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  1. Pill count, self-report, and pharmacy claims data to measure medication adherence in the elderly.

    Article - En anglais

    OBJECTIVE 

    To compare medication adherence calculated from four different data sources including a pill count and self-report obtained during a home medication history, as well as calculations based on refill frequency derived from a provincial prescription claims database (manual and electronic).

    DESIGN 

    Baseline medication adherence was collected as part of a prospective, randomized, controlled study.

    Mean medication adherence results obtained from the four data sources were compared using repeated-measures ANOVA followed by a Tukey's multiple range test.

    SETTING 

    A pharmacy consultation service located at an interdisciplinary wellness center for noninstitutionalized elderly.

    PATIENTS 

    65 years or older, noninstitutionalized, taking one or more prescribed or nonprescribed medications.

    Clients would either present to the wellness center or be referred by the Provincial Home Care program.

    RESULTS 

    When calculated from self-report or manual or electronic prescription claims data, mean percent adherence by drug was high and not statistically different (95.8% ± 17.1%, 107.6% ± 40.3%, and 94.6% ± 24.0%, respectively), whereas the pill count adherence was significantly lower at 74.0% ± 41.5% (p<0.0001).

    CONCLUSIONS 

    An unexpected finding was that the pill count technique used in this study of elderly clients using chronic, repeat medications appeared to underestimate medication adherence. (...)

    Mots-clés Pascal : Observance médicamenteuse, Source information, Base donnée, Etude comparative, Ambulatoire, Pharmacie officine, Méthode étude, Vieillard, Homme, Prescription médicale, Comptage, Autoévaluation, Médicament, Canada, Amérique du Nord, Amérique

    Mots-clés Pascal anglais : Drug compliance, Information source, Database, Comparative study, Ambulatory, Drugstore, Investigation method, Elderly, Human, Medical prescription, Counting, Self evaluation, Drug, Canada, North America, America

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 98-0411367

    Code Inist : 002B02A07. Création : 25/01/1999.