[Retracted] The Application Value of Three-Dimensional Power Doppler Ultrasound in Fetal Growth Restriction

Table 6

Correlation analysis of birth weight and 3D-PDU index.

	Birth weight
	r (95% CI)
VI	0.692 (0.512, 0.732)	0.006
FI	0.526 (0.471, 0.673)	0.024
VFI	0.321 (0.274, 0.432)	0.079