Response and scene time of emergency medical services for open-globe injuries in the United States

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Hassaam S. Choudhry, BA
Helen Nguyen, BA
Shane T. Meledathu, BA
Skyler Peterson, MS
Benjamin Fisher, MS
Marco A. Zarbin, MD
Neelakshi Bhagat, MD

Abstract

Introduction
Timely access to medical care for open globe injuries (OGIs) may improve clinical outcomes. We aim to describe emergency medical services (EMS) response and scene times for OGIs.
Methods
A retrospective analysis was performed using 2017-2021 data from the National EMS Information System. Characteristics of EMS activations for OGI cases at primary impression were recorded, including: age, sex, day of the week, time of day, response mode to scene, region, and urbanicity. Multivariable binary logistic regression measured significant predictors of meeting the “8-minute response time” and “15-minute scene time,” the EMS benchmarks.
Results
Our study identified 68,050 eligible EMS activations for OGI. Most encounters involved males (55%), were emergent responses to the scene (lights and sirens) (85%), and were in urban areas (80%). EMS encounters for older age groups relative to the 1-15 years age group were significantly more likely to meet the “8-minute response time” (OR = 1.344; 95% CI, 1.226-1.473) but less likely to meet the “15-minute scene time” (OR = 0.625; 95% CI, 0.575-0.678). Emergent response to the scene was associated with greater adherence to the 8-minute (OR = 1.827; 95% CI, 1.743-1.916) but not the 15-minute (OR = 0.945; 95% CI, 0.892-0.978) benchmark. EMS response times in the Midwest compared to the West were significantly more likely to meet benchmark times (OR = 1.396; 95% CI, 1.306-1.492), while the South was less likely to meet the 8-minute response time (OR = 0.711, 95% CI, 0.669-0.754). Furthermore, response times in rural regions versus suburban areas were significantly less likely to meet response time benchmarks (OR = 0.787; 95% CI, 0.727-0.853). EMS encounters with female patients relative to males were significantly less likely to meet the 15-minute scene time benchmark (OR = 0.852; 95% CI, 0.825-0.879).

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How to Cite
1.
Choudhry HS, Nguyen H, Meledathu ST, Peterson S, Fisher B, Zarbin MA, Bhagat N. Response and scene time of emergency medical services for open-globe injuries in the United States. Digit J Ophthalmol. 2023;30. Accessed July 21, 2024. https://djo.harvard.edu/index.php/djo/article/view/1086
Section
Abstracts