Applying a Time-Patterned Typology of Homelessness Among Individuals with Mental Illness

Identification of subgroups of the homeless populations, or typologies, has been an important research priority to guide homelessness services and policies. This study builds on previous typological research conducted in the general homeless population by focusing on individuals with mental illness to further delineate typologies within a more homogenous subset of the homeless population. A time-patterned typology based on episodes of street and shelter homelessness over a four-year period was applied to a sample of 246 individuals identified through mental health administrative records. Four groups were created based upon patterns of homelessness: 26.8% experienced homelessness for 4years, 13.4% had one episode of homelessness but were no longer homeless at the end ofthe follow-up, 48.4% had at least two episodes ofhomelessness, and 11.4% had a single episode of homelessness lasting 3months or less. Findings from a multinomial logistic regression indicated that gender, presence of a psychotic disorder, substance abuse, and year of study enrollment significantly predicted group membership. Residential trajectories upon exit from homelessness and at the end of the four-year follow-up were examined. Implications for current policy and future research are discussed. Highlights This study presents a typology of homelessness among a sample of individuals with mental illness. Homelessness patterns over 4years were examined using residential administrative data. A psychotic disorder diagnosis was associated with transitional or intermittent homelessness. Individuals with less severe psychiatric diagnoses may have unique barriers to housing.