Serum IgE Concentration in Infantile Atopic Dermatitis

The serum IgE concentration was determined in 34 infants under 1 year of age with infantile atopic eczema. Serum IgE levels varied from lower than 10unit/ml to 900 unit/ml, being lower than 100unit/ml in 30 cases. There was no relationship between the presence of the atopic family history and serum IgE values of babies, but a few of patients with more extensive skin changes had high IgE values. In babies over 4 months of age there was observed a tendency for the serum IgE level to rise, but the rate of increase in the IgE level was mild as compared with that in the children with atopic dermatitis over 1 year of age