Basic characteristics of the study population with respect to low (<0.9 kU/l) and high (≥0.9 kU/l) CB-IgE and available data at follow-up (questionnaire+register data versus register data alone).

CB-IgE = Cord blood immunoglobulin E; QN = questionnaire; SGA = Small for Gestational Age; LGA = Large for Gestational Age; 1entered as continuous variable in the regression model, dichotomized here for descriptive reasons; 2n = 1,225/1,656; 3n = 1,209/1,635; 4n = 1,226/1,660. Significance levels are displayed for the association between the different ratios of low versus high CB-IgE between the groups.