Risk factor | Unadjusted | p Value | Adjusted | p Value |
---|---|---|---|---|
Model 1 | ||||
Myocardial infarct | 0.15 (0.03 to 0.70) | 0.016* | 0.34 (0.06 to 1.90) | 0.219 |
Acute foot trauma | 29.49 (7.28 to 119.48) | <0.001* | 73.32 (15.86 to 338.92) | <0.001* |
PAD | <0.001* | <0.001* | ||
Nil PAD | Referent | Referent | ||
Mild PAD | 0 | NA | 0 | NA |
Moderate PAD | 2.37 (0.62 to 9.04) | 0.207 | 5.45 (1.05 to 28.23) | 0.044 |
Critical PAD | 53.60 (16.82 to 170.84) | <0.001* | 140.56 (30.82 to 641.04) | <0.001* |
Current foot infection | 29.39 (7.52 to 114.83) | <0.001* | 53.11 (9.89 to 285.17) | <0.001* |
Past GP treatment | 4.65 (1.64 to 13.20) | 0.004* | 7.61 (2.30 to 25.19) | 0.001* |
Past surgeon treatment | 5.88 (1.66 to 20.81) | 0.006* | 6.98 (1.91 to 25.54) | 0.003* |
Model 1 results: | Pseudo R2: 0.602; Omnibus: df=8, p=<0.001 | Missing: 14 (1.9%); H&L: p=0.013 | Pseudo R2: 0.657; Omnibus: df=15, p=<0.001 | Missing: 36 (4.9%); H&L: p=0.880 |
Model 2 | + Past foot treatment | |||
Foot risk status | <0.001* | <0.001* | ||
Low risk | Referent | Referent | ||
At risk | 1.66 (0.15 to 18.76) | 0.682 | 2.01 (0.18 to 23.16) | 0.574 |
High risk | 23.12 (5.05 to 105.95) | <0.001* | 39.57 (8.15 to 192.05) | <0.001* |
Acute | 181.44 (40.52 to 812.51) | <0.001* | 158.63 (30.34 to 829.51) | <0.001* |
Past GP treatment | 2.70 (1.17 to 6.25) | 0.020* | 6.40 (2.36 to 17.40) | <0.001* |
Past surgeon treatment | 4.31 (1.49 to 12.44) | 0.007* | 11.62 (3.46 to 39.03) | <0.001* |
Model 2 results: | Pseudo R2: 0.582; Omnibus: df=5, p=<0.001 | Missing: 2 (0.3%); H&L: p=0.861 | Pseudo R2: 0.638; Omnibus: df=10, p=<0.001 | Missing: 2 (0.3%); H&L: p=0.954 |
*p<0.05.df, degrees of freedom; H&L, Hosmer and Lemeshow test; missing, excluded missing cases; NA, not applicable; Omnibus, Omnibus tests of model coefficients; Pseudo R2, Nagelkerke R2; GP, general practitioner; PAD, peripheral arterial disease.