June 2015
Volume 56, Issue 7
Free
ARVO Annual Meeting Abstract  |   June 2015
Prevalence of ophthalmic diagnoses among hospital admissions in the Nationwide Inpatient Sample
Author Affiliations & Notes
  • Craig S Schallhorn
    School of Medicine, University of California, San Diego, La Jolla, CA
  • Frank M. Bishop
    Department of Ophthalmology, Naval Medical Center San Diego, San Diego, CA
  • Natalie A Afshari
    Shiley Eye Center, University of California, San Diego, La Jolla, CA
  • Footnotes
    Commercial Relationships Craig Schallhorn, None; Frank M. Bishop, None; Natalie Afshari, None
  • Footnotes
    Support None
Investigative Ophthalmology & Visual Science June 2015, Vol.56, 1388. doi:
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      Craig S Schallhorn, Frank M. Bishop, Natalie A Afshari; Prevalence of ophthalmic diagnoses among hospital admissions in the Nationwide Inpatient Sample. Invest. Ophthalmol. Vis. Sci. 2015;56(7 ):1388.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract
 
Purpose
 

To examine changes in prevalence of ophthalmic diagnoses among hospital admissions in a large administrative database

 
Methods
 

Retrospective analysis using the Nationwide Inpatient Sample for years 2000-2012. Inclusion criteria were ICD-9 diagnosis codes of ophthalmic disease. Primary outcome was annual change in prevalence of ophthalmic diagnoses during the study period. Patient demographic factors and comorbidities were included for analysis.

 
Results
 

A total of 1945312 hospital admissions with associated ophthalmic diagnoses were captured for analysis. The population was 45% male, median age 70 (54-82), 68% white, 97% insured. The majority of the study group presented ophthalmic diagnoses as comorbid conditions, not primary admission diagnoses. Most common ophthalmic diagnoses were glaucoma (0.87% of all admissions), diabetic retinopathy (0.44%), conjunctivitis (0.18%), cataract (0.14%), and orbital fracture (0.10%). An increasing prevalence of ophthalmic conditions over the study period was observed in 12/24 of diagnoses, including cataract, conjunctivitis, corneal abrasion, glaucoma, herpes simplex keratitis, herpes zoster ophthalmicus, keratitis, optic neuritis, orbital fracture, primary malignancy of eye, retrobulbar hemorrhage, and strabismus. A decreasing prevalence was observed in 6/24, including chorioretinitis, corneal ulcer, hyphema, open globe, retinal detachment, and vitreous hemorrhage. A stable trend was observed in 6/24, including angle closure glaucoma, diabetic retinopathy, endophthalmitis, ischemic optic neuropathy, orbital cellulitis, and uveitis. Most common primary admission diagnoses within the study group were pneumonia, heart failure, and coronary artery disease. Comorbid diagnoses frequent in the study were hypertension, diabetes mellitus, and hyperlipidemia.

 
Conclusions
 

Over the study period, half of ophthalmic diagnoses increased in prevalence among hospital admissions; the rest demonstrated stable or decreasing prevalence. The increasing prevalence of ophthalmic diagnoses observed may reflect an aging population with systemic disease at risk for hospital admission. Future study will delineate additional factors that influence prevalence, such as cost and treatment patterns. The main limitation of this study is that inpatient ophthalmic diagnoses were principally comorbid conditions, not primary admission diagnoses.  

 
Annual change in prevalence of ophthalmic diagnoses
 
Annual change in prevalence of ophthalmic diagnoses

 
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