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Annals of family medicine · Jan 2023
The Impact of Community Health Information Exchange Usage on Time to Reutilization of Hospital Services.
- Chantel Sloan-Aagard, Jeffrey Glenn, Juan Nañez, Scott B Crawford, J C Currey, and Emily Hartmann.
- Paso del Norte Health Information Exchange, El Paso, Texas chantel.sloan@byu.edu.
- Ann Fam Med. 2023 Jan 1; 21 (1): 192619-26.
PurposeFew studies have determined whether clinician usage of a community health information exchange (HIE) directly improves patient care transitions. We hypothesized that lookup in the HIE by primary care physicians of patients recently released from the hospital would increase the time until hospital reuse.MethodsWe identified a retrospective cohort of 8,216 hospital inpatients aged over 18 years that were discharged from January 1, 2021 through November 30, 2021 using the Paso del Norte Health Information Exchange, in El Paso County, Texas. All patients had a primary care physician visit within 30 days after hospital discharge, and we identified patients that were looked up in the HIE close to that visit. Of the cohort, 2,627 were rehospitalized and 3,809 visited an emergency department (ED) during the follow-up window. The remaining 1,780 patients were controls. We conducted survival analysis, censoring at the second ED or inpatient visit or end of the study window (January 31, 2022). The model was adjusted by ethnicity, gender, insurance, and age.ResultsLookup in the HIE was significantly associated with reducing the likelihood of visiting the ED by 53% and being rehospitalized by 61%. Lookup in the HIE was associated with an increased median time to use of the ED after inpatient discharge from 99 to 238 patient days. Ethnicity, insurance, gender, and age were also significant predictors of hospital reuse.ConclusionsIncreased utilization of community HIEs by primary care physicians on behalf of their recently discharged patients may dramatically increase the time until inpatient or ED reuse.© 2023 Annals of Family Medicine, Inc.
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