These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Self-report adherence measures in chronic illness: retest reliability and predictive validity.
    Author: Jerant A, DiMatteo R, Arnsten J, Moore-Hill M, Franks P.
    Journal: Med Care; 2008 Nov; 46(11):1134-9. PubMed ID: 18953223.
    Abstract:
    BACKGROUND: Patient self-report is a practical method for measuring adherence, but little is known about its optimal use. OBJECTIVES: To examine the retest reliability and predictive validity of 3 different types of self-report adherence measures among patients with common chronic illnesses. RESEARCH DESIGN: Correlation and regression analyses of data from an ongoing randomized controlled trial. SUBJECTS: Patients (N = 415) aged >or=40 years recruited from a primary care network with arthritis, asthma, chronic lung disease, congestive heart failure, depression, and/or diabetes mellitus, plus impairment in >or=1 basic activity and/or a score of >or=4 on the 10-item Center for Epidemiologic Studies Depression Scale. MEASURES: : Self-report adherence (administered variously at baseline, 2, 4, and 6 weeks, and 6 months): number of pills taken/number of pills prescribed (PT/PP), using 1-7 days recall, and global reports of medication adherence and overall adherence tendencies. Six-month functional outcomes: Health Assessment Questionnaire (HAQ) and Short Form-36 (SF-36). RESULTS: Correlation coefficients among contemporaneously administered 1-7 days PT/PP measures were >or=0.78. Correlations among PT/PP measures and global adherence measures, and among PT/PP measures at 2 and 4 weeks, ranged from 0.11 to 0.54. PT/PP measures using >or=3-4 days recall significantly predicted adjusted 6-month HAQ but not SF-36 score. CONCLUSIONS: Self-report PT/PP and general medication adherence measures tap different behavioral constructs. Self-reported PT/PP at a given point in time is not necessarily representative of medication adherence over time. Among chronically ill patients, 3-4 days recall of PT/PP yield adherence estimates, which are practically as reliable and valid as longer intervals and which predict functional outcomes.
    [Abstract] [Full Text] [Related] [New Search]