Plasma concentrations of total, free, and bound leptin, and percentage of free leptin at birth and at 3 days of age, in infants born to either mothers with gestational diabetes mellitus (GDM) or healthy mothers
| Infants of GDM mothers | Infants of healthy mothers | |
| Leptin concentration in cord plasma (μg/l) | ||
| Total | 15.0 (3.2–43.8)2-150 | 7.2 (2.4–26.8) |
| Free | 8.5 (1.8–27.2)2-150 | 3.4 (1.1–13.9) |
| Bound | 5.5 (1.4–16.6)2-150 | 3.5 (1.4–12.9) |
| Percentage of free leptin | 58.7 (49.1–70.0)2-150 | 52.6 (40.6–57.5) |
| Leptin concentration at 3 days of age (μg/l) | ||
| Total | 1.8 (1.0–3.7)2-151 | 1.7 (0.6–2.6)2-151 |
| Free | 1.0 (0.5–1.9)2-151 | 0.9 (0.5–1.2)2-151 |
| Bound | 0.8 (0.5–1.8)2-151 | 0.8 (0.6–1.4)2-151 |
| Percentage of free leptin | 55.3 (49.6–67.7)2-150 | 50.4 (44.5–56.2)2-164 |