borderline significantP = 0.073
Overall, these two models explained 17.8% and 26.4% of the variability in maternal total testosterone, respectively, Table 3 . Maternal testosterone is influenced by a single nucleotide polymorphism in the aromatase gene Genotyping analysis of the aromatase ( CYP19A1) gene in maternal blood DNA showed that rs700518 had borderline significant effect on maternal total testosterone levels (U = 5.2; P = 0.073).