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Journal Article

Citation

Kennedy TM, Howard AL, Mitchell JT, Hoza B, Arnold LE, Hechtman LT, Swanson JM, Stehli A, Molina BSG. Addict. Behav. 2019; 99: e106106.

Affiliation

Departments of Psychiatry, Psychology, and Pediatrics, University of Pittsburgh, School of Medicine, 3811 O'Hara St., Pittsburgh, PA 15213, USA. Electronic address: molinab@upmc.edu.

Copyright

(Copyright © 2019, Elsevier Publishing)

DOI

10.1016/j.addbeh.2019.106106

PMID

31473568

Abstract

Peer substance use strongly predicts adolescent and young adult substance use, but its role in ADHD-related risk for substance use, especially in adulthood, is unclear. In a sample with (n = 516) and without (n = 249) childhood ADHD from the Multimodal Treatment Study of ADHD, we compared associations between change over time in peer substance use and personal substance use (alcohol, cigarettes, marijuana, illicit drugs) from age 14-26 by ADHD status. Developmentally typical peer substance use trajectories across adolescence and young adulthood coincided with similar changes in personal use - but less so for those with ADHD histories. Concurrent associations between peer and personal use in adolescence and young adulthood were weaker for those with ADHD histories than without for commonly used substances (alcohol, marijuana). Prospectively, escalating peer use during adolescence forecasted adulthood declines for commonly used substances, yet persistently high substance use at age 25, regardless of ADHD history. In the reverse direction, growth in adolescent substance use predicted developmentally normative young adult declines in peer use - but for the ADHD group, adolescent heavy drinking predicted increases in young adult peer use.

FINDINGS suggest that individuals with ADHD may have difficulty emulating their peers' developmentally normative declines in substance use, highlighting the importance of social factors when treating young adults affected by ADHD and substance abuse.

Copyright © 2019 Elsevier Ltd. All rights reserved.


Language: en

Keywords

ADHD; Adolescence; Longitudinal; Peers; Substance use; Young adulthood

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