title: Immunoglobulin subclasses in normal children.
abstract: The range, mean, and normal bounds of serum IgG 1--4 subclass concentrations in children 0--16 years old are given. Levels increase with age, plateauing at different ages. Definition of the normal range will permit better identification of individuals with either low or high levels.
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis*; D007223:Infant
chemical_list: D007074:Immunoglobulin G