Table 1.
Clinicopathological characteristics of the 856 elective colorectal cancer resection cases that fulfilled the selection criteria
| Baseline demographics (N = 856) | Count | % |
|---|---|---|
| Gender | ||
| Male | 482 | 56.3 |
| Female | 374 | 43.7 |
| Age category (years) | ||
| <65 | 389 | 45.4 |
| ≥65 | 467 | 54.6 |
| NLR category | ||
| Low | 318 | 37.1 |
| High | 268 | 62.9 |
| ASA status | ||
| 1 + 2 | 711 | 83.1 |
| 3 + 4 | 145 | 16.9 |
| Surgical approach | ||
| Open | 316 | 36.9 |
| Laparoscopic | 540 | 63.1 |
| Tumor site | ||
| Colon | 618 | 72.2 |
| Rectum | 238 | 27.8 |
| UICC stage | ||
| I | 197 | 23.0 |
| II | 302 | 35.3 |
| III | 283 | 33.1 |
| IV | 74 | 8.6 |
| BMI categories | ||
| Underweight BMI < 18.5 | 18 | 2.2 |
| Normal BMI (18.5–25) | 276 | 32.1 |
| Overweight BMI (25–30) | 349 | 40.8 |
| Obese BMI (>30) | 213 | 24.9 |
NLR neutrophil to lymphocyte ratio, ASA American Society of Anesthesiologists physical status, UICC Union for International Cancer Control, BMI body mass index