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Predictors of transitions in firearm assault behavior among drug-using youth presenting to an urban emergency department

Authors
  • Goldstick, Jason E.1, 2
  • Carter, Patrick M.1, 2, 3
  • Heinze, Justin E.2, 3, 4
  • Walton, Maureen A.2, 5, 6
  • Zimmerman, Marc2, 3, 4
  • Cunningham, Rebecca M.1, 2, 3, 4, 7
  • 1 University of Michigan, Department of Emergency Medicine, E Medical Center Drive, Ann Arbor, MI, 48109, USA , Ann Arbor (United States)
  • 2 University of Michigan, Injury Prevention Center, 2800 Plymouth Road, Suite B10-G080, Ann Arbor, MI, 48109-2800, USA , Ann Arbor (United States)
  • 3 University of Michigan School of Public Health, Youth Violence Prevention Center, 1415 Washington Heights, Ann Arbor, MI, 48109, USA , Ann Arbor (United States)
  • 4 University of Michigan School of Public Health, Department of Health Behavior and Health Education, 109 South Observatory Street, Ann Arbor, MI, 48109-2019, USA , Ann Arbor (United States)
  • 5 University of Michigan School of Medicine, Department of Psychiatry, 4250 Plymouth Road, Ann Arbor, MI, 48109, USA , Ann Arbor (United States)
  • 6 University of Michigan Addiction Center, 4250 Plymouth Road, Ann Arbor, MI, 48109, USA , Ann Arbor (United States)
  • 7 Hurley Medical Center, Department of Emergency Medicine, 1 Hurley Plaza, Flint, MI, 48503, USA , Flint (United States)
Type
Published Article
Journal
Journal of Behavioral Medicine
Publisher
Springer US
Publication Date
Aug 01, 2019
Volume
42
Issue
4
Pages
635–645
Identifiers
DOI: 10.1007/s10865-019-00021-8
Source
Springer Nature
Keywords
License
Yellow

Abstract

Risk and protective factors for firearm assault (FA) have been established, but little is known about factor preceding transitions in FA behavior. We modeled covariate effects on individuals’ transitions in FA behavior (Yes/No) using inhomogeneous, continuous-time, Markov Chains. 3287 assessments were made across five initial biannual follow-ups, and two additional biannual follow-ups (an average of 2.2 years later) from a follow-on study; 2687 pairs of transitions were observed (2414 No-FA → No-FA; 89 No-FA → FA; 121 FA → No-FA; 63 FA → FA). Non-firearm peer violence (HR = 2.31, 95% CI [1.28,4.21]), firearm victimization (HR = 2.57, 95% CI [1.31,5.04]), and marijuana ASSIST sum (HR = 1.27, 95% CI [1.05,1.54]) all preceded transitions into FA, but not transitions out of FA. Delinquent peer associations both hastened transitions into FA (HR = 1.19, 95% CI [1.00,1.40]) and slowed transitions out of FA (HR = 0.84, 95% CI:[0.72,1.00]), with analogous findings regarding attitudes favoring retaliation. Efforts to prevent FA initiation should focus on those currently reporting firearm violence victimization, and on factors indicating an escalating delinquency trajectory (e.g. non-firearm violence, substance use), while programs focusing on peer influences and social norms may be effective at preventing FA regardless of current FA status.

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