Table 3.

Univariate analysis of postoperative complications

Characteristic	Postoperative complications		Wald	P	OR	95% CI
	NO(n = 252)	YES(n = 86)
Sexuality/case			14.83	<0.001	2.794	(1.656–4.712)
female	138	26
male	114	60
age/case			2.427	0.119	1.48	(0.904–2.424)
≤ 57y	133	37
>57y	119	49
BSA/case			0.996	0.318	1.284	(0.786–2.099)
≤ 1.64m2	130	39
>1.64m2	122	47
smoking history/case			14.21	<0.001	2.619	(1.587–4.32)
no	170	38
yes	82	48
chronic alcohol consumption /case			6.333	0.12	1.934	(1.157–3.233)
no	186	51
yes	66	35
hypertension/case			4.818	0.028	1.885	(1.070–3.321)
no	207	61
yes	45	25
FEVI/case			6.854	0.009	0.511	(0.309–0.845)
≤ 2.00	75	39
>2.00	177	47
FEV1 Pre / Ref			8.792	0.003	0.466	(0.281–0.772)
/case
≤ 92%	114	55
>92%	138	31
FEV1/FVC%/case			3.036	0.081	0.644	(0.393–1.056)
≤ 86.81%	119	50
>86.81%	133	36
tumor diameter/case			11.12	0.001	2.366	(1.426–3.924)
≤ 2.10	129	28
>2.10	123	58
tumor composition/case			5.244	0.022	1.798	(1.088–2.971)
ground-glass	130	32
solid	122	54
tumor type/case			4.749	0.029	2.022	(1.073–3.808)
AD	221	67
non-AD	31	19
T stage/case			13.59	<0.001	2.571	(1.556–4.247)
0–1	158	34
≥ 2	94	52
N stage/case			8.63	0.003	2.767	(1.403–5.458)
0	230	68
1,2	22	18
clinical staging /case			13.8	<0.001	2.522	(1.600-4.569)
MIS-I	199	50
II-III	53	36
operation time			3.976	0.046	1.655	(1.009–2.714)
≤ 112	137	36
>112	115	50
number of lymph nodes /case			9.538	0.002	2.218	(1.338–3.676)
≤ 10	140	31
>10	112	55

BSA, body surface area. BMI, body mass index. AD, adenocarcinoma. classification as T stage and N stage according to the TNM system and clinical staging