Table 4. Doppler findings and perinatal outcome according to the numbers of fluid collection sites.

Data are expressed by no. (%) and denominators are numbers of patients who were tested for each test.

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)Statistically significant trend by linear-by-linear association.