Table 2.
Multivariate analysis for risk factors associated with reinfection after two-stage revision THA
| Variables | Adjusted HR | 95% CI | p value |
|---|---|---|---|
| Body mass index ≥30 kg/m2 | 9.16 | 1.51−55.3 | 0.0158* |
| Drug abuse | 1.66 | 0.14−19.4 | 0.6832 |
| Liver cirrhosis | 6.39 | 1.09−37.4 | 0.0398* |
| Gram-negative organism | 5.68 | 1.18−27.4 | 0.0303* |
| Presence of sinus tract | 18.2 | 2.15−153 | 0.0077* |
| Repeated debridement between stage | 5.64 | 0.59−53.1 | 0.1303 |
| Revision operative time >4 h | 1.00 | 0.08−12.5 | 0.9957 |
HR hazard ratio, CI confidence interval
*A p value of <0.05 was considered to be statistically significant