Variablea | ORb | 95% CI | P value | Nagelkerke R2c | Independent contributiond (%) |
---|---|---|---|---|---|
Model 1 | |||||
 Age | 1.47 | 1.20–1.79 | < 0.001 |  |  |
 Total |  |  |  | 0.048 | 54.55 |
Model 2 | |||||
 Age | 1.51 | 1.23–1.85 | < 0.001 |  |  |
 Diabetes mellitus | 2.61 | 1.27–5.35 | 0.009 |  |  |
 Peripheral vascular disease | 8.75 | 2.22–34.47 | 0.002 |  |  |
 Heart disease | 3.93 | 1.42–10.92 | 0.009 |  |  |
 Total |  |  |  | 0.088 | 45.45 |
Model 3 | |||||
 Age | 1.51 | 1.23–1.85 | < 0.001 |  |  |
 Diabetes mellitus | 2.61 | 1.27–5.35 | 0.009 |  |  |
 Peripheral vascular disease | 8.75 | 2.22–34.47 | 0.002 |  |  |
 Heart disease | 3.93 | 1.42–10.92 | 0.009 |  |  |
 Total |  |  |  | 0.088 | 0 |