Abstract

Objective Housing insecurity is an important socioeconomic factor that may impact emergency department (ED) use for children with asthma, but housing insecurity screening has primarily relied on patient surveys or linkage to external data sources. Using patient addresses recorded in the electronic medical record (EMR), we sought to correlate recent changes in address (as a proxy for housing insecurity) with ED revisit risk. Methods We retrospectively identified patients age 2–17 years seen in our rural ED for asthma exacerbation during 2016–2018. We used EMR data from the 12 months before the earliest ED visit to compare patients with and without a recent change of address (over previous 12 months) on 30- and 90-day all-cause and asthma-specific ED revisits. Results The study included 632 children, of whom 85 (13%) had a recent address change before the index ED visit. Moving was not associated with asthma-specific 30-day or 90-day revisits. Ninety-day all-cause revisits were more common among patients who had recently moved (36% vs. 25%; p = 0.019), although this difference was not statistically significant after multivariable adjustment for Medicaid insurance coverage and number of recent health system encounters (odds ratio: 1.49; 95% confidence interval: 0.91, 2.46; p = 0.114). Conclusions A history of recent address change in the EMR was not independently associated with repeat ED visits for asthma exacerbation. Many children presenting to the ED did not have recent encounters with our health system where address could be ascertained. This EMR-based proxy for housing insecurity may be more applicable to patients under continuous follow-up.

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