Table 2.
Preoperative patient’s characteristics after PSM
| Variables | Open (N = 93) | VATS (N = 62) | Combined (N = 155) | P-value |
|---|---|---|---|---|
| Age | 62/68/72 | 58/69/74 | 60/68/72 | 0.662 |
| Gender | 0.786 | |||
| Male | 62% (58) | 65% (40) | 63% (98) | |
| Female | 38% (35) | 35% (22) | 37% (57) | |
| BMI(Kg/m2) | 26 (IQR 23–29) | 25 (IQR 23–28) | 25 (IQR 23–28) | 0.605 |
| Diabetes | 15% (14) | 16% (10) | 15% (24) | 0.856 |
| Chronic renal failure | 4% (4) | 6% (4) | 5% (8) | 0.3 |
| Polivasculopathy | 41% (38) | 53% (33) | 46% (71) | 0.4 |
| Hypertension | 59% (55) | 47% (29) | 54% (84) | 0.1 |
| History of malignancies | 18% (17) | 18% (11) | 18% (28) | 0.6 |
| COPD | 15% (14) | 16% (10) | 15% (24) | 0.609 |
| Ischemic heart disease | 19% (18) | 16% (10) | 18% (28) | 0.902 |
| FEV1(%) | 90 (IQR 77–101) | 95 (IQR 82–103) | 91 (IQR 80–102) | 0.238 |
| DLCO(%) | 71 (IQR 60–84) | 76 (IQR 59–81) | 73 (IQR 60–83) | 0.763 |
| Smoking history | 0.698 | |||
| Never | 17% (16) | 19% (12) | 18% (28) | |
| Previous | 27% (25) | 21% (13) | 25% (38) | |
| Active | 56% (52) | 60% (37) | 57% (89) | |
| Pack year | 40 (IQR 21–52) | 35 (IQR 20–43) | 40 (IQR 20–50) | 0.2 |
| ASA > 3 | 35% (33) | 35% (22) | 35% ( 55) | 1 |
| Central tumor | 34% (32) | 34% (21) | 34% (53) | 0.945 |
| Peripheral tumor | 66% (61) | 66% (41) | 66% (102) | |
| cTNM 8th | 0.643 | |||
| Stage IIa + b | 11% (10) | 6% (4) | 9% (14) | |
| Stage IIIa | 74% (69) | 79% (49) | 76% (118) | |
| Stage IIIb | 15% (14) | 15% (9) | 15% (23) | |
| cN disease | 0.586 | |||
| N0 | 8% (7) | 8% (5) | 8% (12) | |
| N1 | 30% (28) | 23% (14) | 27% (42) | |
| N2 | 62% (58) | 69% (43) | 65% (101) |
IQR interquartile range, BMI body mass index, COPD chronic obstructive pulmonary disease, FEV1 forced expiratory volume in 1 s, DLCO diffusion lung carbon monoxide