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Use of multiple sources and capture–recapture method to estimate the frequency of hospitalizations related to drug abuse - addictovigilance.fr

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Use of multiple sources and capture–recapture method to estimate the frequency of hospitalizations related to drug abuse

Jouanjus et al., Pharmacoepidemiology and Drug Safety, 2012
  • Titre traduit : Utilisation de la méthode capture-recapture pour estimer la fréquence des hospitalisations associées aux substances à potentiel d’abus
  • Auteurs : Emilie Jouanjus, Laure Pourcel, Sylvie Saivin, Laurent Molinier & Maryse Lapeyre-Mestre
  • Résumé :
    • Purpose  : Addictive behaviours are often associated with hidden characteristics that are difficult to detect by usual approaches. This study aimed to estimate the incidence of serious drug-related complications by using the capture–recapture method in defined geographical area.
    • Methods : Hospitalizations with mention of disorders related to drug of abuse were considered serious drug-related complications. We searched these cases in and crossed three sources of data : spontaneous reports of drug of abuse–related disorders called NotS (‘Notification Spontanee’) collected by the regional addictovigilance centre, computerised hospital database Programme de Medicalisation des Systemes d’Information (PMSI) and toxicological analyses (TA) carried out for hospitalized patients.
    • Results : In 2007 and 2008, 1509 distinct cases were captured. After data modelling, the estimated number of psychoactive drug–related hospitalizations was 4744 (95%CI = 4060–5429). Most frequent products were opioids (34%), cannabis (19%) and cocaine (13%). ‘Multiple drugs’ were observed in 26% of cases. The incidence of serious drug-related complications in the area covered should be estimated at 5.7 (95%CI = 5.5–5.9) per thousand 15- to 64-year-old inhabitants. The exhaustiveness of sources were 0.4% (95%CI = 0.2–0.6) for NotS, 11.6% (95%CI = 10.7–12.5) for TA and 22.6% (95%CI = 21.4–23.8) for PMSI.
    • Conclusions  : The ‘real’ number of cases far exceeds that of cases that can be identified through simple counts. In particular, it confirms the underreporting and even quantifies its magnitude. These results confirm that drug users are frequently hospitalised and require heavy medical management. Moreover, these results show the real although limited advantage of hospitalization database in detecting drug associated disorders in epidemiological studies.
  • Référence : Pharmacoepidemiology and Drug Safety, 2012 (ahead of print)
  • Liens :
    • Résumé sur PubMed
    • Texte intégral sur addictovigilance.fr + (accès restreint aux seuls Centres d’Addictovigilance)