Intervention
hypertension
BLOOD, HYPERTENSION
The mHealth app–based intervention contains three components: (1) a mobile app named Blood Pressure Assistant, (2) nurse training on the use of the app, and (3) an accredited “health manager” team that follows up with the patient users.Blood Pressure Assistant was codeveloped by the General Hospital of Ningxia Medical University and Zhejiang University to support patients’ self-management of hypertension in Ningxia, China, where there is a high prevalence of hypertension due to a high-salt diet [Patients could self-manage hypertension using the 6 interactive functional modules in Blood Pressure Assistant: health education, health management plan, health checkup, health report, reminders to perform self-management behaviors, and performance ranking. Patients recorded BP readings and other self-management data in the app, including BP and heart rate, medication type and dose, weight, diet, salt intake, physical exercise, and uncomfortable symptoms. Digital questionnaire surveys were also available to assess patient awareness of hypertension, self-management behaviors, and user satisfaction (Functional modules in Blood Pressure Assistant.