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. Author manuscript; available in PMC: 2017 Dec 15.
Published in final edited form as: Biol Psychiatry. 2016 Feb 23;80(12):916–922. doi: 10.1016/j.biopsych.2016.02.018

Table 3.

Hazard ratios (95% CI) for associations between duration of ADHD medication 2006–2008 and depression in 2009.

Number of
patients		 Number of
outcomes		 Model 1: adjusted for
sex, age, and ADHD
medication in 2009		 Model 2: as in model 1
+ other potential
confounders 2006*
Full sample 38,752 2987 0.77 (0.73–0.81) 0.79 (0.75–0.83)
Individuals without previous depression 36,964 1200 0.72 (0.67–0.78) 0.75 (0.69–0.81)
Youth without previous depression 16,966 331 0.72 (0.63–0.82) 0.73 (0.63–0.83)

Note: the hazard ratio is the ratio of the hazard rates associated with one year increase in the duration of ADHD medication.

*

In addition to model 1, adjusted for adjusted for socio-demographic measures (civil status, employment, study, living in metropolitan area, family income) and history of other psychiatric disorders (except for ADHD and depression).