Hepatitis B Clinical Trial
Official title:
Prevalence of Hepatitis B in Vallés Occidental. Observational Multicentric Study
The aim of this study is to evaluate the prevalence of hepatitis B in Vallés Occidental. Also, describe the stage of the disease, and whether if they are under medical treatment or not.
The hepatitis B virus ( HBV ) is a global health problem . It is estimated that in the world
there are about 350-400 million carriers of HBV surface antigen ( HBsAg ) 1 .
The prevalence in Spain is estimated at a 2-7 % and is considered a second intermediate
prevalence.
For over 20 years, has carried out a program of primary prevention through universal
vaccination against hepatitis B including it in the childhood vaccination schedule and has
already been observed that in some estudi3 the prevalence has declined . For this reason , we
want to evaluate what is the currently prevalence in our area of influence. There aren't
recent studies to assess what is the current status of these patients ( how many , what risk
factors which needs of treatment and with answer ...)
;
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