Validation of the Test of Adherence to Inhalers (TAI) among Taiwanese patients with chronic obstructive pulmonary disease

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Wang, Y-H, Yang, T-M, Fang, T-P, Ou, H-T, Yang, S-C, Huang, C-M, Griffiths, MD ORCID: https://orcid.org/0000-0001-8880-6524 and Lin, C-Y, 2025. Validation of the Test of Adherence to Inhalers (TAI) among Taiwanese patients with chronic obstructive pulmonary disease. Medical Science Monitor, 31: e948762. ISSN 1234-1010

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Official URL: https://doi.org/10.12659/msm.948762

Abstract

Background: It is important to have a psychometrically sound instrument assessing inhaler adherence of patients with chronic obstructive pulmonary disease (COPD). The present cross-cultural study aimed to validate the Chinese translation of the 10-item Test of Adherence to Inhalers (TAI) among 235 Taiwanese patients with COPD.

Material and methods: The TAI was translated into Chinese and validated for Taiwanese patients with COPD. Eight experts evaluated the Chinese TAI, and their scores were used to examine content validity. Then, a total of 235 COPD patients (93.6% male, n=220; mean age=72.18 years, SD=10.19) were recruited using convenience sampling. A research assistant and a respiratory therapist conducted interviews to help patients complete the TAI and other related measures. Exploratory factor analysis, internal consistency, and relationship between TAI-defined adherence groups and the statement “Don’t take medicine when there are no symptoms” were used to validate the Chinese TAI.

Results: The content validity and internal consistency of the Chinese TAI were good (content validity index=0.975 for relevance, and 0.988 for clarity; α=0.82). The exploratory factor analysis suggested a single-factor structure. Moreover, the TAI-defined adherence groups had significantly different responses to the statement “Don’t take medicine when there are no symptoms”.

Conclusions: The Chinese TAI assessing inhaler adherence among Taiwanese patients with COPD effectively helps patients with COPD to identify their inhaler adherence. Researchers and healthcare providers can use the translated TAI to monitor adherence to inhaler for patients with COPD in Taiwan.

Item Type:	Journal article
Publication Title:	Medical Science Monitor
Creators:	Wang, Y.-H., Yang, T.-M., Fang, T.-P., Ou, H.-T., Yang, S.-C., Huang, C.-M., Griffiths, M.D. and Lin, C.-Y.
Publisher:	International Scientific Information, Inc.
Date:	6 May 2025
Volume:	31
ISSN:	1234-1010
Identifiers:	Number Type 10.12659/msm.948762 DOI 2441669 Other
Rights:	© Med Sci Monit, 2025. This paper has been published under Creative Common Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) allowing to download articles and share them with others as long as they credit the authors and the publisher, but without permission to change them in any way or use them commercially.
Divisions:	Schools > School of Social Sciences
Record created by:	Laura Borcherds
Date Added:	21 May 2025 09:48
Last Modified:	21 May 2025 09:48
URI:	https://irep.ntu.ac.uk/id/eprint/53635