Table 1 Comparison of baseline information before and after propensity score matching between the two groups [cases (%)/\(\:\stackrel{\text{-}}{\text{x}}\)±s]
Characteristic | Before PSM | After PSM | |||||
|---|---|---|---|---|---|---|---|
RATS group (n = 125) | VATS group (n = 135) | P value | RATS group (n = 113) | VATS group (n = 113) | P value | ||
Sex | 0.465 | 0.287 | |||||
Male | 61(48.8) | 72(53.3) | 51(45.1) | 59(52.2) | |||
Female | 64(51.2) | 63(46.7) | 62(54.9) | 54(47.8) | |||
Age (years) | 50.16 ± 3.43 | 50.65 ± 3.53 | 0.256 | 50.91 ± 5.24 | 50.41 ± 2.67 | 0.362 | |
BMI (kg/m2) | 24.53 ± 1.65 | 24.25 ± 1.83 | 0.189 | 24.31 ± 1.53 | 24.15 ± 1.46 | 0.415 | |
Smoking history | 0.792 | 0.749 | |||||
Yes | 27(21.6) | 31(23.0) | 24(21.2) | 26(23.0) | |||
No | 98(78.4) | 104(77.0) | 89(78.8) | 87(77.0) | |||
Basic Diseases | 0.739 | 0.679 | |||||
Yes | 46(36.8) | 47(34.8) | 43(38.1) | 40(35.4) | |||
No | 79(63.2) | 88(65.2) | 70(61.9) | 73(64.6) | |||
Tumor size (cm) | 3.28 ± 0.63 | 3.39 ± 0.62 | 0.175 | 3.27 ± 0.62 | 3.24 ± 0.60 | 0.770 | |
Tumor location | 0.031 | 0.188 | |||||
Front | 67(53.6) | 90(66.7) | 65(57.5) | 75(66.4) | |||
Middle | 15(12.0) | 18(13.3) | 13(11.5) | 15(13.3) | |||
Posterior | 43(34.4) | 27(20.0) | 35(31.0) | 23(20.3) | |||
Type of pathology | 0.110 | 0.725 | |||||
Thymoma | 32(25.6) | 50(37.1) | 31(27.3) | 38(33.6) | |||
Benign cysts | 39(31.2) | 47(34.8) | 38(33.6) | 41(36.2) | |||
Teratoma | 3(2.4) | 3(2.2) | 2(1.8) | 3(2.7) | |||
Thymic hyperplasia | 3(2.4) | 5(3.7) | 3(2.7) | 2(1.8) | |||
Neurogenic tumor | 43(34.4) | 27(20.0) | 36(31.9) | 26(23.0) | |||
Other | 5(4.0) | 3(2.2) | 3(2.7) | 3(2.7) | |||