Journal Article
Research Support, Non-U.S. Gov't
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Severity strata for POEM, PO-SCORAD, and DLQI in US adults with atopic dermatitis.

BACKGROUND: Patient-Oriented Eczema Measure (POEM) is the preferred patient-reported outcome (PRO) for assessing symptoms of atopic dermatitis (AD). Dermatology Life Quality Index (DLQI) is commonly used to assess the burden of skin disease. Previous severity strata were developed for POEM and DLQI in clinical cohorts, which may be biased toward more severe disease. Severity strata were not previously examined in population-based cohorts. Patient-Oriented Scoring AD (PO-SCORAD) is another commonly used PRO for assessing AD symptoms; however, severity strata are not established.

OBJECTIVE: We sought to confirm previously developed strata for POEM and DLQI, and to develop strata for the PO-SCORAD in a population-based cohort of adults with AD.

METHODS: A cross-sectional, population-based study of 8,217 adults was performed using a structured questionnaire. A diagnosis of AD was determined using modified UK Diagnostic Criteria for AD (n = 602). AD severity was assessed using self-reported global AD severity (anchoring question), POEM, PO-SCORAD, and DLQI. Strata were selected using an anchoring approach based on patient-reported disease severity.

RESULTS: We confirmed the existing strata for DLQI (mild = 0-5, moderate = 6-10, severe = 11-30) (kappa = 0.446). However, the preferred strata for POEM was mild = 0-7, moderate = 8-19, and severe = 20-28 (kappa = 0.409) and PO-SCORAD was mild = 1-27, moderate = 28-56, severe = 57-104 (kappa = 0.444).

CONCLUSION: Existing strata for DLQI performed well in a population-based cohort of adult AD. The optimal severity strata for the POEM in our AD population varies slightly from those previously published for AD. This may suggest that different strata may be optimal in different study settings and cohorts. Finally, we proposed new strata for PO-SCORAD in adult AD.

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