Table 3.
Linear mixed regression models examining insomnia symptoms as a predictor of change in treatment outcomes over time.
| Predictors | ||||||
|---|---|---|---|---|---|---|
| Time-by-Insomnia: Post-Tx | Time-by-Insomnia: Follow-up | |||||
|
|
||||||
| Outcomes | β | 95% CI | p | β | 95% CI | p |
|
| ||||||
| Pain-related disability | −.46 | −.93, .02 | .059 | −.76 | −1.27, −.25 | .004* |
| Pain intensity | −.05 | −.09, −.01 | .012* | −.04 | −.08, .01 | .074 |
| Global health | .27 | .11, .42 | .002* | .11 | −.05, .27 | .182 |
| Depression | −.16 | −.39, .06 | .156 | −.22 | −.45, .01 | .056 |
| Anxiety | −.16 | −.40, .08 | .196 | −.20 | −.45, .05 | .116 |
| Fatigue | .64 | .28, 1.00 | .001* | .69 | .32, 1.06 | <.001* |
| Positive affect | .09 | −.05, .23 | .207 | −.01 | −.15, .14 | .925 |
| Negative affect | −.17 | −.29, −.05 | .006* | −.19 | −.32, −.07 | .003* |
| Executive functioning | .14 | −.30, .03 | .098 | −.12 | −.28, .05 | .161 |
Notes. All models controlled for age, sex, race and ethnicity.
*
p < .05.