Table 4.
Independent predisposing factors for periprosthetic joint infection*
| Independent factors | Slope | Standard error | Odds ratio | 95% Confidence interval | p Value |
|---|---|---|---|---|---|
| Body mass index > 40 kg/m2 | 1.17 | 0.36 | 3.23 | 1.6–6.5 | 0.001 |
| American Society of Anesthesiologists > 2 | 0.67 | 0.33 | 1.95 | 1.0–3.7 | 0.04 |
| Simultaneous bilateral surgery | 1.77 | 0.44 | 5.85 | 2.5–13.9 | < 0.0001 |
| TKA | 1.05 | 0.34 | 2.85 | 1.5–5.6 | 0.002 |
| Allogenic blood transfusion | 0.75 | 0.31 | 2.11 | 1.1–3.9 | 0.02 |
| Postoperative atrial fibrillation | 1.83 | 0.78 | 6.22 | 1.4–28.5 | 0.02 |
| Postoperative myocardial infarction | 3.02 | 1.16 | 20.4 | 2.1–199.9 | 0.009 |
| Postoperative urinary infection | 1.7 | 0.84 | 5.45 | 1.0–8.7 | 0.04 |
| Longer hospital stay | 0.09 | 0.02 | 1.09 | 1.0–1.1 | 0.0003 |
*multivariate, adjusted analysis.