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[Hepatitis A seroprevalence in Navarra].
R Soriano1, G Tiberio, V Martínez Artola
1Ciencias de la Salud, Universidad Pública de Navarra, Pamplona.
Revista Clinica Espanola
|March 18, 2004
Summary
Hepatitis A seroprevalence in Navarra is 79.24%, increasing with age. Higher rates were observed in rural areas and among those with livestock contact, indicating persistent community transmission.
Area of Science:
- Epidemiology
- Infectious Diseases
- Public Health
Background:
- Assessing hepatitis A virus (HAV) seroprevalence in Navarra.
- Investigating the impact of improved hygienic-sanitary conditions on prevalence.
- Establishing a baseline for future public health interventions.
Purpose of the Study:
- To determine the current hepatitis A seroprevalence in the Navarra region.
- To analyze seroprevalence trends across different age groups, genders, and geographical areas.
- To identify demographic and environmental factors associated with HAV infection.
Main Methods:
- A random sample of 1,440 individuals over 15 years of age from Navarra.
- Stratified sampling with proportional allocation by sex, age, and healthcare area.
- Detection of total antibodies against Hepatitis A virus (HAV) using enzyme immunoassay.
Main Results:
- The global seroprevalence of HAV antibodies in Navarra was 79.24%.
- Seroprevalence increased significantly with age, ranging from 9.09% in 16-19 year olds to 100% in those over 79.
- Higher seroprevalence was noted in rural areas (82.04%) compared to urban areas (75.77%).
Conclusions:
- The overall hepatitis A seroprevalence in Navarra is substantial at 79.24%.
- Age is a significant factor, with higher prevalence in older age groups.
- Rural inhabitants and individuals with livestock contact exhibit greater seroprevalence, suggesting ongoing transmission routes.