HSR&D Citation Abstract
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Development of a homelessness risk screening tool for emergency department patients.
Doran KM, Johns E, Zuiderveen S, Shinn M, Dinan K, Schretzman M, Gelberg L, Culhane D, Shelley D, Mijanovich T. Development of a homelessness risk screening tool for emergency department patients. Health services research. 2022 Apr 1; 57(2):285-293.
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.
Linked data from (1) ED patient baseline questionnaires and (2) citywide administrative homeless shelter database.
Stakeholder-informed predictive modeling utilizing ED patient questionnaires linked with prospective shelter administrative data. The outcome was shelter entry documented in administrative data within 6 months following the baseline ED visit. Exposures were responses to questions on homelessness risk factors from baseline questionnaires.
DATA COLLECTION/EXTRACTION METHODS:
Research assistants completed questionnaires with randomly sampled ED patients who were medically stable, not in police/prison custody, and spoke English or Spanish. Questionnaires were linked to administrative data using deterministic and probabilistic matching.
Of 1993 ED patients who were not homeless at baseline, 5.6% entered a shelter in the next 6 months. A screening tool consisting of two measures of past shelter use and one of past criminal justice involvement had 83.0% sensitivity and 20.4% positive predictive value for future shelter entry.
Our study demonstrates the potential of using cross-sector data to improve hospital initiatives to address patients' social needs.