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. 2021 Oct 7;14:100387. doi: 10.1016/j.abrep.2021.100387

Table 2.

Overall prevalence across substance use outcomes.

k Prevalence LBCI95 UBCI95 Z
Alcohol
Use 58 0.015 0.010 0.017 13.49
Binge episode 58 0.029 0.021 0.039 12.94
Heavy drinking 58 0.010 0.007 0.014 13.03
Tobacco smoking 65 0.012 0.009 0.015 16.35
Marijuana use 44 0.015 0.010 0.020 11.79
Amphetamine use (lifetime) 43 0.009 0.006 0.013 9.69

Note. Overall 30-day prevalence (except for amphetamine use) was estimated under random effects model.

k = Number of countries in analysis. LBCI95 = 95% confidence lower bound. UBCI95 = 95% confidence upper bound. Z = Contrast statistic (all significant with p < .01).