Effectiveness of an mHealth Intervention for Youth With Congenital Heart Disease

The aims of this study were to evaluate the long-term effectiveness of the Care \& Organize Our Lifestyle (COOL) program, a self-regulation theory-based mHealth program, on improving disease knowledge and physical activity in youth with congenital heart disease (CHD). The COOL program is a 12-month randomized controlled trial that compared two active intervention groups to a standard-care control group (n = 47). Participants with simple and moderate CHD aged 15-24 years were recruited from pediatric or adult CHD outpatient departments. Participants in one active intervention group (n = 49) were provided with COOL Passport, a mobile healthcare application. Those in the other group (n = 47) were provided with access to the Health Promotion Cloud system and use of game-based interactive platforms along with COOL Passport. Outcomes were the Leuven Knowledge Questionnaire for CHD and the International Physical Activity Questionnaire-Taiwan Show-Card Version.