[Retrospective review of the prevalence of hepatitis B virus in several population groups].
Nine different groups of individuals studied from 1969 to 1985 were tested for Hepatitis B Virus (HBV) markers. In 8 groups only HBsAg in serum was tested, in another group: tissular HBsAg, and in two of those groups: serum HBsAg, anti-HBs and anti-HBc. Mean HBsAg prevalence in groups similar to general population was 0.64%; 5% in cirrhotics; HBV prevalence in haemophiliacs was 18.87% by testing serum for HBsAg and anti-HBs; serum HBsAg prevalence in Viral Chronic Active Hepatitis was 43.24%; and Hepatocellular Cancer (HCC) group had a prevalence for HBV of 13.04% when only tissular HBsAg was tested, and 54.29% when serum HBsAg, anti-HBs and anti-HBc were tested in all patients. Costa Rica has a low HBV markers prevalence only similar to what is found in industrial developed countries.
Salom
I
I
Unidad de Hepatologiá, Hospital México, Universidad de Costa Rica (UCR).
Román
S
S
Macaya
G
G
Fonseca
J
J
Brenes
F
F
Mora
C
C
Martén
A
A
D003364:Costa Rica / Q000453:epidemiology; D005260:Female; D006509:Hepatitis B / Q000453:epidemiology*; D006510:Hepatitis B Antibodies / Q000032:analysis*; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006801:Humans; D008297:Male; D015995:Prevalence; D011446:Prospective Studies; D012189:Retrospective Studies; D012959:Socioeconomic Factors
D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens
Revisión retrospectiva de la prevalencia del virus de la hepatitis B (VHB) en varios grupos de población.