Screening and Risk Algorithms

MAPLe (Method for Assigning Priority Levels)

MAPLe, derived from the Home Care instrument, differentiates service seekers into five levels based on their risk of adverse outcomes. Research has demonstrated that individuals in the highest level are nearly nine times more likely to be admitted to a long- term care facility than are the lowest level. PDF

MI Choice

MI Choice, derived from the Home Care instrument, groups individuals in one of five categories: nursing home, home care, intermittent personal care, homemaker, and information & referral. The screen can be done over the phone (thus reducing costs) to identify persons who are not likely to meet health, cognitive, and functional criteria for home care or institutional services. PDF

Assessment and Service Urgency

The assessment urgency and service urgency algorithms are both derived from the Contact Assessment. They address the person’s need for comprehensive assessment and initiation of community services. They can also be used in hospital emergency departments or community/hospital intake.


The DIVERT is a risk scale for unplanned emergency room trips. Higher scores in the scale (1 to 6) indicate higher risk for unplanned emergency department use. PDF


The six-level ChAMPs algorithm is used to inform the need and urgency of timing for a comprehensive face-to-face mental health assessment or service for children and youth between the ages of 4-18 years.