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. Author manuscript; available in PMC: 2017 Aug 1.
Published in final edited form as: J Am Acad Child Adolesc Psychiatry. 2016 May 27;55(8):701–708. doi: 10.1016/j.jaac.2016.05.010

Figure 1.

Figure 1

Adjusted risk ratios and 95% CIs for lifetime illicit drug use associated with number of potentially traumatic experiences before age 11 among adolescents in the National Comorbidity Survey–Adolescent Supplement (N=9,956). Note: For each model, the reference group is adolescents exposed to no potentially traumatic events (PTEs) prior to age 11. All models adjusted for age, sex, race/ethnicity, parent income, and parent substance use problems.