Table 1.
Baseline characteristics of the 2,558 study subjects
| Total (n=2,558) | |
|---|---|
| Age (years, mean±SD) | 57.6±13.4 |
| Male/female | 1,506/1,052 |
| Clinical diagnosis, n (%) | |
| Normal control | 779 (30.5) |
| Benign gastric ulcer | 246 (9.6) |
| Duodenal ulcer | 200 (7.8) |
| Gastric dysplasia | 308 (12.0) |
| Gastric cancer | 1,025 (40.1) |
| H. pylori, n (%) | |
| Positive | 1,541 (60.2) |
| Negative | 991 (38.7) |
| Serum pepsinogens (mean±SD) | |
| Pepsinogen I (ng/ml) | 63.5±50.7 |
| Pepsinogen II (ng/ml) | 22.5±24.3 |
| Pepsinogen I/II ratio | 3.6±2.7 |
| Endoscopic finding | |
| Absence of atrophy | 1,204 |
| Closed-type atrophic gastritis | 743 |
| Open-type atrophic gastritis | 473 |