Table 4. Logistic regression of prosthetization (dependent variable) versus age, gender, side and level of amputation, all comorbidities and death (independent variables).
| Variable | GL | Estimated parameter | Standard error | Wald (χ2) | p value | Odds ratio | 95%CI odds ratio (inferior) | 95%CI odds ratio (superior) |
|---|---|---|---|---|---|---|---|---|
| Intercepto | 1 | 10.19 | 757.80 | 0.00 | 0.99 | - | - | - |
| Age | 1 | -0.06 | 0.02 | 9.22 | 0.002 | 0.94 | 0.90 | 0.98 |
| Gender, female | 1 | -0.08 | 0.23 | 0.11 | 0.74 | - | - | - |
| Side, right | 1 | 0.94 | 0.40 | 5.71 | 0.02 | 10.79 | 1.50 | 77.49 |
| Side, left | 1 | 0.49 | 0.37 | 1.73 | 0.19 | - | - | - |
| Level, transfemoral | 1 | 0.08 | 0.21 | 0.14 | 0.71 | - | - | - |
| COPD, absence | 1 | -6.46 | 757.80 | 0.00 | 0.99 | - | - | - |
| AH, absence | 1 | -0.22 | 0.25 | 0.75 | 0.39 | - | - | - |
| DM, absence | 1 | -0.05 | 0.28 | 0.04 | 0.85 | - | - | - |
| Coronary artedy disease, absence | 1 | 0.12 | 0.26 | 0.22 | 0.64 | - | - | - |
| CRF, absence | 1 | 0.82 | 0.41 | 3.99 | 0.05 | 5.14 | 1.03 | 25.59 |
| AAO, absence | 1 | 0.23 | 0.47 | 0.23 | 0.63 | - | - | - |
| CAO, absence | 1 | -0.26 | 0.24 | 1.16 | 0.28 | - | - | - |
| Dyslipidemia, absence | 1 | -0.19 | 0.26 | 0.53 | 0.47 | - | - | - |
| CHF, absence | 1 | -0.52 | 0.44 | 1.39 | 0.24 | - | - | - |
| Smoking, absence | 1 | -0.41 | 0.28 | 2.10 | 0.15 | - | - | - |
| Survived | 1 | 0.91 | 0.24 | 14.94 | 0.0001 | 6.16 | 2.45 | 15.50 |
| Wald test | 29.17 | |||||||
| p value, global | 0.02 | |||||||
| AIC | 203.05 |
Intercepto: model constant; FG: freedom grade; COPD: chronic obstructive pulmonar disease; AH: arterial hypertension; DM: diabetes mellitus; CRF: chronic renal failure; AAO: acute arterial occlusion; CAO: chronic arterial occlusion; CHF: congestive heart failure; AIC: Akaike information criteria; 95%CI: 95% interval confidence.