Utilization of Ophthalmologist Consultation for Emergency Care at a University Hospital

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Abstract

Importance

Nearly 2 million patients visit emergency departments (EDs) because of eye concerns annually in the United States. How hospitals currently assign these patients to treatment is important for designing systems that equitably allocate resources for eye care in urgent settings.

Objective

To investigate factors associated with ophthalmology consultation for eye-related adult ED encounters to assess possible disparities by sex, race/ethnicity, language preference, or residential distance from the medical center.

Design, Setting, and Participants

Retrospective observational study of 13 361 adult ED encounters associated with an eye-related billing diagnosis between January 1, 2010, and September 30, 2015, at the University of Michigan Medical Center in Ann Arbor.

Exposures

Measures available from the University of Michigan clinical data warehouse included age, sex, race/ethnicity, preferred language, home distance from the ED, calendar year of encounter, and Charlson-Deyo Comorbidity Index score.

Main Outcomes and Measures

Association of the ED encounter with ophthalmology consultation. An ophthalmology consultation was identified by cross-referencing ophthalmology faculty and clinical instructors from 2010 to 2015 against billing providers for consultations using the Charlson-Deyo Comorbidity Index score and billing codes. Measures included patient age, sex, race/ethnicity, home address, preferred language (English vs non-English), and calendar year of encounter.

Results

Among the 13 361 encounters, 6840 (51.2%) involved a female patient. Mean (SD) age at encounter was 50.7 (19.3) years; 10 033 patients (75.1%) were of white and 1969 (14.7%) of black race/ethnicity. English was the preferred language for 13 022 patients (97.5%). The ophthalmology service was consulted in 5289 encounters (39.6%). Black patients had significantly lower odds of an ophthalmology consultation than white patients (odds ratio [OR], 0.85; 95% CI, 0.75-0.96). Patients who preferred a non-English language had significantly lower odds of receiving an ophthalmology consultation (OR, 0.73; 95% CI, 0.55-0.98).

Conclusions and Relevance

Many of the 13 361 eye-related ED encounters were managed by ED clinicians with no ophthalmology consultation. Patients who were black or who preferred a language other than English were less likely to have an ophthalmologist involved in their care. The associations found in this observational study do not imply causation but suggest disparities in care that should be further investigated.

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