Table 6.

Multivariate analysis of independent factors associated with surgical site infection

Factor	Odds ratio	95% CI	P‐value
Male	1.53	1.13–2.08	0.006
Chronic liver dysfunction	1.49	1.05–2.11	0.025
Postoperative blood glucose level >150 mg/dL	1.81	1.26–2.60	0.001
Wound class 3, 4	2.50	1.23–5.08	0.011
Esophagectomy	6.40	3.74–11.00	<0.001
Stoma construction	2.76	1.96–3.88	<0.001
Prolonged surgery	2.01	1.48–2.73	<0.001
Laparoscopic surgery	0.25	0.10–0.66	0.005

95% CI, 95% confidence interval.