Table 1.
Characteristics of pregnancies (n = 665).
| Maternal characteristics | |
|---|---|
| Maternal age (years) | 30.2 (4.7) |
| Maternal pre-pregnancy BMI (kg/m2) | 24.8 (4.9) |
| Normal weight (BMI ≤ 25) n (%) | 406 (61%) |
| Overweight (25 > BMI ≤ 30) n (%) | 159 (24%) |
| Obese (BMI > 30) n (%) | 85 (13%) |
| Mother smoking (yes/no) | 62 (10%) |
| Parity: | |
| 0 | 254 (38%) |
| 1 | 282 (42%) |
| 2 | 96 (14%) |
| 3 | 17 (3%) |
| 4 | 4 (0.6%) |
| Ultrasound scans: | |
| Fetal weight in grams at 20 weeks (mean ± SD) | 328 ± 42.6 |
| Fetal weight in grams at 25 weeks | 893 ± 125 |
| Fetal weight in grams at 32 weeks | 2089 ± 250 |
| Delivery: | |
| Gestational age in days | 279 ± 10 |
| Vaginal delivery | 577 (87%) |
| Cesarean section | 85 (13%) |
| Emergency | 51 |
| Elective | 34 |
| Offspring characteristics | |
| Gender (Male/Female)* | 338/317 |
| Birth weight (g) | 3580 (474) |
| Offspring with a low GRS (2.5th percentile) (n = 17) | |
| Birth weight (g) | 3310 (420) |
| Length (cm) | 51.5 (1.6) |
| Maternal age | 28.8 (4.1) |
| Maternal BMI (kg/m2) | 25.5 (4.2) |
| Offspring with a high GRS (97.5th percentile) (n = 17) | |
| Birth weight (g) | 3785 (356) |
| Length (cm) | 52.5 (1.5) |
| Maternal age | 31.4 (4.9) |
| Maternal BMI (kg/m2) | 25.3 (4.8) |
Data is expressed as mean (SD)/median (SD) or number of individuals in a group (%). Parity indicates the number of previous pregnancies carried to term. *Missing gender in 10 pregnancies. GRS: Genetic Risk Score.