Reliability and validity of a 12-item medication adherence scale for patients with chronic disease in Japan.
Reliability and validity of a 12-item medication adherence scale for patients with chronic disease in Japan.
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日本患有慢性病患者的12个项目药物依从性量表的可靠性和有效性。
DOI：
10.1186/s12913-018-3380-7
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发表时间：
2018-07-31
影响因子：
2.8
通讯作者：
Kiuchi T
中科院分区：
文献类型：
--
作者：
Ueno H;Yamazaki Y;Yonekura Y;Park MJ;Ishikawa H;Kiuchi T
为了改善和支持慢性病患者的用药依从性，特别是长期用药，重要的是要考虑他们与医疗保健提供者的关系及其生活方式。我们测试了修改后的 12 项药物依从量表的信度和效度。我们将 2009 年创建的 14 项药物依从性测量修订为更简洁、清晰的 12 项版本，并验证了 12 项量表的信度和效度。我们纳入了2011年至2014年参加日本慢性病自我管理计划的328名慢性病患者。采用验证性因素分析来评估评估的四个因素是否与之前的14项药物依从量表相同。采用Cronbach系数α评估内部一致性信度，并将患者人口特征与用药依从性之间的关系与既往研究进行比较。这12个项目分为四个因素“用药依从性”、“与医疗保健提供者的合作”、“愿意获取和使用药物信息”和“接受服药以及服药如何适应患者的生活方式”。验证性因子分析显示χ2/df = 2.6，CFI = 0.94，RMSEA = 0.069。 12 项量表的 Cronbach α 值为 0.78。四个分量表的 Cronbach’s alpha 分别为 0.74、0.81、0.67 和 0.45。较高的药物依从性与女性患者、与其他人同住以及年龄 40-49 岁与 20-29 岁患者显着相关。这些关系与之前的研究相同。我们将原来的 14 项量表修改为慢性病患者的 12 项药物依从量表，该量表考虑了他们与医疗保健提供者和生活方式的关系。由于子量表的可靠性相对较低，可能需要进行细化。然而，修改后的量表预计将有助于更有效地自我管理药物并提高药物依从性，特别是不仅在日本而且在其他国家需要长期药物治疗的慢性病患者。本文的在线版本 (10.1186/s12913-018-3380-7) 包含补充材料，可供授权用户使用。
To improve and support medication adherence among patients with chronic diseases, especially for long-term medication, it is important to consider both their relationship with healthcare providers and their lifestyle. We tested the reliability and validity of a modified 12-item Medication Adherence Scale. We revised a 14-item measure of medication adherence, created in 2009, to a more concise and clear 12-item version, and we verified the reliability and validity of the 12-item scale. We included 328 patients with chronic diseases participating in the Chronic Disease Self-Management Program in Japan from 2011 to 2014. Confirmatory factor analysis was used to assess whether the four factors assessed were the same as the previous 14-item Medication Adherence Scale. Cronbach’s coefficient alpha was used to assess internal consistency reliability, and the relationships between patient demographic characteristics and medication adherence were compared with previous studies. The 12 items were categorized into the four factors “medication compliance”, “collaboration with healthcare providers”, “willingness to access and use information about medication”, and “acceptance to take medication and how taking medication fits patient’s lifestyle”. Confirmatory factor analysis showed χ2/df = 2.6, CFI = 0.94, and RMSEA = 0.069. Cronbach’s alpha for the 12-item scale was 0.78. Cronbach’s alpha for the four subscales was 0.74, 0.81, 0.67, and 0.45. Higher medication adherence was significantly associated with being a female patient, living with someone else, and age 40–49 years versus age 20–29 years. These relationships were the same as in previous studies. We modified our original 14-item scale to a 12-item Medication Adherence Scale for patients with chronic diseases, which considers their relationship with healthcare providers and lifestyle. Refinement might be needed because of the relatively low reliability of subscales. However, the modified scale is expected to contribute to more effective self-management of medication and to improving medication adherence, particularly among patients with chronic diseases who require long-term medication not only in Japan but also in other countries. The online version of this article (10.1186/s12913-018-3380-7) contains supplementary material, which is available to authorized users.
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