Table 3. Risk of fetal abdominal overgrowth according to maternal age, pre-pregnancy BMI, and HbA1c.
| Variables | Risk of Fetal Abdominal Overgrowth Ratio# ≥ 90th Percentile Odds ratio (95% CI) |
|||
|---|---|---|---|---|
| Maternal age (years) | <30 (ref.) | 30–35 | 35–40 | >40 |
| 1.00 |
1.25 (0.94, 1.67) |
1.76* (1.30, 2.37) |
1.94* (1.30, 2.90) |
|
| Pre-pregnancy BMI (kg/m2) | <20 (ref.) | 20–25 | 25–30 | >30 |
| 1.00 |
1.55* (1.29, 1.87) |
1.49* (1.03, 2.18) |
2.90* (1.47, 5.70) |
|
| HbA1c (%) | <5.0 (ref.) | 5.0–5.3 | 5.3–5.6 | >5.6 |
| 1.00 |
1.05 (0.62, 1.80) |
1.58 (0.89, 2.81) |
2.62* (1.31, 5.25) |
|
BMI, body mass index; HbA1c, glycated hemoglobin
*p<0.05
#GA-AC/GA-GCT > 1.08 (GA-AC, estimated gestational age by abdominal circumference; GA-GCT, actual gestational age by last menstruation period [LMP] at 50-g GCT and fetal biometry)