Utility of a hemoglobin A1C obtained at the first prenatal visit

Table 2 Diagnosis of gestational diabetes and medication use by group

	GDM diagnosisn %	Required medsn%1 %2	Mean gestation at initiation of medication
Group 13 (n = 16)	16 (100)	15 (95) (95)	14 ± 6 wk
Group 24 (n = 82)	66 (80)	52 (64) (80)	20 ± 7.8 wk
Group 35 (n = 205)	18 (8.7)	13 (6) (72)	31 ± 4.3 wk

³HbA1C ≥ 6.5%;

⁴HbA1C: 5.7%-6.4%;

⁵HbA1C < 5.7%;

¹Percentage of the group that required medication;

²Percentage of patients in the group with a diagnosis of gestational diabetes (GDM) that required medication. HbA1C: Hemoglobin A1C.