NEW RESEARCH FINDS NEARLY 1 IN 5 ADULT ECZEMA PATIENTS HAVE MULTIPLE ECZEMA CONDITIONS

National Eczema Association has published findings in the Journal of Investigative Dermatology.

NOVATO, Calif., March 20, 2025 /PRNewswire/ -- The National Eczema Association (NEA) today announced the publication of its research letter, "Prevalence and Co-Occurrence of Eczema Types in U.S. Adults: Insights from the All of Us Research Program," which establishes the prevalence of multiple eczema diagnoses among adults in the U.S. The letter was published in the Journal of Investigative Dermatology (JID) in March 17, 2025.

Over 10% of people in the U.S. have some form of eczema, which include atopic dermatitis, the most prevalent form, as well as contact dermatitis, chronic hand eczema, dyshidrotic eczema, nummular eczema, atopic neurodermatitis, stasis dermatitis and seborrheic dermatitis.

In previous studies of its patient community, NEA noted frequent reports of more than one eczema type. However, this finding was not well-documented in the literature.

In this new study, the NEA research team aimed to evaluate the prevalence and co-occurrence of different forms of eczema using the large data set of the All of Us national patient database. The All of Us Research Program is supported by the National Institutes of Health (NIH) and includes electronic health records, questionnaires and bio-specimens for a diverse U.S. cohort.

"Understanding the co-occurrence of eczema types is critical to mitigating patient burden and optimizing comprehensive treatment strategies," said Allison R. Loiselle, co-author of the study and associate director, data science & research at NEA. "Our findings underscore the need for real-world evidence of treatment effectiveness, especially when multiple skin conditions coexist."

This research looked at how often people with eczema have more than one type of eczema at the same time (co-prevalence) and to understand how different forms of eczema overlap.

Among the key findings, the study highlighted that nearly 1 in 5 adult eczema patients may have multiple eczema conditions. Of those with more than one type of eczema, the most common co- occurring types were: atopic dermatitis and seborrheic dermatitis (25.9%); allergic contact dermatitis and seborrheic dermatitis (15.3%); and atopic dermatitis and allergic contact dermatitis (13.8%).

The research letter suggests that future research prioritize understanding the effectiveness of treatments for patients with multiple skin conditions to improve personalized care and management strategies for eczema.

For more information about this study and other research conducted by NEA, visit NationalEczema.org/surveys. 

About the National Eczema Association
Founded in 1988, the National Eczema Association (NEA) is a 501(c)(3) nonprofit and the largest patient advocacy organization serving the over 31 million Americans who live with eczema and those who care for them. NEA provides programs and resources to elevate the diverse lived experience of eczema, and help patients and caregivers understand their disease, actively engage in their care, find strength in one another – and improve their lives. Additionally, NEA advances critical eczema research and partners with key stakeholders to ensure the patient voice is represented and valued in education, care and treatment decision-making. The eczema community is at an exciting juncture, with increased recognition of the seriousness and burden of eczema and a surge in scientific interest and development of new treatments. Bolstered by NEA's strategic plan, Blueprint 2025, we are driving toward the ultimate vision: a world without eczema. Learn more at NationalEczema.org.

SOURCE National Eczema Association