表 2. Intraoperative and postoperative conditions of patients in the two groups.

两组患者术中及术后情况

Intraoperative and post- operative conditions	Pneumoconiosis group (n=21)	General group (n=144)	P
*Postoperative complications included severe air leak, lung infection, and surgical site infection. # Median (P25, P75).
Complication*/case (%)	12 (57.14)	15 (10.42)	0.012
Surgical method alteration/case (%)	10 (47.62)	16 (11.11)	0.010
Lymph-nodes calcified/case (%)	12 (57.14)	27 (18.75)	0.010
Dense pleural adhesion/case (%)	6 (28.57)	13 (9.03)	0.020
Operative time#/min	141 (140, 226)	126 (125, 198)	0.590
Intraoperative blood loss volume#/mL	200 (100, 400)	100 (50, 200)	0.110
Postoperative intubation time#/d	6 (5, 7)	5 (4, 5)	0.040
Postoperative hospital stay#/d	10 (9, 11)	7 (6, 9)	<0.010
Tumor stage/case (%)
Ⅰ	4 (19.05)	55 (38.19)	0.040
Ⅱ/Ⅲ	17 (80.95)	89 (61.81)	0.010