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Authors: Zhuqing Zhong 1 ; 2 ; 3 ; Aijing Luo 1 ; Wenzhao Xie 1 ; 2 ; Siqing Ding 2 ; 3 ; Shuangjiao Shi 2 ; 3 ; Yinglong Duan 2 and Feng Zheng 2

Affiliations: 1 Key Laboratory of Medical Informatics Research, Central South University, College of Hunan Province, Changsha 410013, China ; 2 Third Xiangya Hospital, Central South University, Tongzipo Road, Yuelu District, Changsha 410013, China ; 3 Xiangya Nursing School, Central South University, Tongzipo Road, Yuelu District, Changsha 410013, China

Keyword(s): Hypertension, Medication Literacy, Scale, Reliability, Validity.

Abstract: Objective: To develop the medication literacy scale for patients with hypertension, and to test the reliability and validity of the scale. Methods The initial draft of the scale was formulated based on a theoretical framework of medication literacy with four domains of knowledge, attitude, skill and practice, and developed through procedures of literature review, expert meetings and consultations, patient interviews and focus group discussions. In this study, 260 patients with hypertension in Changsha city of China were selected to conduct a pilot survey. After item selection by a series of statistical analysis method and item re-wording according to patients’ feedback, the scale was revised to form a formal investigation scale with four domains and 37 items. A formal investigation was carried out on 650 patients with hypertension selected purposively in a tertiary general hospital and two community health service centers in Changsha city. The reliability and validity of the scale we re analyzed. Results: Finally, the formal scale consists of four dimensions on knowledge, attitude, practice and skills, 11 loading factors and 37 items in total. S-CVI of the scale was 0.968, and the I-CVI for each item ranged from 0.833 to 1.000, indicating good and acceptable content and face validity. The Cronbach’s α coefficient was 0.849 for the overall scale and ranged from 0.744 to 0.783 for 4 dimensions. The Pearson correlation coefficient between each of the four dimension and the total scale was 0.530-0.799. Besides, the Pearson correlation coefficient among each dimension of the scale ranged from 0.157 to 0.439. The split-half reliability coefficient was 0.893 for the total scale and ranged from 0.793 to 0.872 for four dimensions. The test-retest reliability coefficient of the total scale was 0.968 and ranged from 0.880 to 0.959 for four dimensions. 11 common loading factors were extracted through exploratory factor analysis, and the cumulative variance contribution rate of individual domains were 56.111%-64.419%. The confirmatory factor analysis showed the fit indices of the four-dimension 11-factor model as follows (2/df=2.629,GFI=0.804,AGFI=0.777,RMR=0.012,IFI=0.746,RMSEA=0.066,PNFI=0.599,PCFI=0.689), which indicated good model fit. Conclusions: The medication literacy scale for hypertensive patients has good reliability and validity, which is suitable and acceptable for evaluating the medication literacy level of hypertension patients in China. In the future, English translation of this scale is required, so that this scale can be further validated and applied worldwide. (More)

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Paper citation in several formats:
Zhong, Z.; Luo, A.; Xie, W.; Ding, S.; Shi, S.; Duan, Y. and Zheng, F. (2020). The Development and Psychometric Assessment of Medication Literacy Scale for Hypertensive Patients. In Proceedings of the 13th International Joint Conference on Biomedical Engineering Systems and Technologies (BIOSTEC 2020) - HEALTHINF; ISBN 978-989-758-398-8; ISSN 2184-4305, SciTePress, pages 56-65. DOI: 10.5220/0008916300560065

@conference{healthinf20,
author={Zhuqing Zhong. and Aijing Luo. and Wenzhao Xie. and Siqing Ding. and Shuangjiao Shi. and Yinglong Duan. and Feng Zheng.},
title={The Development and Psychometric Assessment of Medication Literacy Scale for Hypertensive Patients},
booktitle={Proceedings of the 13th International Joint Conference on Biomedical Engineering Systems and Technologies (BIOSTEC 2020) - HEALTHINF},
year={2020},
pages={56-65},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0008916300560065},
isbn={978-989-758-398-8},
issn={2184-4305},
}

TY - CONF

JO - Proceedings of the 13th International Joint Conference on Biomedical Engineering Systems and Technologies (BIOSTEC 2020) - HEALTHINF
TI - The Development and Psychometric Assessment of Medication Literacy Scale for Hypertensive Patients
SN - 978-989-758-398-8
IS - 2184-4305
AU - Zhong, Z.
AU - Luo, A.
AU - Xie, W.
AU - Ding, S.
AU - Shi, S.
AU - Duan, Y.
AU - Zheng, F.
PY - 2020
SP - 56
EP - 65
DO - 10.5220/0008916300560065
PB - SciTePress