Table 3. Bivariate outcomes.
| Outcome measured | Open (N=1,661) | VATS (N=263) | Robotic (N=325) | P value |
|---|---|---|---|---|
| 30-day mortality, n (%) | 11 (0.7) | 3 (1.1) | 2 (0.6) | NS* |
| 90-day mortality, n (%) | 26 (1.6) | 3 (1.1) | 3 (0.9) | NS* |
| Length of stay, median | 4 | 3 | 2 | <0.001** |
| 30-day readmission, n (%) | 90 (5.4) | 11(4.2) | 11 (3.4) | NS |
| Mediastinal invasion, n (%) | 496 (29.9) | 35 (13.3) | 46 (14.2) | <0.001 |
| R0 resection, n (%) | 1,075 (64.7) | 166 (63.1) | 232 (71.4) | 0.032 |
*, Fisher’s exact test; **, Kruskal-Wallis test. NS, not significant (P>0.05); VATS, video-assisted thoracoscopic surgery.