Table 1. Clinical characteristics of healthy volunteers and patients with atrophic gastritis and gastric cancer.
| Characteristic | Test Group | Validation Group | ||||
|---|---|---|---|---|---|---|
| HV | AG | GC | HV | AG | GC | |
| n | 30 | 30 | 64 | 30 | 24 | 23 |
| Age, y, mean ± SD | 52.7 ± 7.4 | 52.3 ± 9.0 | 56.0 ± 9.2 | 52.9 ± 9.4 | 52.5 ± 8.9 | 55.3 ± 10.1 |
| Sex, male/female | 20/10 | 21/9 | 43/21 | 20/10 | 16/8 | 16/7 |
| H.P. infection (positive/negative) | 22/8 | 47/17 | 18/6 | 17/6 | ||
| Pathological (AJCC)a | ||||||
| I | 21 | 7 | ||||
| II | 18 | 8 | ||||
| III | 25 | 8 | ||||
| IV | ||||||
| Tumor (T), n, | ||||||
| T1 | 21 | 8 | ||||
| T2 | 9 | 2 | ||||
| T3 | 2 | 1 | ||||
| T4 | 32 | 12 | ||||
| Node (N), n, | ||||||
| N0 | 30 | 10 | ||||
| N1 | 6 | 3 | ||||
| N2 | 16 | 4 | ||||
| N3 | 12 | 6 | ||||
| Metastasis (M), n, | ||||||
| M0 | 64 | 23 | ||||
| M1 | 0 | 0 | ||||
aAJCC, American Joint Committee on Cancer staging system (7th edition).