Table 1.
Results of H. pylori detection by each test
| Test | Positives (%) | Negatives (%) | |
|---|---|---|---|
|
T=3months | |||
| Culture (N=305) |
Eradication |
11 (7) |
141 (93) |
| |
Placebo |
99 (65) |
54 (35) |
| H&E stains (N=305) |
Eradication |
19 (12) |
133 (88) |
| |
Placebo |
112 (73) |
41 (27) |
| IHC stains (N=68) |
Eradication |
29 (85) |
5 (15) |
| |
Placebo |
7 (20) |
27 (79) |
| Serology (N=203) |
Eradication |
92 (91) |
9 (9) |
| |
Placebo |
94 (92) |
8 (8) |
|
T=12months | |||
| Serology (N=304) |
Eradication |
96 (64) |
55 (36) |
| Placebo | 138 (90) | 15 (10) | |
H&E: hematoxylin and eosin, IHC: immunohistochemistry. Positive serology was defined as H. pylori IgG-antibody titers ≥ 250 IU/mL.