Association of Social Determinants of Health with the Likelihood of Treatment with Laser Trabeculoplasty in a United States Database.

Precis: Among 1,861 adults with ocular hypertension or mild or moderate primary open-angle glaucoma, those with Medicaid or no insurance had a statistically significantly lower likelihood of receiving laser trabeculoplasty compared with those with other insurance.
Purpose: To determine whether social determinants of health are associated with undergoing treatment with laser trabeculoplasty (LTP) among individuals with ocular hypertension (OHT) or mild or moderate primary open angle glaucoma (POAG).
Methods: In this cross-sectional study, we included patients with OHT or mild or moderate POAG from the National Institutes of Health All of Us Research Program, a diverse US nationwide dataset. Logistic regression was performed to study the association between LTP treatment status and seven covariates (diagnosis severity, age, gender, race/ethnicity, income, insurance status, and education).
Results: 1,861 subjects were included (median age of 72 y). In univariable logistic regression, diagnosis severity, older age, higher income, and insurance (non-Medicaid) were associated with LTP treatment. On multivariable logistic regression models, those with mild POAG (OR, 3.49; 95% CI [2.12-5.87]) and moderate POAG (OR, 7.15 [4.49-11.8]) were still more likely than OHT patients to have received LTP. Moreover, compared with participants with Medicaid or no insurance, participants with other insurance (e.g. employer provided, Medicare) were still more likely to have received LTP (OR, 2.24 [1.08-5.29]). There was no significant difference in the LTP treatment likelihood based on race/ethnicity.
Conclusions: After controlling for confounders, the likelihood of receiving LTP appears to be driven primarily by insurance rather than income or race/ethnicity. Potential reasons for decreased utilization of LTP among Medicaid patients include higher rates of declining the procedure, or LTP may have been offered less frequently due to Medicaid's lower levels of reimbursement and longer reimbursement delays.
Competing Interests: Conflicts of Interest: BH: None. APT: Alcon (Consultant); Apotex (Consultant), Ivantis (Consultant); Sandoz (Consultant), Zeiss (Consultant)
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