highly significantp < 5.5 × 10 −8
There was a highly significant difference in GJA9 allele frequencies between PN cases and controls from the original GWAS cohort ( p < 5.5 × 10 −8 ), reflected in a difference in genotype frequencies under a dominant model ( p < 1.2 × 10 −7 ), but not a recessive model ( p < 0.05) (Table 1 ).