Table 5. Multivariate analysis.

Odds Ratio (95% CI)	Oppositional defiant disorder	Conduct disorder	Anxiety disorders	Mood disorders	Sleep disorders
Sex	1.39 (0.71–2.71)	1.22 (0.57–2.60)	0.52 (0.27–1.01)	0.90 (0.42–1.91)	0.90 (0.45–1.79)
Age of onset	0.92 (0.78–1.09)	0.91 (0.75–1.12)	0.96 (0.84–1.09)	1.04 (0.90–1.19)	1.04 (0.93–1.16)
Age of treatment	1.00 (0.95–1.04)	0.97 (0.92–1.02)	1.00 (0.95–1.04)	1.01 (0.96–1.07)	1.00 (0.95–1.05)
Medication history
Ever use	1.33 (0.47–3.72)	0.73 (0.24–2.19)	0.43 (0.14–1.32)	2.35 (0.64–8.64)	0.73 (0.26–2.08)
Current use	0.64 (0.26–1.56)	0.67 (0.26–1.69)	3.39 (1.22–9.41)*	0.33 (0.09–1.16)	1.07 (0.43–2.66)
Duration of use	1.00 (0.99–1.01)	1.00 (0.99–1.01)	0.99 (0.98–1.01)	0.94 (0.90–0.99)*	0.99 (0.98–1.00)*
Childhood ADHD subtypes
Combined subtype	4.10 (2.14–7.85)*	7.40 (3.21–17.10)*	1.68 (0.88–3.23)	1.53 (0.72–3.24)	4.32 (2.14–8.69)*
Full-scale IQ	0.97 (0.94–1.00)	0.98 (0.95–1.01)	1.00 (0.97–1.03)	0.99 (0.96–1.03)	0.99 (0.96–1.02)

ADHD, attention-deficit/hyperactivity disorder; CI, confidence interval

*p < 0.05