Table 5.
Changes in depression and anxiety associated with baseline sleep reactivity and sleep system sensitization.
| Outcome | Model significance, effect size | Predictors | b | pr | t | p |
|---|---|---|---|---|---|---|
| Depression at Year 1 | F=23.23, p<.001, adj R2=.30 | |||||
| Age | .00 | −.01 | −.01 | .92 | ||
| Gender | .10 | -- | .22 | .82 | ||
| Depression at Y0 | .53 | .50 | 9.24 | <.001 | ||
| FIRST at Y0 | .08 | .09 | 1.46 | .15 | ||
| FIRSTY1-Y0 | .20 | .24 | 3.88 | <.001 | ||
| Depression at Year 2 | F=18.64, p<.001, adj R2=.34 | |||||
| Age | −.04 | −.15 | −1.91 | .06 | ||
| Gender | −.45 | -- | −.83 | .41 | ||
| Depression at Y0 | .49 | .48 | 7.09 | <.001 | ||
| FIRST at Y0 | .23 | .25 | 3.36 | <.01 | ||
| FIRSTY1-Y0 | .15 | .19 | 2.51 | .01 | ||
| Anxiety at Year 1 | F=26.80, p<.001, adj R2=.33 | |||||
| Age | −.04 | −.08 | −1.29 | .20 | ||
| Gender | 1.25 | -- | 1.39 | .17 | ||
| Anxiety at Y0 | .56 | .52 | 9.67 | <.001 | ||
| FIRST at Y0 | .18 | .10 | 1.58 | .12 | ||
| FIRSTY1-Y0 | .45 | .26 | 4.31 | <.001 | ||
| Anxiety at Year 2 | F=15.91, p<.001, adj R2=.30 | |||||
| Age | −.05 | −.09 | −1.22 | .22 | ||
| Gender | .82 | -- | .76 | .45 | ||
| Anxiety at Y0 | .52 | .49 | 7.24 | <.001 | ||
| FIRST at Y0 | .29 | .17 | 2.19 | .03 | ||
| FIRSTY1-Y0 | .13 | .08 | 1.07 | .29 |
Note: F = F-ratio for overall regression model. p = significance value. adj R2 = adjusted R2. b = unstandardized beta coefficient. pr = partial correlation. t = t-value for the corresponding predictor. Depression measured using the Quick Inventory of Depressive Symptomatology. Anxiety measured using the Beck Anxiety Inventory. FIRST = Ford Insomnia Response to Stress Test. FIRSTY1-Y0 = Changes in FIRST scores from Year 0 to Year 1.