Table 2 Demographic and clinical characteristics
Factor | Group A (Age ≥ 75) (n = 84) (%) | Group B (Age < 75) (n = 153) (%) | P value |
|---|---|---|---|
Gender, n (%) | Â | Â | 1.000 |
  Male | 46 (54.8) | 83 (54.2) |  |
  Female | 38 (45.2) | 70 (45.8) |  |
ASA score, n (%) | Â | Â | <0.001 |
  1 | 6 (7.1) | 46 (30.1) |  |
  2 | 72 (85.7) | 100 (65.4) |  |
  3 | 6 (7.1) | 7 (4.6) |  |
Charlson score (range) | 0 (0–4) | 0 (0–8) | 0.659 |
Body mass index (range) (kg/m2) | 21.9 (12.7–32.1) | 22.1 (15.0–37.7) | 0.167 |
Tumor location, n (%) | Â | Â | 0.058 |
 Right-sided colon  (cecum, ascending, transverse) | 36 (42.9) | 49 (32.0) |  |
 Left-sided colon  (descending, sigmoid, rectosigmoid) | 36 (42.9) | 63 (41.2) |  |
 Rectum, Proctodeum | 12 (14.3) | 41 (26.8) |  |