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Acceptance and usability of a home-based monitoring tool of health indicators in children of people with dementia: a Proof of Principle (POP) study

Authors Boessen AB, Vermeulen J, de Witte LP

Received 17 February 2017

Accepted for publication 9 May 2017

Published 1 August 2017 Volume 2017:11 Pages 1317—1324

DOI https://doi.org/10.2147/PPA.S135022

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Akshita Wason

Peer reviewer comments 2

Editor who approved publication: Dr Johnny Chen

April BCG Boessen,1 Joan Vermeulen,2 Luc P de Witte3

1Research Centre for Technology in Care, Faculty of Health, Zuyd University of Applied Sciences, Heerlen, the Netherlands; 2Lunet zorg, Eindhoven, the Netherlands; 3The Innovation Centre, The University of Sheffield, Sheffield, UK

Background: Large-scale cohort studies are needed to confirm the relation between dementia and its possible risk factors. The inclusion of people with dementia in research is a challenge, however, children of people with dementia are at risk and are highly motivated to participate in dementia research. For technologies to support home-based data collection during large-scale studies, participants should be able and willing to use technology for a longer period of time.
Objective: This study investigated acceptance and usability of iVitality, a research platform for home-based monitoring of dementia health indicators, in 151 children of people with dementia and investigated which frequency of measurements is acceptable for them.
Methods: Participants were randomized to fortnightly or monthly measurements. At baseline and after 3 months, participants completed an online questionnaire regarding the acceptance (Technology Acceptance Model; 38 items) and usability (Post-Study System Usability Questionnaire; 24 items) of iVitality. Items were rated from 1 (I totally disagree) to 7 (I totally agree). Participants were also invited to take part in an online focus group (OFG) after 3 months of follow-up. Descriptive statistics and both two-sample/independent and paired t-tests were used to analyze the online questionnaires and a directed content analysis was used to analyze the OFGs.
Results: Children of people with dementia accept iVitality after long-term use and evaluate iVitality as a user-friendly, useful, and trusted technology, despite some suggestions for improvement. Overall, mean scores on acceptance and usability were higher than 5 (I somewhat agree), although the acceptance subscales “social influence” and “time” were rated somewhat lower. No significant differences in acceptance and usability were found between both protocol groups. Over time, “affect” significantly increased among participants measuring blood pressure fortnightly.
Conclusion: iVitality has the potential to be used in large-scale studies for home-based monitoring of health indicators related to the development of dementia.

Keywords: dementia, risk factors, e-health, telemonitoring, acceptance, usability

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