IgG seroprevalence of H pylori infection (n/%) at study entry (responders and non-responders) and at follow up
| Anti-H pylori IgG status at follow up | Anti-H pylori IgG status at study entry | |||
|---|---|---|---|---|
| Seronegative | Borderline | Seropositive | Total | |
| Seronegative | 1315 (52.0) | 83 (3.3) | 22 (0.9) | 1420 (56.2) |
| Borderline | 102 (4.0) | 313 (12.4) | 73 (2.9) | 488 (19.3) |
| Seropositive | 14 (0.6) | 76 (3.0) | 529 (20.9) | 619 (24.5) |
| Responders | 1431 (56.6) | 472 (18.7) | 624 (24.7) | 2527 |
| Non-responders2-150 | 544 (51.8) | 203 (19.3) | 303 (28.9) | 1050 |
↵2-150 Sera were available from 1050 non-responders.