Table 5 Oncologic outcomes for laparoscopic versus open resection before and after propensity score matching.
Variables | Before PSM | P value | After PSM | P value | ||
|---|---|---|---|---|---|---|
Laparoscopic group (N = 373) | Open group (N = 542) | Laparoscopic group (N = 318) | Open group (N = 318) | |||
Chemotherapy | ||||||
Preoperative | 1 (0.3) | 6 (1.1) | 0.251 | 1 (0.3) | 2 (0.6) | 0.563 |
Adjuvant | 7 (1.9) | 52 (9.6) | < 0.001 | 7 (2.2) | 7 (2.2) | 0.000 |
Duration of follow-up | ||||||
Mean | 93.6 | 103.5 | < 0.001 | 95.1 | 98.8 | 0.114 |
Median (range) | 88.0 (11.0–164.7) | 106.4 (0.1–167.9) | 88.5 (25.2–164.7) | 100.7 (0.1–144.2) | ||
Recurrence | ||||||
Total number | 13 (3.5) | 72(13.3) | < 0.001 | 10 (3.1) | 16 (5.0) | 0.317 |
Stomach | 5 (1.3) | 16 (3.0) | 0.121 | 5 (1.6) | 3 (0.9) | 0.725 |
Small bowel | 0 (0) | 1 (0.2) | 0.407 | 0 (0) | 1 (0.3) | 0.317 |
Liver | 2 (0.5) | 36 (6.6) | < 0.001 | 1 (0.3) | 7 (2.2) | 0.069 |
Peritoneum | 5 (1.3) | 20 (3.7) | 0.038 | 4 (1.3) | 2 (0.6) | 0.686 |
Bone | 0 (0) | 3 (0.6) | 0.275 | 0 (0) | 0 (0) | – |
Wound | 0 (0) | 1 (0.3) | 0.408 | 0 (0) | 1 (0.3) | 0.317 |
Lung | 0 (0) | 1 (0.2) | 0.407 | 0 (0) | 1 (0.3) | 0.317 |
Axilla | 1 (0.3) | 3 (0.6) | 0.649 | 1 (0.3) | 2 (0.6) | 0.563 |
Alive | ||||||
Total number | 365 (97.9) | 499 (92.1) | < 0.001 | 311 (97.8) | 307 (96.5) | 0.474 |
with recurrence free | 355 (95.2) | 448 (82.7) | < 0.001 | 303 (95.3) | 296 (93.1) | 0.173 |
with recurrence | 10 (2.7) | 51 (9.4) | < 0.001 | 8 (2.5) | 11 (3.5) | 0.643 |
Death | ||||||
Total number | 8 (2.1) | 43 (7.9) | < 0.001 | 7 (2.2) | 11 (3.5) | 0.474 |
Died due to GIST | 3 (0.8) | 21 (3.9) | 0.005 | 2 (0.6) | 5 (1.6) | 0.451 |
Died of other causes | 5 (1.3) | 22 (4.1) | 0.017 | 5 (1.6) | 6 (1.9) | 0.761 |
