Table 4.
Linear mixed-effects model for sleep and mental health outcomes
| Insomnia Disorder versus Low Complaints | Perinatal Sleep Disruption versus Low Complaints | Insomnia Disorder versus Perinatal Sleep Disruption | |
|---|---|---|---|
| Insomnia Severity Index | 5.30 [4.59 to 6.02], <.001*** | 2.63 [2.05 to 3.21], <.001*** | 2.68 [1.86 to 3.50], <.001*** |
| PROMIS Sleep Disturbance | 8.19 [6.97 to 9.42], <.001*** | 5.31 [4.32 to 6.31], <.001*** | 2.88 [1.47 to 4.29], <.001*** |
| PROMIS Sleep-Related Impairment | 5.31 [4.00 to 6.62], <.001*** | 3.77 [2.70 to 4.83], <.001*** | 1.55 [0.05 to 3.05], .044* |
| Glasgow Sleep Effort Scale | 1.67 [1.32 to 2.03], <.001*** | 0.41 [0.12 to 0.70], .005** | 1.26 [0.86 to 1.67], <.001*** |
| Dysfunctional Beliefs and Attitudes about Sleep | 0.55 [0.35 to 0.76], <.001*** | 0.14 [−0.03 to 0.30], .108 | 0.42[0.19 to 0.65], <.001*** |
| PROMIS Depression | 1.53 [0.33 to 2.73], .013* | 1.43 [0.46 to 2.41], .004** | 0.09 [−1.28 to 1.47], .895 |
| PROMIS Anxiety | 1.82 [0.57 to 3.08], .004** | 0.72 [−0.30 to 1.73], .166 | 1.11 [−0.32 to 2.53], .128 |
Unstandardized coefficients [95% Confidence Intervals], p values are presented; Intervention group allocation, age, instrumental and emotional support, and mental health history were controlled for.
*p < .05 **p < .01 ***p < .001.