highly significantP = 4.1 × 10 -5
There was a total of 16 variants of the GTF2F2 region that produced a highly significant signal ( P = 4.1 × 10 -5 - 5.28 × 10 -6 ), whereas the two variants of KCTD4 were not associated with NCP 4 ( P = 0.02 - 0.03).