Table 1.
The basic characteristics of the participants.
| Factors | Subgroup | Test group | Validation group | ||
|---|---|---|---|---|---|
| GC (N = 133) | NH (N = 133) | GC (N = 300) | NH (N = 300) | ||
| Age | |||||
| Range | 31–94 | 31–89 | 23–89 | 23–88 | |
| Median | 61 | 61 | 59 | 59 | |
| IQR | 15 | 16 | 19 | 18 | |
| Gender | |||||
| Male | 92 (69.2%) | 92 (69.2%) | 226 (75.3%) | 226 (75.3%) | |
| Female | 41 (30.8%) | 41 (30.8%) | 74 (24.7%) | 74 (24.7%) | |
| TNM | |||||
| I | 16 (12.0%) | 55 (18.3%) | |||
| II | 21 (15.8%) | 60 (20.0%) | |||
| III | 53 (39.8%) | 85 (28.3%) | |||
| IV | 14 (10.5%) | 29 (9.7%) | |||
| Unknown | 29 (21.8%) | 71 (23.7%) | |||
| Tumor size | |||||
| <5 cm | 48 (36.1%) | 77 (25.7%) | |||
| ≥5 cm | 36 (27.1%) | 71 (23.7%) | |||
| Unknown | 49 (36.8%) | 152 (50.7%) | |||
| Lymphatic metastasis | |||||
| Yes | 68 (51.1%) | 138 (46.0%) | |||
| No | 33 (24.8%) | 83 (27.7%) | |||
| Unknown | 32 (24.1%) | 79 (26.3%) | |||
| Differentiation degree | |||||
| Poor | 52 (39.1%) | 104 (34.6%) | |||
| Moderate | 47 (35.3%) | 112 (37.3%) | |||
| High | 0 (0.0%) | 5 (1.7%) | |||
| Unknown | 34 (25.6%) | 36 (25.4%) | |||
GC: gastric cancer; NH: normal human.