title: The frequency of IgG subclass deficiency in children with recurrent respiratory infections.
abstract: We studied the frequency of IgG subclass deficiency in 61 children (ages 1-7 years, mean 3.8 years) with recurrent respiratory tract infections by using the radial immunodiffusion method. The overall frequency of IgG subclass deficiency was found to be 39.3 percent (24 patients). Among 26 children who had major immunoglobulin abnormalities, we found IgG subclass deficiency in 11 patients (42.3%). In children with normal immunoglobulin levels, the frequency of IgG subclass deficiency was 37.1 percent (13 patients).
authors.affiliation: Department of Pediatrics, Cukurova University Faculty of Medicine, Adana.
authors.forename: S
authors.initials: S
authors.lastname: Güneşer
authors.forename: B
authors.initials: B
authors.lastname: Antmen
authors.forename: D
authors.initials: D
authors.lastname: Altintaş
authors.forename: M
authors.initials: M
authors.lastname: Yilmaz
mesh_terms: D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D017099:IgG Deficiency / Q000150:complications* / Q000276:immunology; D007136:Immunoglobulins / Q000097:blood*; D007223:Infant; D008297:Male; D012008:Recurrence; D012141:Respiratory Tract Infections / Q000150:complications* / Q000276:immunology
chemical_list: D007136:Immunoglobulins