• J Pain · Dec 2016

    Codeine shopping behavior in a retrospective cohort of chronic non-cancer pain patients: incidence and risk factors.

    • Chouki Chenaf, Jean-Luc Kabore, Jessica Delorme, Bruno Pereira, Aurélien Mulliez, Lucie Roche, Alain Eschalier, Noémie Delage, and Nicolas Authier.
    • INSERM, UMR 1107 NEURO-DOL, Faculté de Médecine, Université d'Auvergne, Clermont-Ferrand, France; CHU Clermont-Ferrand, Centres Addictovigilance et Pharmacovigilance Auvergne (CEIP-CRPV), Service de Pharmacologie Médicale, Clermont-Ferrand, France. Electronic address: chouki.chenaf@udamail.fr.
    • J Pain. 2016 Dec 1; 17 (12): 1291-1301.

    AbstractCodeine is a widely used opioid analgesic but studies on its misuse in chronic noncancer pain (CNCP) are still lacking. The aim of this study was to assess the incidence of codeine shopping behavior in CNCP patients and to identify the associated risk factors. This was a population-based retrospective cohort study from the French health insurance claims database from 2004 to 2014. The main outcome was the one-year incidence of codeine shopping behavior defined as ≥1 day of overlapping prescriptions written by ≥2 different prescribers and filled in ≥3 different pharmacies. A total of 1,958 CNCP patients treated with codeine were included, with a mean age of 62.7 ± 16.1 years, 36.8% men. The 1-year incidence rate of codeine shopping behavior was 4.03% (95% confidence interval [CI], 3.07-5.28). In multivariate analysis, risk factors associated with shopping behavior were younger age (≤40 years) (hazard ratio [HR] = 7.29; 95% CI, 4.28-12.42), mental health disorders (HR = 2.25; 95% CI, 1.08-4.67), concurrent use of anxiolytic benzodiazepines (HR = 3.12; 95% CI, 1.55-6.26), and previous use of strong opioids (HR = 2.94; 95% CI, 1.24-6.98). The incidence of codeine shopping behavior in CNCP patients was 4% and risk factors identified were shared with those of opioid abuse.Copyright © 2016 American Pain Society. Published by Elsevier Inc. All rights reserved.

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