Table 1 General characteristics in whole cohort before and after propensity score matching
Clinical records | Before PSM | After PSM | ||||||
|---|---|---|---|---|---|---|---|---|
Uniportal cohort (n = 58) | Three-port cohort (n = 524) | Z/X2-value | p-value | Uniportal cohort (n = 57) | Three-port cohort (n = 57) | Z/X2-value | p-value | |
Age (years) | 78(76, 79) | 77(76, 79) | —1.29 | 0.20 | 78(76, 79) | 78(76, 79) | —0.02 | 0.98 |
Sex | 0.03 | 0.87 | 0.33 | 0.57 | ||||
Male | 33(56.90%) | 304(58.00%) | 32(56.10%) | 35(61.40%) | ||||
Female | 25(43.10%) | 220(42.00%) | 25(43.90%) | 22(38.60%) | ||||
Smoking history | 1.42 | 0.23 | 1.72 | 0.20 | ||||
Yes | 26(44.80%) | 193(36.80%) | 25(43.90%) | 32(56.10%) | ||||
No | 32(55.20%) | 331(63.20%) | 32(56.10%) | 25(43.90%) | ||||
Comorbidity | 42(72.40%) | 387(73.90%) | 0.06 | 0.81 | 41(71.90%) | 40(70.20%) | 0.04 | 0.84 |
Diabetes mellitus | 12(20.70%) | 91(17.40%) | 0.40 | 0.53 | 11(19.30%) | 13(22.80%) | 0.21 | 0.65 |
Hypertension | 29(50.00%) | 242(46.20%) | 0.31 | 0.58 | 28(49.10%) | 28(49.10%) | < 0.0001 | > 0.99 |
COPD | 3(5.20%) | 57(10.90%) | 1.84 | 0.18 | 3(5.30%) | 1(1.80%) | 0.26 | 0.61 |
CHD | 8(13.80%) | 67(12.80%) | 0.05 | 0.83 | 8(14.00%) | 7(12.30%) | 0.08 | 0.78 |
History of other cancer | 9(15.50%) | 55(10.50%) | 1.35 | 0.25 | 8(14.00%) | 5(8.80%) | 0.78 | 0.38 |
FEV1% | 100.25(88.65, 112.68) | 103.67(90.30, 115.13) | —1.22 | 0.22 | 100.00(88.50, 113.05) | 98.00(86。35, 106.05) | —0.56 | 0.57 |
FVC% | 106.20(90.88, 115.25) | 109.57(97.55, 118.88) | —1.50 | 0.13 | 105.80(90.75, 115.70) | 103.20(90.80, 109.94) | —0.85 | 0.39 |
Degree of fissure development | 5.00 | 0.08 | —1.18 | 0.08 | ||||
No developemnt | 1(1.70%) | 9(1.70%) | 1(1.80%) | 0(0.00%) | ||||
Incomplete development | 27(46.60%) | 323(61.60%) | 27(47.40%) | 19(33.33%) | ||||
Well development | 30(51.70%) | 192(36.60%) | 29(50.90%) | 38(66.70%) | ||||
Degree of pleural adhesion | 1.35 | 0.25 | 1.90 | 0.17 | ||||
Have adhesion | 48(82.80%) | 398(76.00%) | 48(84.20%) | 42(73.70%) | ||||
No adhesion | 10(17.20%) | 126(24.00%) | 9(15.80%) | 15(26.30%) | ||||
Tumor size (cm) | 2.00(1.50, 2.93) | 2.20(1.50, 3.20) | —0.77 | 0.44 | 2.00(1.50, 2.95) | 2.00(1.55, 3.00) | —0.21 | 0.83 |
TNM stage | —1.53 | 0.13 | —1.81 | 0.84 | ||||
IA | 42(72.40%) | 338(64.50%) | 41(71.90%) | 42(73.70%) | ||||
IB | 8(13.80%) | 64(12.20%) | 8(14.00%) | 8(14.00%) | ||||
IIA | 5(8.60%) | 25(4.80%) | 5(8.80%) | 1(1.80%) | ||||
IIB | 0(0.00%) | 34(6.50%) | 0(0.00%) | 3(5.30%) | ||||
IIIA | 2(3.40%) | 50(9.50%) | 2(3.50%) | 3(5.30%) | ||||
IIIB | 1(1.70%) | 13(2.50%) | 1(1.80%) | 0(0.00%) | ||||
Operative procedure | 0.16 | 0.92 | 3.51 | 0.17 | ||||
Lobectomy | 35(60.30%) | 317(60.50%) | 35(61.40%) | 26(45.60%) | ||||
Segmentectomy | 11(19.00%) | 108(20.60%) | 11(19.30%) | 19(33.30%) | ||||
Pulmonary wedge resection | 12(20.70%) | 99(18.90%) | 11(19.30%) | 12(21.10%) | ||||
Complete resection | – | > 0.99 | – | – | ||||
Yes | 58(100.00%) | 521(99.40%) | 57(100.00%) | 57(100.00%) | ||||
No | 0(0.00%) | 3(0.60%) | 0(0.00%) | 0(0.00%) | ||||