Table 4:

Univariable logistic regression of prolonged air leak requiring intervention

Variable	Odds ratio	95% confidence interval	P-value
Age <70 years old (reference ≥70 years old)	0.45	0.19–1.06	0.068
Gender, female (reference male)	1.08	0.47–2.48	0.861
FEV1% <40% (reference ≥40%)	4.74	1.18–2.48	0.028
FVC equal of greater 110% (reference <110%)	0.56	0.07–4.79	0.594
DLCO% <50% (reference ≥50%)	10	2.49–41.84	0.002
Albumin <3 g/dl (reference ≥3 g/dl)	11.04	1.10–110.7	0.041
Current smoker (reference quit >30 days prior)	0.68	0.21–2.19	0.521
Systemic steroid use, yes (reference no)	3.66	1.20–11.17	0.023
Ipsilateral radiation therapy, yes (reference no)	1.30	0.38–4.42	0.680
Neoadjuvant Chemotherapy, yes (reference no)	1.75	0.60–5.09	0.308
Prior ipsilateral Cardiothoracic surgery, yes (reference no)	0.51	0.18–1.47	0.211
Degree of resection (reference wedge)
Segmentectomy	0.54	0.13–2.28	0.398
Lobectomy	0.66	0.26–1.64	0.367
Method (ref thoracotomy)
Thoracoscopic	1.56	0.57–4.23	0.387
Robotic
Lysis of adhesions or re-do, yes (ref no)	0.81	0.35–1.85	0.615

DLCO: diffusion capacity for carbon monoxide; FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity.