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Predictors of needle exchange program utilization during its implementation and expansion in Tijuana, Mexico
Danielle M Smith1,2, Dan Werb1, Daniela Abramovitz1
1Division of Global Public Health, Department of Medicine, University of California, San Diego.
The American Journal on Addictions
|January 15, 2016
Summary
Tijuana
Area of Science:
- Public Health
- Epidemiology
- Substance Use Research
Background:
- Mexico had limited needle exchange programs (NEPs) before 2004.
- The second NEP in Tijuana opened in 2004, with utilization unstudied.
- Understanding NEP initiation is crucial for public health interventions.
Purpose of the Study:
- To identify predictors of initiating needle exchange programs (NEPs) in Tijuana, Mexico.
- To analyze factors influencing early NEP uptake among people who inject drugs (PWID).
- To inform the scale-up of NEP services in Mexico.
Main Methods:
- Respondent-driven sampling recruited PWID in Tijuana from April 2006 to April 2007.
- Weighted Poisson regression with generalized estimating equations analyzed NEP initiation predictors.
- Correlations between recruiters and recruits were accounted for.
Main Results:
- NEP uptake rose from 20% to 59% within six months.
- Factors associated with NEP initiation included attending shooting galleries, arrest for track-marks, family drug use, and larger PWID networks.
- Barriers to NEP initiation included obtaining syringes at pharmacies, higher income, and reporting needle sharing.
Conclusions:
- NEP expansion in Tijuana demonstrated vigorous uptake among PWID.
- Police interaction and social network size influenced NEP initiation.
- Findings offer critical insights for expanding NEP services in Mexico.
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