Table 2

Stability of antibody responses to Helicobacter pylori antigens over 21 years in 95 subjects* who were IgG seropositive in 1973

No of subjects positive in that assayAntibody level
Assay1973199419731994
*In 95 subjects (mean age 35.0 (12.0) years) who were IgG seropositive in 1973.
†Shown as reciprocal geometric mean titres (RGMT).
‡Shown as mean optical density ratio units (SD).
H pylori IgG†958731793009
H pylori IgA†5954180201
CagA IgG‡69690.75 (0.24)0.80 (0.21)