Table 2.
UA blood flow parameters at the second and third trimesters
| Variables | PI | RI | S/D | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 2nd T | 3rd T | P values | 2nd T | 3rd T | P values | 2nd T | 3rd T | P values | |
| Control (n = 20) | 1.06 ± 0.17 | 0.83 ± 0.13 | < 0.001*** | 0.66 ± 0.06 | 0.57 ± 0.06 | < 0.001*** | 3.02 ± 0.48 | 2.40 ± 0.32 | < 0.001*** |
| FGR (n = 20) | 1.23 ± 0.11 | 0.96 ± 0.13 | < 0.001*** | 0.72 ± 0.03 | 0.62 ± 0.06 | < 0.001*** | 3.61 ± 0.41 | 2.68 ± 0.38 | < 0.001*** |
| P values | < 0.001*** | 0.005** | < 0.001*** | 0.026** | < 0.001*** | 0.015** | |||
Values are expressed as mean ± SD
UA umbilical artery, FGR fetal growth restriction, PI pulsatility index, RI resistance index, S/D peak systolic velocity/end diastolic velocity, T trimester
**P < 0.01, ***P < 0.001