Table 1.

Multivariable analysis for predicting risk factors for infection (n = 673)

Variable	Odds ratio	p value	95% CI
Male	1.92	0.029	1.08–3.49
COR	3.15	0.002	1.58–6.62
LPA	2.25	0.041	1.02–4.88
Tibia	3.17	< 0.001	1.80–5.60

CI = confidence interval; COR = conventional operative room; LPA = longer period of antibiotics.