Townsend et al. have proposed that a future robust risk prediction tool for stillbirth should incorporate the following candidate variables: maternal age, BMI, parity, pre-existing hypertension, diabetes, previous stillbirth, nicotine consumption, uterine artery Doppler, pregnancy-associated plasma protein PAPP-A, and placental growth factor PlGF [16]. This evidence concerns the gene PAPPA and diabetes mellitus.