Characteristics of CF participants included in the genome-wide study of meconium ileus from the International CF Gene Modifier Consortium (GMC).

The four consortium sites are Canadian CF Gene Modifier Study (CGMS), UNC/Case Western Reserve Modifier Study (UNC/Case), Johns Hopkins University CF Twin and Sibling Study (JHU), and French Gene Modifier Study (FGMS). Additional sample details stratified by genotyping platform are provided in S1 Table.