Table 1. Patient characteristics.
| Characteristic | No. of patients (n = 264) |
% |
|---|---|---|
| Age, years | ||
| Median | 75 | |
| Range | 70–91 | |
| Age distribution | ||
| 70–74 | 121 | 45.8 |
| 75–79 | 86 | 32.6 |
| 80–84 | 45 | 17.0 |
| ≥85 | 12 | 4.5 |
| Sex | ||
| Male | 174 | 65.9 |
| Female | 90 | 34.1 |
| ECOG-PS | ||
| 0 | 97 | 36.7 |
| 1 | 118 | 44.7 |
| 2 | 25 | 9.5 |
| 3 | 18 | 6.8 |
| 4 | 5 | 1.9 |
| Unknown | 1 | 0.4 |
| Charlson comorbidity index | ||
| 0 | 186 | 70.5 |
| 1 | 61 | 23.1 |
| ≥2 | 17 | 6.4 |
| Tumor type | ||
| Carcinoma | ||
| Esophageal | 58 | 22.0 |
| Gastric | 40 | 15.2 |
| Colorectal | 36 | 13.6 |
| Pancreatic | 34 | 12.9 |
| Bile tract | 17 | 6.4 |
| Unknown primary | 15 | 5.7 |
| Head and neck | 13 | 4.9 |
| Others a | 16 | 6.1 |
| Sarcoma | 17 | 6.4 |
| Hematological malignancy | 5 | 1.9 |
| Other malignant tumors b | 13 | 4.9 |
| TNM stage of solid tumor, n = 259 | ||
| I | 0 | 0 |
| II | 7 | 2.7 |
| III | 25 | 9.7 |
| IV | 226 | 87.3 |
| unknown | 1 | 0.4 |
ECOG-PS denotes Eastern Cooperative Oncology Group performance status.
a: Other carcinomas include breast, lung, thyroid, duodenal, anal canal, renal cell, urothelial, prostate, and ovarian carcinoma.
b: Other malignant tumors include mesothelioma, malignant melanoma, pseudomyxoma, and neuroendocrine tumor.