Table 1 Demographic and clinical characteristics of CRC patients stratified by BMI condition
|  | Normal weight CRC patients (n = 108) | Overweight CRC patients (n = 62) | P value | Test |
|---|---|---|---|---|
Age [year, mean (SD)] | 58.66 ± 11.80 | 57.02 ± 10.84 | 0.370 | T-Test |
Age (%) | ||||
 < 60 | 57 (52.8) | 38 (61.3) | 0.360 | Pearson Chi-square |
 ≥ 60 | 51 (47.2) | 24 (38.7) |  |  |
Gender (%) | ||||
 Male | 62 (57.4) | 41 (66.1) | 0.339 | Pearson Chi-square |
 Female | 46 (42.6) | 21 (33.9) |  |  |
TNM stage (%) | ||||
 0 | 1 (1.0) | 2 (3.3) | 0.302 | Pearson Chi-square |
 1 | 8 (7.6) | 5 (8.3) |  |  |
 2 | 22 (21.0) | 19 (31.7) |  |  |
 3 | 46 (43.8) | 18 (30.0) |  |  |
 4 | 28 (26.7) | 16 (26.7) |  |  |
Perineural invasion (%) | ||||
 No | 33 (47.8) | 21 (45.7) | 0.970 | Pearson Chi-square |
 Yes | 36 (52.2) | 25 (54.3) |  |  |
Lymph-vascular invasion (%) | ||||
 No | 49 (69.0) | 38 (82.6) | 0.153 | Pearson Chi-square |
 Yes | 22 (31.0) | 8 (17.4) |  |  |