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Developing an interactive mobile phone self-report system for self-management of hypertension. Part 2: Content validity and usability
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2014 (English)In: Blood Pressure, ISSN 0803-7051, Vol. 23, no 5, 296-306 p.Article in journal (Refereed) Published
Abstract [en]

Self-management support tools using technology may improve adherence to hypertension treatment. There is a need for user-friendly tools facilitating patients' understanding of the interconnections between blood pressure, wellbeing and lifestyle. This study aimed to examine comprehension, comprehensiveness and relevance of items, and further to evaluate the usability and reliability of an interactive hypertension-specifi c mobile phone self-report system. Areas important in supporting self-management and candidate items were derived from five focus group interviews with patients and healthcare professionals (n = 27), supplemented by a literature review. Items and response formats were drafted to meet specifications for mobile phone administration and were integrated into a mobile phone data-capture system. Content validity and usability were assessed iteratively in four rounds of cognitive interviews with patients (n = 21) and healthcare professionals (n = 4). Reliability was examined using a test-retest. Focus group analyses yielded six areas covered by 16 items. The cognitive interviews showed satisfactory item comprehension, relevance and coverage; however, one item was added. The mobile phone self-report system was reliable and perceived easy to use. The mobile phone self-report system appears efficiently to capture information relevant in patients' self-management of hypertension. Future studies need to evaluate the effectiveness of this tool in improving self-management of hypertension in clinical practice.

Place, publisher, year, edition, pages
2014. Vol. 23, no 5, 296-306 p.
Keyword [en]
Cellular phone, content validity, hypertension, medication adherence, self-care, usability
National Category
Cardiac and Cardiovascular Systems
URN: urn:nbn:se:uu:diva-235308DOI: 10.3109/08037051.2014.901009ISI: 000342202100007PubMedID: 24786778OAI: oai:DiVA.org:uu-235308DiVA: diva2:761268
Available from: 2014-11-06 Created: 2014-10-30 Last updated: 2014-11-06Bibliographically approved

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Ring, Lena
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