Table 1 Characteristics and surgery information of patients (RAN vs RAY)
Group | RAN n = 406 (41.86%) | RAY n = 564 (58.14%) | p value | |
|---|---|---|---|---|
Characteristics of patients | ||||
 Gender, n (%) | Male | 236 (58.27%) | 341 (60.46%) | 0.507 |
Female | 169 (41.73%) | 223 (39.54%) | ||
 Age, years old, Mean ± SD | 57.71 ± 13.11 | 58.06 ± 12.82 | 0.682 | |
 Age cohorts, years old, n (%) | ≤ 40 | 33 (8.13%) | 50 (8.88%) | 0.421 |
40–60 | 197 (48.52%) | 249 (44.23%) | ||
> 60 | 176 (43.35%) | 264 (46.89%) | ||
 Height, cm, Mean ± SD | 162.53 ± 7.64 | 162.66 ± 9.30 | 0.846 | |
 Weight, kg, Mean ± SD | 60.40 ± 10.02 | 60.47 ± 10.57 | 0.911 | |
 BMI, kg/m2, Mean ± SD | 23.03 ± 3.04 | 22.81 ± 3.23 | 0.353 | |
Surgery information | ||||
 The operation type, n (%) | Laparotomy | 260 (70.65%) | 469 (83.45%) | <  0.001a |
Laparoscopically surgery | 104 (28.26%) | 82 (14.59%) | ||
Superficial abdominal wall surgery | 3 (0.82%) | 9 (1.0%) | ||
Laparoscopic transfer to open surgery | 1 (0.27%) | 2 (0.36%) | ||
 Tumor location, n (%) | Esophagus or stomach | 76 (22.75%) | 204 (41.89%) | <  0.001a |
Jejunum or ileum | 8 (2.40%) | 21 (4.31%) | ||
Colon or rectum | 250 (74.85%) | 262 (53.80%) | ||