Abstract
BACKGROUND: Atopic dermatitis is considered a childhood illness, and the direct and indirect health care burden of atopic dermatitis in adults is not fully understood. OBJECTIVE: To measure the direct and indirect costs of atopic dermatitis among adults in 2018. METHODS: This retrospective cohort study compared commercial and Medicare-insured adults with atopic dermatitis in 2018 with directly matched (1:3) adults without atopic dermatitis. Atopic dermatitis prevalence was reported. Health care utilization, direct health care costs, and work loss data were compared between cohorts. This analysis was repeated for adults with atopic dermatitis in 2016 and 2017. RESULTS: 31,164 adults with atopic dermatitis in 2018 were identified and directly matched (1:3) to controls. Adults with atopic dermatitis had greater utilization of outpatient services, outpatient pharmacy services, and short-term disability benefits than controls. Unadjusted annual health care costs in 2018 were $4,979 higher for adults with atopic dermatitis ($14,603) than for the matched controls ($9,624), driven by outpatient services and pharmacy. Findings were supported by analyses of adults from 2016 and 2017 and multivariable analyses. One limitation of this study was that patients with mild cases of atopic dermatitis may not seek medical treatment and may be underrepresented in the study cohort. CONCLUSIONS: The direct health care and indirect (short-term disability) health care costs of atopic dermatitis present a significant health care burden among the adult population. DISCLOSURES: This study was funded by Eli Lilly and Company. Employees of Eli Lilly were involved in the planning, execution, and interpretation of the study. Pierce is employed by Eli Lilly and Company. Boytsov and Goldblum were employed by Eli Lilly and Company Health at the time this research was conducted. Manjelievskaia and Brouillette are employed by IBM Watson Health, which received funding from Eli Lilly and Company to conduct this study. Bonafede and Onyekwere were employed at IBM Watson Health at the time this research was conducted.
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