IGHE and Alzheimer disease: Umbilical cord blood IgE (CBIgE) level cut-off 0.35 kU/L was significantly higher in newborns from atopic parents than those from non-atopic parents (X2=14.885, p=.001); however, the elevated CBIgE level could not predict childhood AD (p=.184), AS (p=.425) or AR (p=.090).