The factors related to gestational diabetes were: history of giving birth ≥ 4000g (OR = 3.37 with p = 0.009, KTC: 1.34 - 7.43), positive urinary glucose (OR = 3.06 with p = 0.001, KTC = 1.75 - 5.94), dietary excess of glucid (OR = 5.72 with p = 0.004, KTC = 1.76 - 16.78).