Table 1. Clinicopathological characteristics.
| Characteristics | All Patients | After propensity matching | |||||
|---|---|---|---|---|---|---|---|
| LDG (n=60) | ODG (n=228) | P-value | LDG (n=60) | ODG (n=60) | P-value | ||
| Sex | 0.553 | 0.700 | |||||
| Male | 38 (63.3%) | 156 (68.4%) | 38 (63.3%) | 41 (68.3%) | |||
| Female | 22 (36.7%) | 72 (31.6%) | 22 (36.7%) | 19 (31.7%) | |||
| Age (yr) | 62.5±14.2 | 61.4±12.7 | 0.561 | 62.5±14.2 | 62.4±10.4 | 0.965 | |
| BMI (kg/m2) | 24.3±4.3 | 23.3±3.1 | 0.096 | 24.3±4.3 | 24.1±3.5 | 0.707 | |
| ASA score | 0.083 | 0.481 | |||||
| 1 | 4 (6.7%) | 12 (5.3%) | 4 (6.7%) | 6 (10.0%) | |||
| 2 | 51 (85.0%) | 163 (71.5%) | 51 (85.0%) | 45 (75.0%) | |||
| 3 | 5 (8.3%) | 51 (22.4%) | 5 (8.3%) | 8 (13.3%) | |||
| 4 | 0 (0.0%) | 2 (0.9%) | 0 (0.0%) | 1 (1.7%) | |||
| Clinical staging according to AJCC/UICC 7th edition | <0.001 | 0.621 | |||||
| IB | 22 (36.7%) | 28 (12.3%) | 22 (36.7%) | 17 (28.3%) | |||
| II | 29 (48.3%) | 115 (50.4%) | 29 (48.3%) | 33 (55.0%) | |||
| III | 9 (15.0%) | 85 (37.3%) | 9 (15.0%) | 10 (16.7%) | |||
| Pathological staging according to AJCC/UICC 7th edition | 0.647 | 0.696 | |||||
| IIA | 25 (41.7%) | 72 (31.6%) | 25 (41.7%) | 22 (36.7%) | |||
| IIB | 12 (20.0%) | 48 (21.1%) | 12 (20.0%) | 16 (26.7%) | |||
| IIIA | 9 (15.0%) | 44 (19.3%) | 9 (15.0%) | 10 (16.7%) | |||
| IIIB | 10 (16.7%) | 42 (18.4%) | 10 (16.7%) | 6 (10.0%) | |||
| IIIC | 4 (6.7%) | 22 (9.6%) | 4 (6.7%) | 6 (10.0%) | |||
| Histology | 1.000 | 0.451 | |||||
| Differentiated | 20 (33.3%) | 74 (32.5%) | 20 (33.3%) | 25 (41.7%) | |||
| Undifferentiated | 40 (66.7%) | 154 (67.5%) | 40 (66.7%) | 35 (58.3%) | |||
| Tumor size (cm) | 4.6±2.7 | 5.7±2.2 | 0.001 | 4.6±2.7 | 4.5±1.6 | 0.808 | |
| Adjuvant chemotherapy | 0.087 | 0.708 | |||||
| No | 22 (36.7%) | 56 (24.6%) | 22 (36.7%) | 25 (41.7%) | |||
| Yes | 38 (63.3%) | 172 (75.4%) | 38 (63.3%) | 35 (58.3%) | |||
| Follow-up (mo) | 38.5±22.8 | 40.3±28.5 | 0.608 | 38.5±22.8 | 38.5±30.8 | 0.997 | |
LDG = laparoscopic distal gastrectomy; ODG = open distal gastrectomy; BMI = body mass index; ASA = American Society of Anesthesiologists; AJCC/UICC = American Joint Committee on Cancer/Union for International Cancer Control.