TABLE 3.
Frequency and magnitude of IgG anti-urease response in patients infected with H. pylori with or without antibodies against CagAa
| Age group and anti-CagA status | n | Response to urease
|
|
|---|---|---|---|
| No. (%) seropositive | Magnitude (ELISA units) | ||
| Children | |||
| Anti-CagA positive | 62 | 8 (12.9) | 3.3 ± 1.6 |
| Anti-CagA negative | 68 | 13 (19.1) | 2.3 ± 1.1 |
| Adults | |||
| Anti-CagA positive | 208 | 114 (54.8)** | 5.9 ± 3.3 |
| Anti-CagA negative | 52 | 38 (73.1) | 6.3 ± 3.3 |
a
Infection was defined serologically, with a whole-cell antigen ELISA; * *, P < 0.01, anti-CagA positive versus anti-CagA negative.