TABLE 2.
Prevalence and levels of serum anti-CagA antibody in H. pylori-positive controls and patients
| Clinical status | No. of patients | % CagA antibody positive (95% CI)a | Pb | CagA level (EU)b | Pc |
|---|---|---|---|---|---|
| Gastric ulcer | 5 | 80.0 (44.9–100) | 1.00 | 1.2 ± 0.7 | 0.90 |
| Duodenal ulcer | 20 | 95.0 (85.5–100) | 0.18 | 1.2 ± 0.9 | 0.87 |
| Nodular gastritis | 15 | 93.3 (80.7–100) | 0.45 | 0.9 ± 0.5 | 0.10 |
| Asymptomatic control | 77 | 81.8 (73.2–90.4) | 1.3 ± 0.8 |
a
CI, confidence interval.
b
Compared with asymptomatic controls.
c
Among children who were CagA antibody positive.