Table 4.
pH levels of gastric juices in upper gastrointestinal diseases n (%)
| pH of gastric juice | HS (n = 165) | EU (n = 21 ) | GU (n = 136) | DU (n= 100) | GC (n = 89) |
| Level | |||||
| pH < 2 | 82 (50) | 19 (91) | 33 (24) | 55 (55) | 5 (5) |
| 2 ≤ pH < 3.5 | 46 (28) | 1 (5) | 63 (46) | 40 (40) | 6 (7) |
| 3.5 ≤ pH < 4.0 | 6 (4) | 0 (0) | 5 (4) | 2 (2) | 5 (6) |
| 4.0 ≤ pH < 5.0 | 5 (3) | 0 (0) | 7 (5) | 0 (0) | 5 (6) |
| 5.0 ≤ pH < 6.0 | 5 (3) | 0 (0) | 3 (2) | 1 (1) | 2 (2) |
| 6.0 ≤ pH < 7.0 | 2 (1) | 0 (0) | 2 (2) | 1 (1) | 9 (10) |
| 7 ≤ pH | 19 (12) | 1 (5) | 23 (17) | 1 (1) | 57 (65) |
| mean ± SE | 2.90 ± 0.16 | 1.91 ± 0.28a | 3.42 ± 0.20b | 2.09 ± 0.09a | 6.62 ± 0.22b |
a
P < 0.05,
b
P < 0.001 vs healthy subjects. HS: Healthy subjects; EU: Esophageal ulcer; GU: Gastric ulcer; DU: Duodenal ulcer; GC: Gastric cancer.