Prevalence of sleep disturbance among adolescents with substance use: a systematic review and meta-analysis

Table 4 Prevalence of hypersomnolence grouped by substance use

	N Study	Prev. (%)	95% CI Lower limit	Upper limit	Heterogeneity Q value	p Value	I²
Overall	7	41	0.230	0.610	847.825	<0.001	99.292
Alcohol	4	31	0.100	0.654	704.538	< 0.001	99.574
Smoking	3	46	0.232	0.700	142.257	< 0.001	98.494

ISSN: 1753-2000