Table 4

Independent associated factors for secondary admissions for foot-related conditions using multivariate logistical regression (ORs (95% CI))

Risk factorUnadjustedp ValueAdjustedp Value
Model 1
 Diabetes5.46 (2.33 to 12.78)<0.001*4.89 (2.07 to 11.57)<0.001*
 Current foot ulcer9.84 (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=<0.001Missing: 1 (0.1%); H&L: p=0.755Pseudo R2: 0.259; Omnibus: df=4, p=<0.001Missing: 5 (0.7%); H&L: p=0.425
Model 2
 Diabetes5.27 (2.23 to 12.45)<0.001*No confounders identified
 Foot risk status<0.001*
 Low riskReferent
 At risk2.19 (0.56 to 8.55)0.258
 High risk2.81 (0.78 to 10.18)0.116
 Acute16.12 (5.40 to 48.11)<0.001*
 Model 2 results:Pseudo R2: 0.261; Omnibus: df=4, p=<0.001Missing: 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.