Table 2 Ultrasound growth velocities (20–32 weeks, in mm/week) in the optimal appropriate-for-gestational- age (oAGA) and suboptimal appropriate-for-gestational-age group (sAGA)
|  | Optimal AGA (oAGA) group (n = 365) Bwp50–80 | Suboptimal AGA (sAGA) group (n = 569) Bwp10–50 | P |
|---|---|---|---|
Abdominal circumference velocity | 11.23 ± 1.00(8.19–14.28) | 10.72 ± 1.00(7.70–14.00) | <.0001 |
Head circumference velocity | 10.68 ± 0.77 (8.54–13.51) | 10.50 ± 0.80 (6.79–12.67) | 0.001 |
Biparietal diameter velocity | 3.08 ± 0.27(2.31–3.99) | 3.01 ± 0.28(1.96–3.85) | <.0001 |
Femur length velocity | 2.50 ± 0.22(1.89–3.01) | 2.47 ± 0.21(1.54–3.08) | 0.014 |