Interventions supporting long term adherence and decreasing cardiovascular events after myocardial infarction (ISLAND): pragmatic randomised controlled trial

Canadian RCT (n=2,632) found that mail only (mail outs to promote adherence), and phone calls + mail outs increased the chances of cardiac rehabilitation completion vs usual care (OR 1.55, 95% CI 1.18-2.03), but neither had significant increases in adherence to medication.

Source:

British Medical Journal