title: Hepatitis B infection in Yemenis in Sana'a: pattern and risk factors.
abstract: A cross-sectional seroepidemiological study was conducted among 2652 individuals (age range: 1 month-95 years; median 23 years) who presented at Sana'a Central Health Laboratory in response to a campaign to control hepatitis B virus. Screening was carried out by reverse passive haemagglutination. Specificity of positive samples was determined by enzyme immunoassay. Of 2321 participants, 7.4% were carriers of hepatitis B surface antigen. Risk factors determined by bivariate analysis were age, sex, residence, exposure to cutting and puncturing tools and blood transfusion. Multivariate analysis revealed age to be the best predictor of the carrier rate of hepatitis B virus.
authors.affiliation: Department of Medical Laboratory Science, Al-Hudaydah University, Al-Hudaydah, Republic of Yemen.
authors.forename: K A
authors.initials: KA
authors.lastname: Al-Nassiri
authors.forename: Y A
authors.initials: YA
authors.lastname: Raja'a
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D002353:Carrier State / Q000097:blood / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006386:Hemagglutination Tests; D006509:Hepatitis B / Q000097:blood / Q000453:epidemiology* / Q000209:etiology / Q000517:prevention & control; D006514:Hepatitis B Surface Antigens / Q000097:blood; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011159:Population Surveillance; D011237:Predictive Value of Tests; D011677:Punctures / Q000009:adverse effects; D012111:Residence Characteristics; D012307:Risk Factors; D016036:Seroepidemiologic Studies; D017678:Sex Distribution; D065227:Transfusion Reaction; D015006:Yemen / Q000453:epidemiology
chemical_list: D006514:Hepatitis B Surface Antigens