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Conceptualization, Development and Psychometric Evaluations of a New Medication-Related Health Literacy Instrument: The Chinese Medication Literacy Measurement

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  • Hsiang-Wen Lin

    (School of Pharmacy and Graduate Institute, College of Pharmacy, China Medical University, Taichung City 404333, Taiwan
    Department of Pharmacy, China Medical University Hospital, Taichung City 404332, Taiwan
    Department of Pharmacy System, Outcomes and Policy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA
    Both authors contributed equally to this work and shared first authorship.)

  • Elizabeth H. Chang

    (Department of Clinical Pharmacy, School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei City 110301, Taiwan
    Research Center for Pharmacoeconomics, College of Pharmacy, Taipei Medical University, Taipei City 110301, Taiwan
    Department of Pharmacy, Wan Fang Hospital, Taipei Medical University, Taipei City 116081, Taiwan
    Both authors contributed equally to this work and shared first authorship.)

  • Yu Ko

    (Department of Clinical Pharmacy, School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei City 110301, Taiwan
    Research Center for Pharmacoeconomics, College of Pharmacy, Taipei Medical University, Taipei City 110301, Taiwan)

  • Chun-Yu Wang

    (Department of Pharmacy, Shin Kong Wu Ho-Su Memorial Hospital, Taipei City 111045, Taiwan
    Taiwan International Pharmacy Advancement Association, Taipei City 100006, Taiwan)

  • Yu-Shan Wang

    (School of Pharmacy and Graduate Institute, College of Pharmacy, China Medical University, Taichung City 404333, Taiwan)

  • Okti Ratna Mafruhah

    (School of Pharmacy and Graduate Institute, College of Pharmacy, China Medical University, Taichung City 404333, Taiwan)

  • Shang-Hua Wu

    (Department of Pharmacy, Songde Branch, Taipei City Hospital, Taipei City 110209, Taiwan)

  • Yu-Chieh Chen

    (School of Pharmacy and Graduate Institute, College of Pharmacy, China Medical University, Taichung City 404333, Taiwan
    Department of Pharmacy, China Medical University Hospital, Taichung City 404332, Taiwan)

  • Yen-Ming Huang

    (Graduate Institute of Clinical Pharmacy, College of Medicine, National Taiwan University, Taipei City 100025, Taiwan
    Department of Allied and Population Health, College of Pharmacy and Allied Health Professions, South Dakota State University, Brookings, SD 57007, USA
    Both authors contributed equally as the corresponding authors.)

Abstract

There is a need for valid and reliable instruments to focus on medication aspects of health literacy and help healthcare professionals address patients’ barriers to medication use. This cross-sectional study describes the conceptualization, development, and psychometric properties of the first Chinese Medication Literacy Measurement (ChMLM) to assess the level of health literacy on medication use. The 17-item ChMLM (ChMLM-17) and its short form, 13-item ChMLM (ChMLM-13), consist of four sections (vocabulary, over-the-counter labels, prescription labels, and advertisements) to cover six domains of medication-related health literacy. Multistage stratified quota sampling was attempted to recruit a representative sample in Taiwan. Receiver operating characteristic curves were used to identify the cut-off point for differentiating high and low medication literacy. Psychometric analyses were performed ( n = 1410) to assess the reliability and validity separately on all samples and sociodemographic subgroups. The 17- and 13-item versions both had high construct validity among all patients and patients with low medication literacy. The developed ChMLM-17 and ChMLM-13 is expected to help healthcare providers and researchers to accurately measure medication-related health literacy and improve medication use in the real-world practice.

Suggested Citation

  • Hsiang-Wen Lin & Elizabeth H. Chang & Yu Ko & Chun-Yu Wang & Yu-Shan Wang & Okti Ratna Mafruhah & Shang-Hua Wu & Yu-Chieh Chen & Yen-Ming Huang, 2020. "Conceptualization, Development and Psychometric Evaluations of a New Medication-Related Health Literacy Instrument: The Chinese Medication Literacy Measurement," IJERPH, MDPI, vol. 17(19), pages 1-17, September.
  • Handle: RePEc:gam:jijerp:v:17:y:2020:i:19:p:6951-:d:417844
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    References listed on IDEAS

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    1. Katsuyuki Nakagami & Toyoaki Yamauchi & Hiroyuki Noguchi & Tohru Maeda & Tomoko Nakagami, 2014. "Development and validation of a new instrument for testing functional health literacy in Japanese adults," Nursing & Health Sciences, John Wiley & Sons, vol. 16(2), pages 201-208, June.
    2. Virtudes Pérez-Jover & José J. Mira & Concepción Carratala-Munuera & Vicente F. Gil-Guillen & Josep Basora & Adriana López-Pineda & Domingo Orozco-Beltrán, 2018. "Inappropriate Use of Medication by Elderly, Polymedicated, or Multipathological Patients with Chronic Diseases," IJERPH, MDPI, vol. 15(2), pages 1-14, February.
    3. Marilyn M. Schapira & Cindy M. Walker & Kevin J. Cappaert & Pamela S. Ganschow & Kathlyn E. Fletcher & Emily L. McGinley & Sam Del Pozo & Carrie Schauer & Sergey Tarima & Elizabeth A. Jacobs, 2012. "The Numeracy Understanding in Medicine Instrument," Medical Decision Making, , vol. 32(6), pages 851-865, November.
    4. Xinying Sun & Juan Chen & Yuhui Shi & Qingqi Zeng & Nanfang Wei & Ruiqian Xie & Chun Chang & Weijing Du, 2013. "Measuring Health Literacy Regarding Infectious Respiratory Diseases: A New Skills-Based Instrument," PLOS ONE, Public Library of Science, vol. 8(5), pages 1-8, May.
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