Table 3.
Relationship between percentage of supine sleep and birth outcomes, with and without adjustment for fetal growth restriction and inpatient status
| Delivery gestation | Birthweight | Birthweight centile | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model 1 | Model 2 | Model 1 | Model 2 | Model 1 | Model 2 | |||||||
| B (SE) | β | B (SE) | β | B (SE) | β | B (SE) | Β | B (SE) | β | B (SE) | β | |
| %TST supine | .05 (.02) | .20** | .02 (.01) | .07 | 1.30 (.34) | .27*** | .60 (.25) | .13* | −.26 (.09) | −.22** | −.10 (.07) | −.08 |
| FGR | .52 (.09) | .40*** | 14.73 (1.8) | .52*** | −3.82 (.51) | −.53*** | ||||||
| Inpatient | .48 (.10) | .34*** | 7.09 (1.97) | .23*** | −1.20 (.56) | −.15* | ||||||
| F | 7.83** | 48.76*** | 14.50*** | 63.37*** | 8.91** | 42.66*** | ||||||
| R2 (%) | 4.13 | 44.83 | 7.53 | 51.93 | 4.79 | 42.24 |
*p < .05, **p < .01, ***p < .001. Model 1 = predictor of %TST supine only; Model 2 = Model 1 with adjustment for FGR and hospital inpatient at time of sleep study.
Note. Delivery gestation reflected and log transformed, birthweight reflected and square root transformed, birthweight centile square root transformed, %TST supine square root transformed. %TST = percentage of total sleep time, FGR = fetal growth restriction.