Table 1.

Surgical site infection in the open- vs closed-plan operating room architecture (without subspecialties).

Variable	Odds Ratio	(95% CI)	P-value*
Operating room architecture	1.34	(0.72–2.49)	0.35
Age	1.01	(0.99–1.03)	0.54
Gender	1.18	(0.64–2.16)	0.59
ASA classification	1.92	(1.16–3.18)	0.01
BMI	1.05	(1.00–1.11)	0.05

*Logistic regression analysis.

% percent, CI confidence interval, ASA American society of anesthesiologists, BMI body mass index.