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KMID : 0379220210410010149
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Journal of Korea Gerontological Society
2021 Volume.41 No. 1 p.149 ~ p.168
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Development of medication adherence scale for the elderly with chronic disease
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Kang Sook
Kim Jeong-Sun
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Abstract
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This study was to develop the Medication Adherence Scale in Elderly (MAS-E) with chronic disease and verify its reliability and validity. The MAS-E was developed in 5 steps: Configuration of conceptual frame by content analysis, preliminary items, pilot study, reliability and validity test, and development of final MAS-E with chronic disease. The questionnaires were collected from 345 adults with one-to-one interviews. Verification of its reliability and validity was divided into two phases. Reliability was tested using Cronbach's alpha, split-halves reliability, and test-retest. For validity tests, item analysis, factor analysis, total score-factor score correlation analysis, and criterion related validity were used. The developed scale consisted of 18 items and 4 factors - remember of taking medication (2 items), expectations for drug effects (5 items), practice taking medication according to instructions (8 items), communicating with health professionals (3 items), and explained 69.7% of total variance. The scale had significantly positive correlation (r = .72, p <.001) with the Morisky Medication Adherence Scale (MMAS-8). Cronbach’s alpha was .91, Guttman split half coefficient was .80, and test-retest reliability was .912. Finding suggest that the MAS-E is a suitable scale to assess the status of medication adherence in elderly with chronic disease.
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KEYWORD
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elderly, medication adherence, chronic disease, scale
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