表 1.

两组患者临床资料比较

Comparison of clinical data between the two groups

Item	Precision group (n=30)	Traditional group (n=30)	t/χ2	P
AAH: atypical adenomatoid hyperplasia; AIS: adenocarcinoma in situ; MIA: microinvasive adenocarcinoma.
Gender			2.400	0.121
Male	18 (60.0%)	12 (40.0%)
Female	12 (40.0%)	18 (60.0%)
Age (Mean±SD, yr)	56.70±10.56	51.80±8.76	1.956	0.055
Smoking history			0.111	0.739
Yes	6 (20.0%)	5 (16.7%)
No	24 (80.0%)	25 (83.3%)
Tumor location			0.352	0.950
Right upper lung	12 (40.0%)	10 (33.3%)
Right lower lung	4 (13.3%)	5 (16.7%)
Left upper lung	8 (26.7%)	9 (30.0%)
Left lower lung	6 (20.0%)	6 (20.0%)
Pathological type			0.314	0.855
AAH	4 (13.3%)	3 (10.0%)
AIS	16 (53.4%)	18 (60.0%)
MIA	10 (33.3%)	9 (30.0%)
Tumor size (Mean±SD, cm)	0.93±0.30	0.88±0.39	0.551	0.584