Incidence of Orbital Cellulitis in Children: A Population-Based Study
Author: Caroline Vloka
Base Hospital / Institution: University of Colorado
Abstract ID: 25-137
Purpose
To quantify the incidence of orbital cellulitis (OC) according to age, sex, race, and ethnicity among children younger than 18 in Colorado and to project the incidence rate and burden of OC to the national and international level.
Methods
This was a retrospective observational surveillance study of patients younger than 18 with radiographically confirmed orbital cellulitis from Colorado from January 1, 2018, to December 31, 2022.
Results
We identified 185 radiographically confirmed cases of orbital cellulitis (OC) in an at-risk population of 6,215,564 person-years. The crude rate (CR) and age-standardized incidence rate (ASR) of OC were 2.98/100,000) and 3.00/100,000, respectively. Five-year-old patients had the highest age-specific incidence rate (ASIR) of OC (5.97/100,000) while those younger than one year old, as well as 16 and 17 years old had a significantly lower ASIR of 0.64, 0.27, and 0.82/100,000 respectively (p<0.05). Males were affected twice as commonly as females (ASR = 3.99 and 1.96 cases per 100,000, respectively, p<0.05). Incidence of OC was significantly higher in Black/African American (Black/AA) as compared to White children (ASR =4.95 v. 2.89/100,000, p<0.05). The ASR was higher among non-Hispanic/Latino (non-H/L) than Hispanic/Latino (H/L) children (ASR=3.50 vs 1.97/100,000 p<0.05). Projecting to larger populations using the European Standard Million and the World Standard Million and the 2000 US standard million the ASR was 3.22, 3.17 and 3.21/100,000, respectively.
Conclusion
The age standardized incidence rate (ASR) of orbital cellulitis is 3.00/100,000 in Colorado. Projecting to larger populations using the European Standard Million and the World Standard Million and the 2000 US standard million the ASR was 3.22, 3.17 and 3.21/100,000, respectively. Male sex, Black race, and age between 5-7 years are independent risk factors for orbital cellulitis, while Hispanic/Latino ethnicity is associated with significantly lower risk of orbital cellulitis.
Additional Authors
| First name | Last name | Base Hospital / Institution |
|---|---|---|
| Ryan | Summers | University of Colorado |
| Eric | Hink | University of Colorado |
