title: [2000 chronic carriers of HBs antigen].
abstract: By a study of 2000 asymptomatic carriers of the HBs antigen, the following information was obtained: their frequency is 3 times greater in men than in women and twice as great in young subjects as compared with subjects aged over 35 years. However an increase in this frequency is noted beyond 55 years. The titre of the HBs antigen is not related to age, except for low titres, (5.65% of carriers frequent beyond the age of 45 years. The ratio an/ay (major subtypes) is 2.6 in French subjects. It does not vary with age. It is 1.6 in subjects of Group 0. Normal liver function tests were observed in 78.5% of all carriers, (women 91.5%, men 73.4%) and in only 45.6% of those with a high HBs antigen titre.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D001803:Blood Transfusion; D005260:Female; D005602:France; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans; D008111:Liver Function Tests; D008297:Male; D008875:Middle Aged; D012737:Sex Factors
chemical_list: D006514:Hepatitis B Surface Antigens
vernacular_title: Observations chez 2000 porteurs chroniques de l'antigène HBs.