061.1 (0.8–1.6), p = 0.507
Hyperlipidemia0.6 (0.5–0.8), p < 0.0010.8 (0.6–1.1), p = 0.118
Diabetes mellitus0.8 (0.6–1.1), p = 0.2180.8 (0.6–1.2), p = 0.315
Smoking0.8 (0.6–1.1), p = 0.2491.2 (0.9–1.7), p = 0.234
Hemodialysis2.0 (1.5–2.6), p < 0.0012.2 (1.6–3.0), p < 0.0012.1 (1.6–2.9), p < 0.001
Cerebrovascular disease1.8 (1.3–2.3), p < 0.0011.6 (1.2–2.2), p = 0.0041.6 (1.2–2.2), p = 0.004
Coronary artery disease1.1 (0.9–1.4), p = 0.4390.9 (0.7–1.3), p = 0.728
Ejection fraction, % (vs. ≥50%)1.0 (Ref.)1.0 (Ref.)1.0 (Ref.)
 40–492.2 (1.5–3.1), p < 0.0011.8 (1.2–2.8), p = 0.0061.8 (1.2–2.8), p = 0.005
 <403.0 (2.0–4.5), p < 0.0012.7 (1.7–4.2), p < 0.0012.6 (1.7–4.0), p < 0.001
Rutherford classification (vs. class 4)0.0 (0.0–0.0), p < 0.0010.0 (0.0–0.0), p < 0.0010.0 (0.0–0.0), p < 0.001
 Class 52.3 (1.6–3.3), p < 0.0011.9 (1.3–2.8), p < 0.0011.9 (1.3–2.7), p = 0.001
 Class 64.5 (3.1–6.7), p < 0.0013.4 (2.2–5.4), p < 0.0013.4 (2.2–5.2), p < 0.001
Isolated infrapopliteal disease1.0 (0.8–1.3), p = 0.9001.0 (0.7–1.4), p = 0.953

In multivariate model 1, all the baseline characteristics were entered. In the multivariate model 2, the variables that were significant in the multivariate model 1 were entered.

CI = confidence interval; OR = odds ratio; Ref. = reference.