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Item new Preprint · not peer-reviewed Added

Same naloxone increase is projected to cut overdose deaths unevenly across six counties

A simulation calibrated to six Pennsylvania counties projected that the same 30% rise in naloxone distribution would cut 2029 overdose deaths by 70% in Allegheny but 11% in Erie.

A simulation model of opioid use disorder was calibrated to six Pennsylvania counties, two urban, two intermediate and two rural. A 30% increase in naloxone distribution was projected to reduce 2029 overdose deaths by 70% in Allegheny and 11% in Erie. Projected reductions from more buprenorphine were smaller, at 10% to 23%, except in Erie, where buprenorphine gave the larger reduction.

Why it is interesting: Responsiveness was associated with each county's past dispensing variability; these are projections, not observed experience.

Source
medRxiv, 18 September 2026
Paper
County-Level Heterogeneity in Opioid Harm Reduction and Treatment Effects: A Simulation Modeling Analysis
Authors
Ahmed AA, Rahimian MA, Chen Q, Kumar P
DOI
10.64898/2026.05.11.26352900
Type
Preprint
Design
Simulation model of opioid use disorder calibrated separately to six Pennsylvania counties, projecting 2025-2029 overdose mortality under 10-30% increases in naloxone distribution and buprenorphine dispensing
Verdict
New finding
Driver
Alcohol and drug use
Attention
1 citation (Crossref) · as of 2026-10-19

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