nominally significantP = 0.01
RESULTS Our data show that the minor allele of rs7756992 ( P = 8 × 10 −5 ) at the CDKAL1 locus is strongly associated with lower birth weight, whereas a perfect surrogate for variation previously implicated for the trait at the same locus only yielded nominally significant association ( P = 0.01; r 2 rs7756992 = 0.677).