highly significantp = 0.0001
Highly significant differences have been found between ethnic groups in the total carrier frequency of pathogenic CFTR variants (χ 2 = 23.86; p = 0.0001) as well as in the total carrier frequency of heterozygotes (ꭓ 2 = 11.82; p = 0.003) and polymorphisms (χ 2 = 10.43; p = 0.005).