I am currently researching how text message prompts and similiar can help keep a patient's adherance to a health pathway but lack information on the environmental impact of hospitalisation  or further treatment as a result of non adherance.

I am aware of the Epic study by Albert Y Lie etal on HIV and radomised control.

Thanks for your help 

Randomized Controlled Trial of a Mobile Health Intervention to Promote Retention and Adherence to Preexposure Prophylaxis Among Young People at Risk for Human Immunodeficiency Virus: The EPIC Study

Randomized Controlled Trial of a Mobile Health Intervention to Promote Retention and Adherence to Preexposure Prophylaxis Among Young People at Risk for Human Immunodeficiency Virus: The EPIC Study