Table 5.

Predictors of PPCs.

Predictor a	β value	Odds ratio (95% CI)	P value
Gender	0.634	1.884 (1.024- 3.468)	0.062
Age	0.039	1.040 (1.008- 1.073)	0.014
Smoking status	0.124	1.132 (0.641- 2.000)	0.669
Comorbidity	0.216	1.241 (0.893- 1.724)	0.197
Convert to open	0.052	1.062 (0.317- 3.132)	0.932
Surgical procedures	0.358	1.430 (0.977- 2.096)	0.066
Operation time	0.004	1.004 (0.995- 1.012)	0.397
Intraoperative blood loss	0.001	1.001 (0.996- 1.006)	0.800
ERAS management	-0.880	0.415 (0.229- 0.751)	0.004

^aMultivariate logistic regression analysis: gender (female: 0, male: 1), age (numerical variable), smoking status (never: 0, ever: 1), comorbidity (hypertension, diabetes mellitus, heart disease, brain vascular disease, COPD, no comorbidity: 0, one comorbidity: 1, two comorbidities: 2, ≥3 comorbidities: 3), Convert to open (no: 0, yes: 1), surgical procedures (wedge resection: 0, segmentectomy: 1, lobectomy: 2), operation time (minutes, numerical variable), intraoperative blood loss (ml, numerical variable), ERAS management (no: 0, yes: 1), PPCs (no PPCs: 0, PPCs:1).