Table 4.
Independent associated factors for secondary admissions for foot-related conditions using multivariate logistical regression (ORs (95% CI))
| Risk factor | Unadjusted | p Value | Adjusted | p Value |
|---|---|---|---|---|
| Model 1 | ||||
| Diabetes | 5.46 (2.33 to 12.78) | <0.001* | 4.89 (2.07 to 11.57) | <0.001* |
| Current foot ulcer | 9.84 (4.13 to 23.45) | <0.001* | 4.94 (2.12 to 16.67) | 0.001* |
| Model 1 results: | Pseudo R2: 0.233; Omnibus: df=2, p=<0.001 | Missing: 1 (0.1%); H&L: p=0.755 | Pseudo R2: 0.259; Omnibus: df=4, p=<0.001 | Missing: 5 (0.7%); H&L: p=0.425 |
| Model 2 | ||||
| Diabetes | 5.27 (2.23 to 12.45) | <0.001* | No confounders identified | |
| Foot risk status | <0.001* | |||
| Low risk | Referent | |||
| At risk | 2.19 (0.56 to 8.55) | 0.258 | ||
| High risk | 2.81 (0.78 to 10.18) | 0.116 | ||
| Acute | 16.12 (5.40 to 48.11) | <0.001* | ||
| Model 2 results: | Pseudo R2: 0.261; Omnibus: df=4, p=<0.001 | Missing: 2 (0.3%); H&L: p=0.680 | ||
*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.