Table 4.

Logistic regression predicting development of postoperative pneumonia

	OR	95 % CI	p value
Gender (male vs. female)	4.64	0.491–43.9	0.18
Smoking (yes vs. no)	1.35	0.235–7.72	0.738
Length of operation (min)	1.002	0.998–1.007	0.276
Field of lymph node dissection (3 vs. 2)	1.43	0.516–3.97	0.491
IL-10 Genotype (T/T vs. C/T+C/C)	2.68	1.08–6.67	0.0334

OR odds ratios, CI confidence interval, IL interleukin