Table I.
The baseline characteristics of the study patients.
| No. of patients (%) | |||
|---|---|---|---|
| Characteristics | Group A (70–79 years) (n=137) | Group B (≥80 years) (n=54) | P-value |
| Age (years) | – | ||
| Median | 74 | 83 | |
| (Range) | (70–79) | (80–94) | |
| Sex | 0.552 | ||
| Male | 88 (64.2) | 32 (59.3) | |
| Female | 49 (35.8) | 22 (40.7) | |
| ASA-PS | 0.048 | ||
| 1 | 62 (45.3) | 16 (29.6) | |
| 2–3 | 75 (54.7) | 38 (70.4) | |
| Tumor location | 0.539 | ||
| Right-side colon | 49 (35.8) | 24 (44.4) | |
| Left-side colon-rectum | 88 (64.2) | 30 (55.6) | |
| Clinical T factor | 0.631 | ||
| T1 | 22 (16.1) | 10 (18.5) | |
| T2 | 22 (16.1) | 12 (22.2) | |
| T3 | 49 (35.6) | 21 (38.9) | |
| T4 | 44 (32.2) | 11 (20.4) | |
| Clinical N factor | 0.630 | ||
| Negative | 83 (60.6) | 33 (38.9) | |
| Positive | 54 (39.4) | 21 (61.1) | |
ASA-PS, American Society of Anesthesiology physical status.