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A Procedure for Studying the Footshock-Induced Reinstatement of Cocaine Seeking in Laboratory Rats

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Traumatic event re-exposure in injecting drug users.

Jessica M Peirce¹, Ken Kolodner, Robert K Brooner

¹Department of Psychiatry, Johns Hopkins University School of Medicine, Mason F. Lord, 6th Floor, East 5200 Eastern Avenue, Baltimore, MD 21224, USA. jmpeirce@jhmi.edu

Journal of Urban Health : Bulletin of the New York Academy of Medicine

|October 13, 2011

Summary

Drug users frequently experience traumatic events. This study found that 72% of injecting drug users were re-exposed to trauma over 16 months, with women at higher risk.

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Area of Science:

Addiction Medicine
Trauma Studies
Public Health

Background:

Individuals with substance use disorders have high rates of lifetime trauma exposure.
Limited data exists on the incidence of new traumatic event re-exposure in this population.
Understanding re-exposure rates is crucial for effective intervention and treatment.

Purpose of the Study:

To determine the rate of ongoing traumatic event re-exposure in male and female injecting drug users.
To identify risk factors and specific types of traumatic events experienced by this cohort.
To inform clinical practice and public health strategies for drug users.

Main Methods:

Prospective cohort study involving 197 injecting drug users recruited from syringe exchange services in Baltimore.
Monthly assessments of traumatic event re-exposure over a 16-month follow-up period.
Statistical analysis including adjusted odds ratios to compare re-exposure rates between genders.

Main Results:

A significant rate of traumatic event re-exposure was observed, with 27% experiencing re-exposure monthly and 72% over 16 months.
Women injecting drug users were more than twice as likely to report any traumatic event re-exposure compared to men (AOR=2.48).
Specific traumatic events like life-threatening illness, death of a loved one, and injury/illness of a loved one were more prevalent in women.

Conclusions:

Traumatic event re-exposure is highly prevalent among injecting drug users, occurring more frequently than previously understood.
Female injecting drug users represent a particularly vulnerable group with elevated risk for traumatic event re-exposure.
Systematic reassessment of trauma exposure in this population can aid in identifying individuals requiring urgent support and facilitate treatment engagement.