MTNR1B and gestational diabetes: Overall, after adjusting for age, BMI, parity and gravidity, SNPs rs1113132 (EXT2), rs1111875 (HHEX), rs2237892 (KCNQ1), rs10830963 (MTNR1B) and rs13266634 (SLC30A8) showed significant associations with GDM in the dominant model for Filipinos, while rs2237892 (KCNQ1), rs2237895 (KCNQ1) and rs10830963 (MTNR1B) were significantly associated with GDM in the recessive model (Table 8).