Background: The self-reported annual prevalence of hand eczema (HE) in adults is about 10%. Incidence and prevalence data for HE, chronic HE (CHE) and steroid-refractory CHE (SR-CHE) in physician-attended populations are lacking.
Objectives: To estimate the prevalences of HE, CHE and SR-CHE in a primary-care population using a cross-sectional design; and to estimate the incidence of each and describe initial therapy using a cohort approach.
Methods: The population was all patients in the Clinical Practice Research Datalink for 2000-10, 2005-10 and 2010-11. HE was defined as any of 12 diagnoses (six specific to the hand, six for contact dermatitis). HE became CHE if any of these 12, or three additional diagnoses, occurred 90-365 days after the first HE, and if the patient was prescribed at least one course of potent topical steroids. A patient with CHE was classified as having SR-CHE if they were (i) referred to a dermatologist and/or (ii) prescribed phototherapy, systemic immunomodulators, oral corticosteroids, alitretinoin or acitretin.
Results: The 1-year adult prevalence of HE was 0·4%. The period prevalences of SR-CHE for 1, 5 and 10 years in adults were 0·008%, 0·036% and 0·072%, respectively; lifetime estimates were 0·071%, 0·080%, 0·098%. About one-half of cases of CHE were steroid refractory. All conditions were more common in female than in male patients. One-third of HE diagnoses were specific for the hand, the remainder were for contact dermatitis. The majority (62%) of newly diagnosed patients with HE were not prescribed treatment in the 12 months after diagnosis.
Conclusions: Although the prevalence of HE could be 2-3 times higher than reported herein, the proportion of adults seeking medical care for HE is a fraction of those who self-report HE. SR-CHE is rare.
© 2016 British Association of Dermatologists.