Table 2 Distribution of plasma leptin concentrations according to maternal self-reported nightly sleep duration during early pregnancy
Early pregnancy | Hours of sleep during pregnancy | |||
|---|---|---|---|---|
Plasma leptin (ng/ml) | ≤5 | 6 | 7-8 | ≥9 |
All women (N) | 28 | 44 | 485 | 273 |
Mean ± SD | 27.3 ±19.7 | 24.3 ± 16.8 | 24.3 ± 17.1 | 27.0 ± 17.3 |
(p* = 0.43) | (p* = 0.98) | (Reference) | (p* = 0.04) | |
** Lean women (N) | 23 | 34 | 379 | 205 |
Mean ± SD | 20.6 ± 14.1 | 19.9 ± 13.6 | 20.5 ± 14.7 | 21.7 ± 13.4 |
(p* = 0.98) | (p* = 0.82) | (Reference) | (p* = 0.31) | |
** Overweight/obese women (N) | 5 | 10 | 106 | 68 |
Mean ± SD | 58.3 ± 8.0 | 39.1 ± 18.8 | 38.2 ± 18.6 | 43.0 ± 18.2 |
(p* < 0.001) | (p* = 0.98) | (Reference) | (p* = 0.09) | |