Table 1.

The key themes from patients’ interviews during the feasibility study.

Themes	Questions
1. Operational feasibility of blood pressure measurement	How long do you need to measure your blood pressure every day?
	Do you feel the process of measuring or use of the instrument difficult for you?
2. Personal experience of home blood pressure monitoring in the past two weeks	What was the most impressive or favorite reminder that you received during the past two weeks and why?
	How did you feel during the past two-week measurement?
3. Factors affecting patients’ compliance with home blood pressure monitoring	What time of day do you usually measure your blood pressure?
	What are the reasons for why you persist in blood pressure measurement?
	Would it be easier for you to keep on measuring at the time chosen by yourself?
	Do you prefer a daily or weekly measurement?
4. Patients’ willingness to use an app to monitor blood pressure in the future	would it be better to use an app to automatically feedback blood pressure in the future?
	Would you like to measure your blood pressure every day in the future?