• Anne M Gadermann, Mohammad Ehsanul Karim, Monica Norena, Scott D Emerson, Anita M Hubley, Lara B Russell, Rosane Nisenbaum, Stephen W Hwang, Tim Aubry, and Anita Palepu.
• Centre for Health Evaluation and Outcome Sciences, St. Paul's Hospital, Vancouver, Canada. anne.gadermann@ubc.ca.
• J Urban Health. 2020 Apr 1; 97 (2): 239-249.

AbstractThe present study examined the association of residential instability with hospitalizations among homeless and vulnerably housed individuals over a 4-year time period. Survey data were linked to administrative records on hospitalizations. Specifically, we used data from the Health and Housing in Transition study, a prospective cohort study that tracked the health and housing status of homeless and vulnerably housed individuals in Canada. Responses from Vancouver-based participants (n = 378) from baseline and 3 follow-ups were linked to their administrative health records on hospitalizations (Discharge Abstract Database - Hospital Separation Files; 2008-2012). A generalized estimating equations model was used to examine associations between the number of residential moves and any hospitalizations during each year (none versus ≥ 1 hospitalizations). Analyses included demographic and health variables. Survey data were collected via structured interviews. Hospitalizations were derived from provincial administrative health records. A higher number of residential moves were associated with hospitalization over the study period (adjusted odds ratio: 1.14; 95% confidence interval: 1.01, 1.28). Transgender, female gender, perceived social support, better self-reported mental health, and having ≥ 3 chronic health conditions also predicted having been hospitalized over the study period, whereas high school/higher education was negatively associated with hospitalizations. Our results indicate that residential instability is associated with increased risk of hospitalization, illustrating the importance of addressing housing as a social determinant of health.

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