The role of Helicobacter pylori infection in traditionally noncommunic
able diseases as chronic gastritis, peptic ulcer and gastric carcinoma
became more evident during the first decade of H. pylori studies. To
analyse and evaluate the prevalence of H. pylori infection in Estonia
as a population health problem, the data of three randomly selected sa
mples of Estonian population aged over 15 years were used, The infecti
on rate assessments in two representative samples of the population (K
ambja 157 persons and Kuressaare 224 persons) were based on H. pylori
colonization in the gastric mucosa, and in one sample (Karksi-Nuia 146
7 persons) on seroconversion of H, pylori IgG antibodies. The persons
studied were divided into groups according to birth cohorts. The popul
ation studies in Estonia showed a high prevalence of H. pylori infecti
on among Estonians: 73% in the Kuressaare sample, 78% in the Kambja sa
mple, and 87% in the Karksi-Nuia sample. From the Kuressaare populatio
n sample 38 families with 290 persons were included in a family H. pyl
ori infection study and 92.5% of the persons in these families were fo
und to be H, pylori positive, H. pylori infection was frequent in pers
ons who were born at the beginning of this century as well as in those
born after World War It up to 30 years ago. It was concluded that H.
pylori infection is common in Estonia, both in random persons and thei
r families, It is probable that the infection rate of H. pylori depend
s to a great extent on the socioeconomic conditions of this country an
d that acquisition of H, pylori in Estonia starts at an early age.