Table 1. Characteristics of elderly CRC patients.
| Patient characteristics | N=87 |
|---|---|
| Age (years) | 80–96 (85.400±3.820) |
| Sex, n (%) | |
| Male | 62 (71.3) |
| Female | 25 (28.7) |
| Smoking, n (%) | |
| Yes | 24 (27.6) |
| No | 63 (72.4) |
| ECOG PS, n (%) | |
| 0 | 0 |
| 1 | 57 (65.5) |
| 2 | 18 (20.7) |
| 3 | 12 (13.8) |
| Histology, n (%) | |
| Adenocarcinoma | 75 (86.2) |
| Mucoid adenocarcinoma | 8 (9.2) |
| Adenosquamous carcinoma | 4 (4.6) |
| Tumor location | |
| Colon, right side | 44 (50.6) |
| Colon, left side | 17 (19.5) |
| Rectum | 26 (29.9) |
| Cancer stage, n (%) | |
| I | 8 (9.2) |
| II | 31 (35.6) |
| III | 12 (13.8) |
| IV | 28 (32.2) |
| Unknown | 8 (9.2) |
| Comorbidity, n (%) | |
| Hypertension | 49 (56.3) |
| Heart | 32 (36.8) |
| Diabetes | 20 (23.0) |
| Lung | 16 (18.4) |
| Cerebrovascular accident | 10 (11.5) |
| Chronic renal failure | 3 (3.4) |
| Any prior tumor | 10 (11.5) |
| No | 1 4(16.1) |
| Primary treatment, n (%) | |
| Surgery | 40 (46.0) |
| Surgery + adjuvant therapy | 17 (19.5) |
| Chemotherapy and/or radiotherapy | 7 (8.0) |
| EMR | 2 (2.3) |
| No therapy | 21 (24.1) |
| Tumor size, n (%) | |
| ≤30 mm | 18 (20.7) |
| ≤50 mm | 25 (28.7) |
| >50 mm | 14 (16.1) |
| Unknown | 30 (34.5) |