Table 4. Multivariable logistic regression analysis of risk factors for postoperative complications.

Variables	Odds ratio	95% CI	P value*
Smoking index ≥400 pack-years (vs. <400)	1.020	0.450–2.300	0.968
Body mass index <18.5 (vs. ≥18.5)	1.536	0.654–3.597	0.324
Male sex (vs. female)	5.780	2.681–12.500	<0.001
Sarcopenia (vs. non-sarcopenia)	21.00	10.30–42.80	<0.001
FEV1/FVC <70.0 (vs. ≥70.0)	1.610	0.817–3.170	0.169

*, logistic regression analysis was used. CI, confidence interval; FVC, forced vital capacity; FEV1, forced expiratory volume in 1 second.