Table 1.

Comparison of general states between two groups of patients before chemotherapy

	VATS n = 54	Thoracotomy n = 56	p value
Gender (male), no. (%)	33(61.1)	38(67.9)	0.460
Age (year)	62.9 ± 9.6	61.9 ± 11.1	0.596
ECOG Performance Status, no. (%)			0.862
0	29(53.7)	31(55.4)
1	25(46.3)	25(44.6)
Preoperative complications, no. (%)
Hypertension	20(37.0)	13(23.2)	0.114
Diabetes mellitus	4(7.4)	2(3.6)	0.434
Coronary heart disease	6(11.1)	3(5.4)	0.316
Disease of respiratory system	6 (11.1)	11(19.6)	0.216
Preoperative pulmonary function (percent of predicted value)
FVC	100.8 ± 14.1	99.7 ± 19.0	0.749
FEV1	97.1 ± 15.3	97.1 ± 24.1	0.987
DLCO	85.8 ± 16.3	90.4 ± 19.5	0.174

Note: Diseases of respiratory system include old pulmonary tuberculosis, pulmonary interstitial disease and COPD