Table 3.
Clinical data among pregnant women with different HbA1c levels of GDM.
| Variables | HbA1c < 6% (n = 656) | HbA1c ≥ 6% (n = 224) | t/χ2 | P |
|---|---|---|---|---|
| Gestational age (d) | 251.36 ± 22.45 | 253.19 ± 23.87 | 0.518 | .913 |
| Birth weight (kg) | 3.12 ± 0.67 | 3.59 ± 0.71 | 4.464 | .005 |
| OGTT fasting (mmol/L) | 5.76 ± 2.31 | 6.83 ± 1.45 | 3.252 | .012 |
| OGTT 1h (mmol/L) | 10.34 ± 1.81 | 12.57 ± 1.42 | 8.377 | .009 |
| OGTT 2h (mmol/L) | 8.83 ± 1.42 | 11.34 ± 3.35 | 7.785 | .027 |
| Neonatal respiratory distress syndrome | 128 (19.51) | 40 (17.86) | 0.296 | .586 |
| APagr 1 min ≤ 7 | 121 (18.45) | 48 (21.43) | 0.958 | .328 |
| APagr 5 min ≤ 7 | 20 (3.05) | 4 (1.79) | 1.004 | .316 |
| Placental abnormality | 104 (15.85) | 28 (12.50) | 1.473 | .225 |
| Amniotic fluid abnormality | 104 (15.85) | 28 (12.50) | 1.473 | .225 |
| Prenatal corticosteroid use | 108 (16.46) | 44 (19.64) | 1.181 | .277 |
GDM = gestational diabetes mellitus, HbA1c = hemoglobin A1c.