[Retracted] Ultrasound Multiparametric Assessment of the Impact of Hypertensive Disorders of Pregnancy on Fetal Cardiac Function and Growth and Development

Table 7

Comparison of umbilical artery blood flow parameters for different fetal growth and development ( ± s).

Groups	n	S/D	PI	RI
Study group A	39	3.89 ± 0.98	1.29 ± 0.33	0.79 ± 0.16
Study group B	59	2.50 ± 0.66	0.91 ± 0.31	0.63 ± 0.08
t	—	8.397	5.789	6.552
value	—	＜0.001	＜0.001	＜0.001

Note. Study group A, fetal growth restriction; study group B, normal fetal growth.