1.
Patient demographics
| Variable | n (%) | P | |
| LADG (N=667) | TLDG (N=655) | ||
| BMI, body mass index; ASA, American Society of Anesthesiologist; LADG, laparoscopy-assisted distal gastrectomy; TLDG, totally laparoscopic distal gastrectomy. | |||
| Sex | 0.41 | ||
| Male | 433 (64.9) | 439 (67.0) | |
| Female | 234 (35.1) | 216 (33.0) | |
Age (
) (year)
|
59.8±11.9 | 61.0±12.1 | 0.06 |
BMI (
) (kg/m2)
|
24.0±3.3 | 24.1±3.6 | 0.53 |
| ASA score | 0.38 | ||
| 1 | 202 (30.3) | 232 (35.4) | |
| 2 | 430 (64.5) | 374 (57.1) | |
| 3 or more | 35 (5.2) | 49 (7.5) | |
| Tumor location | 0.64 | ||
| Antrum | 375 (56.2) | 373 (56.9) | |
| Lower body | 284 (42.7) | 276 (42.1) | |
| Mid body | 8 (1.2) | 6 (1.0) | |
| pT category | 0.01 | ||
| pT1 | 557 (83.5) | 511 (78.0) | |
| pT2 | 63 (9.4) | 73 (11.1) | |
| pT3 | 38 (5.7) | 65 (9.9) | |
| pT4 | 9 (1.3) | 6 (0.9) | |
| pN category | 0.60 | ||
| pN0 | 552 (82.8) | 526 (80.3) | |
| pN1 | 74 (11.1) | 67 (10.2) | |
| pN2 | 31 (4.6) | 45 (6.9) | |
| pN3 | 10 (1.5) | 17 (2.6) | |
| Stage | 0.05 | ||
| I | 574 (86.1) | 542 (82.7) | |
| II | 71 (10.6) | 78 (11.9) | |
| III | 22 (3.3) | 35 (5.3) | |
| Lymph node dissection | 0.03 | ||
| D1+ | 587 (88.0) | 545 (83.2) | |
| D2 or more | 80 (12.0) | 110 (16.8) | |
| Reconstruction | 0.16 | ||
| Billroth I | 180 (27.0) | 175 (26.7) | |
| Billroth II | 466 (69.9) | 435 (66.4) | |
| Roux-en-Y | 21 (3.1) | 45 (6.9) | |