Participants using the Vire app and ToDo-CR program were 50% more likely to have a hospital admission, twice as likely to have an emergency department presentation and three times more likely to be admitted to hospital for a cardiac-related hospital admission. The analyses accounted for age, gender, diagnosis of diabetes and the presence of other chronic disease. The most frequent cause for admission was chest pain. These results may be explained by the Vire app and ToDo-CR program encouraging participants to seek medical attention if they experienced chest pain. These participants may have become more proactive in self-managing their coronary heart disease due to the prompt provided. Despite having more admissions, the intervention group costs associated with cardiac-related admissions were lower (intervention: $252.40 vs control: $859.30), meaning when they were admitted, they potentially had shorter length of stays, for less severe diagnoses, requiring less costly medical intervention and overall, less impact on the healthcare system.

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There was no statistically significant difference between or within groups in sedentary behaviour at 6-months or 12-months. Both groups continued to partake in 10-hours or more sedentary behaviour throughout the study. However, the participants using the Vire app and ToDo-CR program were partaking in 20-minutes less sedentary behaviour at 12-months. Further, those using the Vire app and ToDo-CR program who had prior experience using activity trackers and apps (30 participants) spent a significantly lower percentage of their day in sedentary behaviours, had shorter bouts of sedentary behaviour and overall lower sedentary time at 6-months compared to those without prior experience. There were no differences in the usual care group based on prior experience with activity trackers or apps.