Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2003-10-2
pubmed:abstractText
We compared the seroepidemiologic patterns of Helicobacter pylori and hepatitis A virus (HAV) infections among participants in 2 independent cross-sectional studies conducted in Japan in 1986 and 1994. Subgroups were monitored with successive blood sampling. H. pylori and HAV infection status was defined by results of enzyme-linked immunosorbent assay. In 1986, the prevalence of H. pylori infection and HAV infection, respectively, were 80% and 70% among adults and 31% and 5% among children. The prevalence of both infections increased with age. Concordant infections were found in 74.5% of adults (kappa=0.2) versus 2% of children (kappa=0.05). During the 9-year study period, the incidence of H. pylori infection was 1.1% among adults and 2% among children. The seroprevalence of HAV remained constant. The disparity between the increase in prevalence of H. pylori and HAV infection with age is likely associated with improvements in hygienic practices. The discordance between the presence of the infections among younger persons is evidence against a common source and/or vehicle for transmission.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1537-6591
pubmed:author
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1067-72
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Seroepidemiology of Helicobacter pylori and hepatitis A virus and the mode of transmission of infection: a 9-year cohort study in rural Japan.
pubmed:affiliation
Department of Medicine, Veterans Affair Medical Center and Baylor College of Medicine, Houston, Texas 77030, USA. Hmalaty@bcm.tmc.edu
pubmed:publicationType
Journal Article