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Retina

Several common autoimmune disorders linked with increased odds of AMD

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Although most autoimmune diseases do not affect the odds of developing AMD, several common autoimmune disorders, such as discoid lupus erythematosus, systemic lupus erythematosus (SLE), Sjogren’s syndrome, and Crohn’s disease, were associated with modestly increased odds of age-related macular degeneration (AMD), according to findings from a recent study. Further research is needed to validate and investigate the underlying mechanisms of these associations, noted the researchers.

Several studies have demonstrated that the pathogenic elements of AMD resemble those of autoimmune diseases, yet the association between AMD development and most autoimmune diseases is unknown. A case-control analysis of patients ages 55 and older with new-onset International Classification of Diseases (ICD) coding of dry, wet, or unspecified AMD between 2005 and 2019 in the Merative MarketScan Commercial and Medicare Databases was conducted. The diagnosis of an autoimmune disease was defined by an outpatient or inpatient claim with a relevant ICD code in the 12 months before the index visit. Conditional multivariable logistic regression, adjusted for AMD risk factors, was used to calculate odd ratios and 95% confidence intervals.

Researchers identified 415,027 cases with new-onset ICD coding for AMD matched with propensity scores to 414,853 controls. In total, 16.1% of cases and 15.9% of controls were diagnosed with any autoimmune disease. The diagnosis of any autoimmune disease did not affect the odds of new-onset ICD coding for AMD in multivariable regression. Discoid lupus erythematosus, SLE, giant cell arteritis, Sjogren’s syndrome, and Crohn’s disease increased the odds of a new-onset ICD coding for AMD.

Reference:
Moir J, Hyman MJ, Wang J, et al. Associations between autoimmune disease and the development of age-related macular degeneration. Invest Ophthalmol Vis Sci. 2023;64(15):45. doi:10.1167/iovs.64.15.45

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