List at least 5 variables that can be selected to evaluate a cardiology department efficiency with the following operational problems :

1. The cardiology department does not accept Medicaid. Therefore, anyone with Medicaid will have to pay out-of-pocket costs in full.

2. The department is constantly having to negotiate contracts with insurance companies so that the department receives more patients

3. There is a lack of facilities for procedures and clinic availability in the Cardiology department