Abstract
Background It is unknown which region of the U.S. offers the best and worst access to care for atopic dermatitis (AD). Methods We conducted a cross-sectional study using the Medical Expenditure Panel Survey (MEPS) from 1996 to 2015 to compare healthcare resource use and cost of AD among U.S. census regions. We conducted multivariable regression analyses adjusting for clinicodemographic factors to evaluate regional differences in healthcare resource use and cost per patient per year (PPPY) in terms of ambulatory visits, ED visits, and medications directly attributable to AD. Results An estimated total of 6,348,578 (95% CI: 5,944,553–6,752,803) AD patients (weighted) were pooled. Compared to the remainder of the country, Midwest AD patients utilized the fewest ambulatory visits (0.55 versus 0.75 visits PPPY; p = .035). The proportion of patients with ≥1 ED visits was highest in the Midwest (7.1%), followed by the South (5.4%), Northeast (4.8%), and West (1.4%). Within the Midwest AD population, those with no ambulatory visits per year utilized nearly three times more ED visits when compared with those with one or more ambulatory visits per year (0.11 versus 0.04 visits PPPY; p = .019). Conclusion Our results suggest that Midwest AD patients have differential access to outpatient care, which may be resulting in higher ED usage.
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