Table 1

Statistical features of the two populations of atopic subjects presented in this study

No of nuclear familiesAverage age of children (y)No of affected childrenNo of affected children per familyNo of sib pairs (IgE >100 kU/l)No of sib pairs (specific sensitisation)No of sib pairs (combined definition)No of sib pairs (asthmatic)
Population 13516 11/12822.34850670
Population 23612 1/12882.457737715