title: [The incidence of hepatitis B markers in pregnant women at their first consultation in metropolitan-area health centers, São Paulo, Brazil].
abstract: Hepatitis B is a severe disease when acquired during the neonatal period. The identification of the infected pregnant women allows prevention of newborn infection by active and passive immunization soon after birth. We studied pregnant women in their first visit to eight different primary medical centers in Butantan, a subdistrict of S. Paulo city. 477 samples were tested for anti-HBc. From 44 (9.2%) anti-HBc positive samples, 2 (0.4%) were HBsAg positive and 37 (7.7%) were anti-HBs positive. A risk factor for hepatitis B could only be detected in 8 (18.9%) of the 44 anti-HBc positive samples.
authors.affiliation: Instituto Adolfo Lutz, Laboratório de Hepatite, São Paulo, Brasil.
authors.forename: E C
authors.initials: EC
authors.lastname: Sabino
authors.forename: E M
authors.initials: EM
authors.lastname: Guerra
authors.forename: I T
authors.initials: IT
authors.lastname: Oba
authors.forename: A M
authors.initials: AM
authors.lastname: Spina
authors.forename: A J
authors.initials: AJ
authors.lastname: Vaz
mesh_terms: D000328:Adult; D015415:Biomarkers / Q000097:blood; D001938:Brazil / Q000453:epidemiology; D016009:Chi-Square Distribution; D003151:Community Health Centers / Q000706:statistics & numerical data; D005260:Female; D006509:Hepatitis B / Q000453:epidemiology / Q000276:immunology*; D006510:Hepatitis B Antibodies / Q000097:blood*; D006511:Hepatitis B Antigens / Q000097:blood*; D006801:Humans; D015994:Incidence; D008875:Middle Aged; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000453:epidemiology / Q000276:immunology*; D012017:Referral and Consultation / Q000706:statistics & numerical data; D016036:Seroepidemiologic Studies; D014505:Urban Population / Q000706:statistics & numerical data
chemical_list: D015415:Biomarkers; D006510:Hepatitis B Antibodies; D006511:Hepatitis B Antigens
vernacular_title: Frequência de marcadores de hepatite B em gestantes de primeira consulta em centros de saúde de área metropolitana, São Paulo, Brazil.