HbA1c during pregnancy was within recommended limits in both groups but significantly lower in HNF1A-MD patients during the second trimester (32.7 ± 5.9 mmol/mol [5.13 ± 0.54%] vs. 38.5 ± 5.2 mmol/mol [5.65 ± 0.48%], p=0.03, Table 3). The gene discussed is HNF1A; the disease is Menkes disease.