Development of a homelessness risk screening tool for emergency department patients.

Objective: To develop a screening tool to identify emergency department (ED) patients at risk of entering a homeless shelter, which could inform targeting of interventions to prevent future homelessness episodes.

Data Sources: Linked data from (1) ED patient baseline questionnaires and (2) citywide administrative homeless shelter database.

Study Design: Stakeholder-informed predictive modeling utilizing ED patient questionnaires linked with prospective shelter administrative data.