Table 1.
Maternal and perinatal characteristics of the study population.
| Controls | FGR | p-value | |
|---|---|---|---|
| N | 111 | 97 | |
| Maternal characteristics | |||
| Age (years) | 33.8 ± 4.5 | 34.1 ± 5.7 | 0.668 |
| Nulliparous (%) | 40 (36.0) | 34 (35.0) | 0.944 |
| Body mass index (kg/m2) | 23.0 ± 4.8 | 23.2 ± 4.6 | 0.736 |
| Use of assisted reproductive technologies (%) | 14 (12.6) | 14 (14.4) | 0.747 |
| Smokers (%) | 15 (13.5) | 9 (9.3) | 0.404 |
| Feto-placental ultrasound | |||
| Gestational age at ultrasound (weeks) | 33.1 ± 3.5 | 33.2 ± 3.5 | 0.886 |
| Estimated fetal weight (g) | 2173 ± 734 | 1640 ± 667 | <0.001 |
| Umbilical artery PI | 0.95 ± 0.19 | 1.18 ± 0.47 | <0.001 |
| Middle cerebral artery PI | 1.95 ± 0.39 | 1.79 ± 0.40 | 0.013 |
| Cerebroplacental ratio | 2.07 ± 0.52 | 1.67 ± 0.54 | <0.001 |
| Uterine arteries mean PI | 0.72 ± 0.19 | 1.07 ± 0.54 | <0.001 |
| Ductus venosus PI | 0.45 ± 0.17 | 0.52 ± 0.27 | 0.168 |
| Perinatal data | |||
| Gestational age at delivery (weeks) | 39.9 ± 1.1 | 37.3 ± 3.4 | <0.001 |
| Prematurity (%) | 3 (2.7) | 22 (22.7) | <0.001 |
| Birthweight (g) | 3338 ± 383 | 2191 ± 627 | <0.001 |
| Birthweight percentile | 49 ± 29 | 4 ± 4 | <0.001 |
| Female sex (%) | 48 (43.2) | 46 (47.4) | 0.546 |
| Preeclampsia (%) | 2 (1.8) | 18 (18.6) | <0.001 |
| Need for neonatal reanimation (%) | 4 (3.6) | 19 (19.6) | <0.001 |
| Admission to Neonatal Intensive Care Unit (%) | 2 (1.8) | 7 (7.2) | 0.035 |
| Neonatal morbidity (%) | 11 (9.9) | 39 (40.2) | <0.001 |
Data shown as mean ± SD or n (percentage).
Statistically significant different variables (< 0.05) variables are highlighted using bold text.