Table 5 Proportions and logistic regression analysis of association between attention-deficit hyperactivity disorder (ADHD) and substance use variables (adjusted for age and gender or stratified when age or gender interaction present)
ControlsADHD populationOdds ratio (95% CI)
Met marijuana misuse lifetime, %4.98 (4.52–5.45)13.67 (10.16–17.19)2.14 (1.55–2.96)
Met marijuana-dependence lifetime criteria, %1.42 (1.17–1.69)7.18 (4.06–10.29)3.41 (2.00–5.80)
Met drug misuse (excluding cannabis) lifetime criteria, %1.96 (1.68–2.23)6.88 (4.39–9.37)3.19 (2.14–4.77)
Met drug-dependence (excluding cannabis) lifetime criteria, %1.65 (1.39–1.91)10.91 (6.78–15.02)5.74 (3.62–9.09)