ArticleEuropean addiction research2025
Non-Prescribed Use of Opioid Agonist Medications and Associations with Non-Fatal Overdoses: A Repeated Cross-Sectional Study across a Decade of Reduced Monitoring.
Article in European addiction research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Corrections and comments
- Erratum issuedErratum.2025
Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
<p>Introduction: Non-prescribed use of opioid agonist treatment (OAT) medications is a public health concern. This study analyzes the prevalence of non-prescribed use and non-fatal overdoses in Norway in 2013 and 2023, a period marked by an increasingly flexible OAT regimen, and examines associations between non-prescribed use and non-fatal overdoses.
methodsCross-sectional surveys with two convenience samples (n
resultsNon-prescribed use of OAT medications significantly declined from 39.4% in 2013 to 28.1% in 2023 (p < 0.001), as did frequency of use (p < 0.01). There was no change in non-fatal overdoses in the past month (8.2% in both years), though past-year non-fatal overdoses decreased (23.6% in 2013 vs. 15.9% in 2023, p = 0.001). Multinomial regression analyses showed no significant association between non-prescribed OAT use and increased risk of non-fatal overdoses. Instead, factors such as injecting drug use, frequent heroin use, stimulant use, younger age, and female sex were associated with non-fatal overdose risk.
conclusionEven with an increasingly flexible OAT regimen, non-prescribed use declined among street-recruited participants, and no corresponding increase in non-fatal overdoses was observed. These findings challenge the assumption that reduced monitoring in OAT is linked with higher rates of non-prescribed use and adverse outcomes, such as non-fatal overdoses, among individuals not in OAT. </p>.
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