Table 1

 Seroprevalence1-152 of increased IgG antibodies to H pylori according to sex and age at study entry in 1982

Age1-151 (years)IgG seropositivity % (n)1-150
MenWomen
3012.9 (451)13.7 (454)
4027.2 (471)24.3 (456)
5025.6 (461)30.4 (448)
6037.1 (450)37.4 (398)
All25.7 (1833)26.1 (1756)

  • ↵1-150 Tests for trend with age: both significant with p values <0.001.

  • ↵1-151 Age at the time of sampling in 1982.

  • ↵1-152 Prevalence of increased IgG antibody levels (⩾400 ELISA units) toH pylori.