Table 2:
Comparison of patients with all stages undergoing lobectomy by RATS, VATS and OPEN
| Variables | Groups | RATS | VATS | OPEN | P-value |
|---|---|---|---|---|---|
| Overall count, N (%) | 5470 (8.5) | 17 545 (27.1) | 41 661 (64.4) | ||
| Age (years), mean (SD) | 66.8 (9.8) | 66.6 (10.2) | 66.3 (10.3) | 0.001 | |
| Gender | Male (%) | 2421 (44.3) | 7696 (43.9) | 19 895 (47.8) | <0.01 |
| Race, N (%) | White | 4700 (85.9) | 15 235 (86.8) | 36 216 (86.9) | <0.01 |
| Black | 532 (9.7) | 1446 (8.2) | 3833 (9.2) | ||
| Other | 238 (4.4) | 864 (4.9) | 1612 (3.9) | ||
| Histology, N (%) | Squamous | 1214 (22.2) | 3877 (22.1) | 10 998 (26.4) | <0.01 |
| Adeno | 3880 (70.9) | 12 372 (70.5) | 27 163 (65.2) | ||
| Others | 376 (6.9) | 1296 (7.4) | 3500 (8.4) | ||
| Stage, N (%) | I | 4389 (80.4) | 13 678 (78.2) | 29 623 (71.3) | <0.01 |
| II | 730 (13.4) | 2599 (14.9) | 7998 (19.2) | ||
| III | 267 (4.9) | 945 (5.4) | 3137 (7.5) | ||
| IV | 70 (1.3) | 265 (1.5) | 813 (2.0) | ||
| Grade, N (%) | I/II | 3443 (62.9) | 10 747 (61.3) | 24 685 (59.3) | <0.01 |
| III/IV | 1677 (30.7) | 5569 (31.7) | 14 435 (34.6) | ||
| Unknown | 350 (6.4) | 1229 (7.0) | 2541 (6.1) | ||
| Conversion, N (%) | 515 (9.4) | 2878 (16.4) | <0.01 | ||
| CDS, N (%) | 0 | 2674 (48.9) | 9035 (51.5) | 21 045 (50.5) | <0.01 |
| 1 | 2018 (36.9) | 6153 (35.1) | 14 635 (35.1) | ||
| 2 | 778 (14.2) | 2357 (13.4) | 5981 (14.4) | ||
| LNE, mean (SD) | 10.9 (7.9) | 11.3 (8.9) | 10 (7.5) | <0.01 | |
| N stage, N (%) | Upstaged | 595 (11.2) | 1967 (11.7) | 4960 (12.6) | <0.01 |
| Downstaged | 156 (2.9) | 588 (3.5) | 1631 (4.1) | ||
| Same | 4550 (85.8) | 14 220 (79.4) | 32 869 (83.3) | ||
| 30/90-Day mortality (%) | 1.8/3.2 | 1.8/3.1 | 2.4/4.6 | <0.01 | |
| LOS, median (days) | 4 | 5 | 6 | <0.01 | |
| 5-Year survival (HR) | 0.65 (0.61–0.68) | 0.66 (0.65–0.67) | 0.60 (0.60–0.61) | <0.01 |
CDS: Charlson–Deyo Score; HR: hazard ratio; LNE: lymph nodes examined; LOS: length of stay; OPEN: open thoracotomy; RATS: robot-assisted thoracic surgery; SD: standard deviation; VATS: video-assisted thoracic surgery.