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Cornea:
doi: 10.1097/ICO.0b013e31829e3c80
Clinical Science

Epidemiology of Ocular Surface Squamous Neoplasia in a Veterans Affairs Population

McClellan, Andrew J. MD*,†; McClellan, Allison L. OD*; Pezon, Candido F. BS*; Karp, Carol L. MD; Feuer, William MS; Galor, Anat MD, MSPH*,†

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Abstract

Purpose:

To evaluate the epidemiology of ocular surface squamous neoplasia (OSSN) and its associated risk factors in a South Florida Veterans Affairs Hospital population.

Methods:

Retrospective case–control study. Twenty-eight confirmed cases of OSSN from 24,179 veterans who received care at the Miami Veterans Affairs Healthcare System and affiliated satellite eye clinics between March 1, 2007, and March 1, 2012. Data extracted from the veterans administration database that comprised demographic information and medical diagnosis information [based on International Classification of Disease (ICD-9) codes]. The main outcome measures were the period prevalence of OSSN and identification of factors associated with the presence of disease.

Results:

The period prevalence of OSSN in our population was 0.1%. The risk factors studied included UV-related dermatologic diseases (melanoma, squamous and basal cell cancer, and actinic keratosis), UV-related ocular conditions (pterygium), HIV seropositivity, human papilloma virus–related diseases, and tobacco use. The presence of skin malignancy (squamous cell carcinoma and/or basal cell carcinoma) and pterygium was found to be significantly associated with the presence of OSSN [odds ratio, 4.40; 95% confidence interval, 2.03–9.55; P < 0.0005 and odds ratio, 16.2; 95% confidence interval, 7.11–36.9; P < 0.0005, respectively].

Conclusions:

The presence of neoplasias and ocular conditions related to sun exposure was the most important risk factor for the occurrence of OSSN in a South Florida Veterans Affairs Healthcare System population consistent with previous epidemiological reports worldwide.

Copyright © 2013 by Lippincott Williams & Wilkins

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