Table 3. Comparisons of maternal and pregnancy characteristics, antenatal ultrasound findings and perinatal outcome.

Data are expressed by mean±standard deviation or no. (%).

GA, gestational age; UA, umbilical artery; S/D, systolic/diastolic; A/R, absent/reversed; EDF, end-diastolic flow; MCA, middle cerebral artery; PI, pulsatility index; PSV, peak systolic velocity; MoM, multiple of median; DV, ductus venosus.

^a)Fetal death vs. live birth, P<0.05 by Mann-Whitney U-test; ^b)Neonatal death vs. survivor, P<0.05 by Fisher's exact test; ^c)Denominators are numbers of patients who were tested for each test.