Abstract
Although several single-center studies have estimated that granuloma annulare may account for approximately 0.1% to 0.4% of new patients presenting to dermatologists, large-scale population-based studies estimating the prevalence and incidence of granuloma annulare are lacking. To estimate the population-based incidence and prevalence of granuloma annulare in the United States and to identify the most commonly prescribed treatments. This cross-sectional study used deidentified data from the Optum Clinformatics Data Mart Database from January 1, 2017, to December 31, 2018, to identify patients with granuloma annulare. After validating an approach to classify patients with granuloma annulare using International Statistical Classification of Diseases and Related Health Problems, Tenth Revision codes, the primary outcomes were age-, sex-, and race/ethnicity-specific annualized incidence and prevalence estimates for granuloma annulare. In addition, treatment use within 6 to 12 months after the first diagnosis of granuloma annulare was examined. Confidence intervals for prevalence and incidence estimates were computed assuming a binomial distribution using the Wilson score method. Age-, sex-, and race/ethnicity-specific incidence and...Continue Reading
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