Bivariate Correlations of Study Variables with Insomnia Severity
| Variable | Correlation (r) |
|---|---|
| Relationship status | −0.03 |
| Race | −0.023 |
| Education | 0.017 |
| Gender | −0.065 |
| Age | −0.034 |
| SF-8* | 0.36 |
| CES-D* | 0.39 |
| SE-S* | −0.52 |
| DBAS* | 0.31 |
* P < .01.
CES-D, Center for Epidemiologic Studies Depression Scale; SE-S, Self-Efficacy for Sleep Scale; DBAS, Dysfunctional Beliefs about Sleep scale; SF-8, Medical Outcomes Study SF-8 global health status measure.