Table 3 Logistic regression analysis of association between attention-deficit hyperactivity disorder (ADHD) and risky behaviour variables (adjusted for age, gender and income)
Odds ratio (95% CI)
Had five or more drinks at one time, more than once in a month (past 12 months), %
 Women over 254.36 (1.87–10.18)
 Women 25 and under2.41 (1.18–4.92)
 Men over 251.08 (0.64–1.82)
 Men 25 and under0.95 (0.59–1.52)
Met the alcohol dependence lifetime criteria, %
 Women over 255.30 (2.83–9.90)
 Women 25 and under1.13 (0.08–16.19)
 Men over 253.60 (1.93–6.71)
 Men 25 and under2.44 (1.05–5.69)
Current smoker (daily or occasional), %1.13 (0.50–2.56)
Have ever smoked, %0.63 (0.22–1.77)
Met marijuana misuse lifetime criteria, %1.17 (0.36–3.85)
Met marijuana-dependence lifetime criteria, %3.07 (0.18–50.86)
Met drug misuse (excluding cannabis) lifetime criteria, %1.26 (0.43–3.65)
Met drug-dependence (excluding cannabis) lifetime criteria, %6.47 (1.05–39.93)