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IMPORTANCE: Up to 50% of patients may have hidradenitis suppurativa (HS) onset between age 10 and 21 years. To our knowledge, little is known about how adolescents with HS utilize health care during their journey to receiving a diagnosis. OBJECTIVE: To assess the clinical characteristics and health care utilization patterns of pediatric vs adult patients with HS. DESIGN, SETTING, AND PARTICIPANTS: This retrospective cohort study included adult and pediatric patients with HS claims from the MarketScan medical claims database during the study period, January 1, 2012, to December 31, 2016. The data were analyzed between March 1 and March 31, 2021. EXPOSURES: Clinical characteristics and health care utilization patterns of pediatric vs adult patients with HS. MAIN OUTCOMES AND MEASURES: Health care utilization patterns were examined and included concurrent diagnoses, outpatient care by discipline, and emergency/urgent care and inpatient claims. RESULTS: This study included 8727 members, comprising 1094 pediatric (155 male [14.2%] and 939 female patients [85.8%]; mean [SD] age, 14.3 [2.47] years) and 7633 adult patients (1748 men [22.9%] and 5885 women [77.1%]; mean [SD] age, 37.2 [12.99] years). Pediatric patients were likely to see pediatricians, dermatologists, emergency department (ED) staff, and family physicians before diagnosis and commonly received diagnoses of folliculitis and comedones. Pediatric patients with HS had high rates of comorbid skin and general medical conditions, including acne vulgaris (558 [51.0%]), acne conglobata (503 [45.9%]), obesity (369 [33.7%]), and anxiety disorders (367 [33.6%]). A higher percentage of pediatric than adult patients had HS-specific claims for services rendered by emergency and urgent care physicians (35.6% vs 28.2%; P

Background: People with hidradenitis suppurativa (HS) are interested in dietary alterations to manage the condition. However, there are few data on the prevalence of this or the impact on HS activity. The objective of this study was to investigate the prevalence and impact of dietary alterations made by people with HS. Methods: A cross-sectional survey was sent to people with HS through multiple sources. Participants reported food alterations in the prior 6 months. ­Results: Overall, 242 complete surveys were included in this analysis; the mean age was 35.8 years, and most (87.5%) were women. The majority (75.8%, n = 182) altered at least one food from their diet. Within this group, 154 (84.6%) made changes to multiple food groups. The top 5 food groups that were altered were gluten (48.8%), dairy (44.2%), refined sugars (40.0%), tomatoes (36.7%), and alcohol (37.1%). Smoking was eliminated in 27.5% of participants. Some participants (30.9%) reported the change made the HS “much better.” Conclusions: Dietary alteration to manage HS was common among participants in this study. Some people reported improvement in HS activity, but some noted worsening. Additional research is needed to evaluate the efficacy of dietary alteration to manage HS and to better understand the underlying pathomechanisms.