Comparison of surgical outcomes and prognosis between wedge resection and simple Segmentectomy for GGO diameter between 2 cm and 3 cm in non-small cell lung cancer: a multicenter and propensity score matching analysis

Table 2 Patient and tumor characteristics of simple segmentectomy and wedge resection

Variables	simple segmentectomy n = 100	wedge resection n = 100	p value
Age (years)			0.14
> 60	65	62
≤ 60	35	38
Sex			0.22
Male	58	53
Female	42	47
Comorbidities			0.08
Coronary artery disease	13	15
Diabetes mellitus	17	20
COPD	17	14
Tumor size (mm)	26.7	25.9	0.43
CTR	0.78	0.75	0.69
Clinical Stage
cTisN0	25	24	0.39
cT1miN0	36	34	0.67
cT1aN0	16	17	0.54
cT1bN0	14	14	0.78
mGGO	45	43	0.54
pGGO	55	57	0.66
Pulmonary function ^a	57.3%	54.2%	0.21
Ejection fraction	64.6%	61.7%	0.15
Histology
Adenocarcinoma	91(91%)	89(89%)	0.09
AIS	29	26
MIA	32	34
IA	30	29
Squamous cell carcinoma	6(6%)	7(7%)	0.07
Others	3(3%)	4(4%)	0.33
Pathologic stage
pTisN0	29	26	0.34
pT1miN0	32	34	0.43
pT1aN0	12	14	0.22
PT1bN0	18	15	0.26
Visceral pleural invasion	1	1
Lymphovascular invasion	3	2

^a FEV1/FVC ratio
COPD Chronic obstructive pulmonary disease, GGO Ground-glass opacity, FEV1 Forced expiratory volume in 1 s, FVC Forced vital capacity, CTR Consolidation tumor ratio

ISSN: 1471-2407