Category | Prevalence (%) | 95% CI | Participants | P-value |
---|---|---|---|---|
Sleep disturbances among substance use | 29 | 0.201–0.403 | All substance users |  |
Sleep disturbances grouped by substance use | 37 | 0.096–0.770 | Marijuana users |  |
Insomnia grouped by substance use | 31 | 0.156–0.509 | Alcohol users |  |
Hypersomnolence grouped by substance use | 46 | 0.232-0.700 | Smokers | Â |
Subgroup and meta-regression | Â | Â | All substance users | Â |
Study design | Â | Â | Â | 0.008 |
Method of assessment | Â | Â | Â | 0.048 |