Before propensity score matching | After propensity score matching | |||||
---|---|---|---|---|---|---|
NIF-VATS(n = 92) | ID-VATS(n = 149) | P-value | NIF-VATS(n = 92) | ID-VATS(n = 92) | P-value | |
Gender | 0.54 | 0.66 | ||||
Male | 43(46.7%) | 72(48.3%) | 43(46.7%) | 45(48.9%) | ||
Female | 49(53.3%) | 77(51.7%) | 49(53.3%) | 47(51.1%) | ||
Age | 69.8 ± 5.2 | 71.3 ± 6.1 | 0.36 | 69.8 ± 5.2 | 70.9 ± 3.5 | 0.79 |
Smoking History (no. of smokers) (%) | 47(51.1%) | 73(49.0%) | 0.43 | 47(51.1%) | 46(50.0%) | 0.55 |
FEV1(L) | 1.69 ± 0.54 | 1.53 ± 0.67 | 0.42 | 1.69 ± 0.54 | 1.58 ± 0.41 | 0.73 |
%FEV1 (%) | 82.1 ± 17.8 | 83.5 ± 18.6 | 0.72 | 82.1 ± 17.8 | 82.7 ± 16.9 | 0.81 |
FEV1/FVC (%) | 63.8 ± 11.1 | 68.4 ± 10.1 | 0.44 | 63.8 ± 11.1 | 65.5 ± 9.2 | 0.64 |
%DLCO (%) | 77.1 ± 18.3 | 78.6 ± 17.0 | 0.79 | 77.1 ± 18.3 | 77.9 ± 16.3 | 0.83 |
Body mass index (kg/m2) (median and range) | 22.8 ± 2.7 | 23.6 ± 3.3 | 0.31 | 22.8 ± 2.7 | 23.2 ± 2.1 | 0.58 |
Comorbid Chronic lung disease | 0.83 | 0.95 | ||||
COPD | 90(97.8) | 147(98.6%) | 90(97.8) | 90(97.8) | ||
IP | 3(3.2%) | 5(3.3%) | 3(3.2%) | 2(2.2%) | ||
CFPE | 1(1.0%) | 2(1.3%) | 1(1.0%) | 1(1.0%) | ||
IPF | 1(1.0%) | 3(1.5%) | 1(1.0%) | 1(1.0%) | ||
Other Comorbidity | 0.19 | 0.76 | ||||
Hypertension | 8(8.6%) | 19(12.7%) | 8(8.6%) | 9(9.7%) | ||
Diabetes mellitus | 3(3.2%) | 9(6.0%) | 3(3.2%) | 3(3.2%) | ||
coronary heart disease | 1(1.1%) | 4(2.7%) | 1(1.1%) | 1(1.1%) | ||
Other | 4(4.3%) | 6(4.0%) | 3(3.2%) | 2(2.2%) | ||
Maximal lesion size(mm) | 10.2 ± 4.3 | 11.5 ± 3.9 | 0.21 | 10.2 ± 4.3 | 10.9 ± 3.7 | 0.71 |
Lesion location | 0.34 | 0.68 | ||||
Right upper lobe | 25(27.2%) | 40(26.8%) | 25(27.2%) | 23(25.0%) | ||
Right lower lobe | 19(20.6%) | 36(24.1%) | 19(20.6%) | 21(22.8%) | ||
Left upper lobe | 26(28.3%) | 38(25.5%) | 26(28.3%) | 25(27.1%) | ||
Left lower lobe | 22(23.9%) | 35(23.4%) | 22(23.9%) | 23(25.0%) | ||
Type of segmentectomy | 0.245 | 0.73 | ||||
Simple segmentectomy | 30(32.6%) | 58(38.9%) | 30(32.6%) | 32(34.7%) | ||
Complex segmentectomy | 62(67.4%) | 91(61.1%) | 62(67.4%) | 60(65.3%) |