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Association between serum gastrin-17 and upper gastrointestinal bleeding
| Serum G-17 level | Peptic ulcer, n (%) | Peptic ulcer complicated by bleeding, n (%) | Total, n | P value |
| Normal (≤ 15 pmol/L) | 85 (72.6) | 32 (27.4) | 117 | |
| Elevated (> 15 pmol/L) | 22 (26.8) | 60 (73.2) | 82 | |
| Total | 107 | 92 | 199 | 0.000 |
G-17: Gastrin-17.
