Table 2 Relationship between the CBCS and clinicopathological characteristics in patients undergoing potentially curative resection for gastric cancer
Clinicopathological features | CBCS | P value | ||
|---|---|---|---|---|
0 | 1 | 2 | ||
Case | 824 | 673 | 313 | Â |
Age, median (IQR) | 59 | 63 | 66 | < 0.001 |
Sex |  |  |  | < 0.001 |
 Male | 668 (81.1%) | 474 (70.4%) | 232 (74.1%) |  |
 Female | 156 (18.9%) | 199 (29.6%) | 81 (25.9%) |  |
BMI, median, (IQR) | 22.3 | 21.9 | 21.8 | 0.468 |
ASA score |  |  |  | < 0.001 |
 1 | 578 (70.1%) | 399 (59.3%) | 149 (47.6%) |  |
 2 | 238 (28.9%) | 244 (36.3%) | 144 (46.0%) |  |
 3 | 8 (1.0%) | 30 (4.5%) | 20 (6.4%) |  |
Tumor location | Â | Â | Â | 0.001 |
 Upper | 195 (23.7%) | 176 (26.2%) | 70 (22.4%) |  |
 Middle | 119 (14.4%) | 124 (18.4%) | 77 (24.6%) |  |
 Lower | 405 (49.2%) | 290 (43.1%) | 120 (38.3%) |  |
 Mixed | 105 (12.7%) | 83 (12.3%) | 46 (14.7%) |  |
Tumor size (cm), median (IQR) | 4.0 | 4.5 | 5.0 | < 0.001 |
Histologic type | Â | Â | Â | 0.725 |
 Differentiated | 159 (19.3%) | 141 (21.0%) | 62 (19.8%) |  |
 Undifferentiated | 665 (80.7%) | 532 (79.0%) | 251 (80.2%) |  |
Vascular invasion |  |  |  | < 0.001 |
 Negative | 675 (81.9%) | 513 (76.2%) | 218 (69.6%) |  |
 Positive | 149 (18.1%) | 160 (23.8%) | 95 (30.4%) |  |
Perineural invasion | Â | Â | Â | 0.219 |
 Negative | 707 (85.8%) | 575 (85.4%) | 256 (81.8%) |  |
 Positive | 117 (14.2%) | 98 (14.6%) | 57 (18.2%) |  |
pTNM stage |  |  |  | < 0.001 |
 I | 323 (39.2%) | 148 (22.0%) | 44 (14.1%) |  |
 II | 179 (21.7%) | 174 (25.9%) | 80 (25.6%) |  |
 III | 322 (39.1%) | 351 (52.2%) | 189 (60.4%) |  |