Table 2.
Model | Hazard ratio (95% CI) | P value | Hazard ratio (95% CI) | P value |
---|---|---|---|---|
1038 participants (113 re-infections) with available data |
439 participants (41 re-infections) with available data |
|||
Model 1 | 1.69 (0.58–4.98) | 0.338 | 1.65 (0.44–6·20) | 0.460 |
Model 2 | 1.70 (0.58–5.00) | 0.332 | 1.66 (0.44–6·24) | 0.454 |
Model 3 | 1.33 (0.48–3.69) | 0.583 | 1.57 (0.45–5·51) | 0.484 |
Model 4 | – | – | 1.59 (0.39–6·55) | 0.520 |
Model 5 | – | – | 1.71 (0.39–7·50) | 0.479 |
Model 1: adjusted for age
Model 2: model 1 plus sex
Model 3: model 2 plus previous hip surgery other than index surgery (yes/no)
Model 4: model 3 plus Charlson comorbidity index (no previous disease/one or two disease categories/more than two disease categories)
Model 5: model 4 plus difficult to treat organism (yes/no)