From: Maternal fat free mass during pregnancy is associated with birth weight
N | 1150 |
Maternal age (year) | 28.0 (20.0–44.0) |
Primiparous (%) | 74.2 |
urban residents (%) | 92.1 |
Pre-pregnancy weight (kg) | 53.8 (37.1.–91.0) |
Height (cm) | 160.3 (143.0–178.9) |
Pre-pregnancy BMI (kg m-2) | 21.0 (15.4–32.8) |
Underweight (less than 18.5, %) | 13.5 |
Normal (18.5–22.9, %) | 64.6 |
Overweight (23.0–24.9, %) | 12.3 |
Obese (25.0 or higher, %) | 9.6 |
During pregnancy | |
Maternal weight gain (kg) | 17.3 (9.1–38.8) |
Placental weight (g) | 625.1 (50.0–1000.0) |
Fat mass (kg) | 18.5 (8.7–54.4) |
Fat-free mass (kg) | 38.6 (28.9–51.2) |
Fat-free mass index | 15.2 (12.1–33.0) |
Gestational age at delivery (weeks) | 39.1 (36.5–42.0) |
Mode of delivery | |
Spontaneous vaginal delivery (%) | 53.4 |
Instrumental (%) | 9.2 |
Cesarean delivery (%) | 37.4 |
Birth weight (g) | 3370.0 (2500.0–4600.0) |
Birth length (cm) | 51.2 (47.0–53.9) |
Neonatal male sex (%) | 49.8 |