Table 3.

Logistic regression analysis of risk factors for OSSN among the study population

	Odds ratiob	95% CI	P-value
Demographics
Decade of Age	1.00	0.82−1.22	0.92
Race (black v. white)	0.72	0.19−2.71	0.63
Ethnicity (H v. NH)	0.65	0.08–5.10	0.68
Tobacco usea	1.44	0.63–3.26	0.39
Combata	1.41	0.49–4.06	0.53
Diagnoses
Skin malignancy (BCC or SCC)a	4.40	2.03–9.55	<0.0005
Melanomaa	2.13	0.29–15.74	0.46
Any cancer	1.23	0.59–2.59	0.59
Diabetes mellitus	0.33	0.13–0.81	0.02
Actinic keratosisa	2.04	0.90–4.63	0.09
Atopic eczemaa	1.35	0.18–9.92	0.77
HIVa	2.11	0.50–8.91	0.31
HPVa	1.15	0.16–8.49	0.89
Pterygium	16.2	7.11–36.9	<0.0005

OSSN= ocular surface squamous neoplasia; H = Hispanic, NH = non-Hispanic, BCC = basal cell carcinoma, SCC = squamous cell carcinoma, HPV = human papilloma virus, HIV = human immunodeficiency virus, CI = confidence interval,

^aodds ratios presented as presence of risk factor versus absence of risk factor

^bUnivariable analysis