Table 5.

Logistic regression analysis for predictors of the incidence of postoperative pulmonary complications in NSCLC patients with COPD after lobectomy

Variable	Total COPD patients			After propensity score matching
	OR	95% CI	P	OR	95% CI	P
Age (70 years ≦)	2.79	0.53–19.8	0.233	1.53	1.27–78.4	0.036*
Gender (Male)	3.35	0.09–67.1	0.462	1.70	0.45–2.23	0.096
Brinkman Index (400 ≦)	2.94	0.30–82.8	0.387	1.49	0.06–72.3	0.809
Tumor size (30 mm <)	2.74	0.68–13.1	0.160	2.25	0.18–32.9	0.519
Approach (open thoracotomy)	2.24	0.54–11.3	0.273	1.45	0.08–42.7	0.799
Predicted VC (≦2000 mL)	10.16	0.88–276.1	0.064	1.49	0.08–11.4	0.205
Predicted FEV1 (<1500 mL)	31.30	2.34–974.9	0.007*	7.10	1.33–439.2	0.002*
Predicted %FEV1 (≦60%)	9.67	1.24–92.9	0.030*	6.80	1.425–235.0	0.017*
Rehabilitation (−)	5.82	1.11–48.3	0.036*	6.42	1.69–589.1	0.021*

^* P < 0.05.

COPD, chronic obstructive pulmonary disease; FEV ₁, forced expiratory volume in one second; NSCLC, non‐small cell lung cancer; VC, vital capacity.