Using a commercially available app for self-management of hypertension: Acceptance and usability study in Saudi Arabia (Preprint)
BACKGROUND The use of smartphone apps to assist in the self-management of hypertension is becoming increasingly common, but very few commercially available apps have the potential to be with adequate security and privacy safeguards and effective. In a previous study, we identified 5 apps that are potentially effective and safe, and, based on the preferences of doctors and patients, one (Cora Health) was selected as most suitable for use in a Saudi context. However, there is currently no evidence on its usability and acceptance among potential users. Indeed, there has been very little research into usability and acceptance of hypertension apps in general, and even less that considers the Gulf Region. OBJECTIVE To evaluate the acceptance and usability of the selected app in the Saudi context. METHODS This research used a mixed-methods approach with two studies: 1) a usability test involving patients in a controlled setting performing predefined tasks; and 2) a real-world usability study where patients used the app for four weeks. In the usability test, participants were asked to think aloud while performing the tasks, and an observer recorded how many tasks they completed. At the end of the real-world pilot study, participants were interviewed and the mHealth App Usability Questionnaire (MAUQ) was completed. Descriptive statistics were used to analyze quantitative data and thematic analysis was used to analyze qualitative data RESULTS A total of 10 patients completed study 1. The study found that app usability was moderate and participants needed some familiarization time before they could use the app proficiently. Some usability issues were revealed, related to app accessibility, navigation, etc. and a few tasks remained uncompleted by most people. Twenty patients completed study 2, with a mean age of 51.6. Study 2 found that the app was generally acceptable and easy to use, with some similar usability issues identified. Participants stressed the importance of practice and training to use it more easily and proficiently. Participants had a good engagement level with 48% retention at the end of study 2, with most participants’ engagement being classed as meaningful. The most recorded data was BP, followed by stress and medication, and the most accessed feature was viewing graphs of data trends. CONCLUSIONS This study showed that a commercially available app can be usable and acceptable in the self-management of hypertension, but also found a considerable number of possibilities for improvement, which need to be considered in future app development. The results show there is potential for a commercially-available app to be used in large-scale studies of hypertension self-management if suggestions for improvements are addressed. CLINICALTRIAL