Table 1

 Characteristics of the study population

FamiliesAffectedUnaffectedASP (sibships)Relative pairs
Data show the number of families studied, number of affected and unaffected individuals, number of affected sibpairs (ASP) (sibships in parentheses), and total number of relative pairs.
CD, Crohn’s disease.
CD76186110106 (2 sibships: n = 61)129
(3 sibships: n = 11)
(4 sibships: n = 2)
Mixed13312819 (2 sibships: n = 10)20
(3 sibships: n = 3)
Total89217138125149