Table 1 Baseline data.
RECURR | No | Yes | P-value |
|---|---|---|---|
N | 1607 | 405 | Â |
Age (year) | 58.5 ± 11.5 | 58.5 ± 12.2 | 0.697 |
Weight (kg) | 61.4 ± 10.2 | 60.0 ± 10.4 | 0.011 |
Height (cm) | 162.2 ± 8.4 | 162.3 ± 8.4 | 0.982 |
BMI (kg/m2) | 23.3 ± 3.2 | 22.8 ± 3.1 | 0.004 |
Operation time (min) | 168.6 ± 52.0 | 183.3 ± 55.2 |  < 0.001 |
Tumor size (cm) | 4.3 ± 2.8 | 6.7 ± 3.4 |  < 0.001 |
Sex | Â | Â | 0.980 |
Male | 1110 (69.1%) | 280 (69.1%) | Â |
Female | 497 (30.9%) | 125 (30.9%) | Â |
Location |  |  |  < 0.001 |
Upper | 234 (14.6%) | 65 (16.0%) | Â |
Middle | 499 (31.1%) | 108 (26.7%) | Â |
Lower | 860 (53.5%) | 204 (50.4%) | Â |
Whole | 14 (0.9%) | 28 (6.9%) | Â |
Extent of LN dissection | Â | Â | 0.409 |
D2 | 131 (8.2%) | 28 (6.9%) | Â |
D1 plus | 1476 (91.8%) | 377 (93.1%) | Â |
Chemotherapy |  |  |  < 0.001 |
NO | 950 (59.1%) | 89 (22.0%) | Â |
YES | 657 (40.9%) | 316 (78.0%) | Â |
