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

Table 3 Prevalence of insomnia grouped by substance use

	N Study	Prev. (%)	95% CI Lower limit	Upper limit	Heterogeneity Q value	p Value	I²
Overall	25	28	0.182	0.396	7438.530	<0.001	99.677
Alcohol	10	31	0.156	0.509	3340.713	< 0.001	99.731
Coffee	3	23	0.082	0.490	252.011	< 0.001	99.206
Marijuana	2	26	0.024	0.834	741.531	< 0.001	99.865
Smoking	10	28	0.135	0.487	2800.536	< 0.001	99.679

ISSN: 1753-2000