A Garg1, V Papagermanos1, M Midura1, A Strunk1. 1. Department of Dermatology, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New Hyde Park, NY, U.S.A.
Abstract
BACKGROUND: The relationship between tobacco use and hidradenitis suppurativa (HS) is controversial. OBJECTIVES: To determine the incidence of HS among tobacco smokers. METHODS: Retrospective cohort analysis identifying incident HS cases among adult tobacco smokers and nonsmokers sampled from a demographically heterogeneous population-based sample of over 50 million unique patients across all census regions in the U.S.A. RESULTS: We identified 3 924 310 tobacco smokers, which included 7860 patients newly diagnosed with HS. Tobacco smokers diagnosed with HS were most commonly aged 18-39 years (3795 of 7860; 48·3%), women (5640 of 7860; 71·8%), white (5200 of 7860; 66·2%) and those with body mass index (BMI) ≥ 30 (5690 of 7860; 72·4%). Overall incidence of HS was 0·20% (7860 of 3 924 310) among tobacco smokers and 0·11% (8430 of 8 027 790) among nonsmokers (P < 0·001). Incidence was greatest among tobacco smokers who were aged 30-39 years (0·35%), women (0·28%), African Americans (0·46%) and those with BMI ≥ 30 (0·33%). The overall adjusted odds of developing HS was 1·90 (95% confidence interval 1·84-1·96) among tobacco smokers, compared with nonsmokers (P < 0·001). HS incidence among tobacco smokers remained increased within each demographic subgroup. CONCLUSIONS: Incidence of HS appears to be doubled among tobacco smokers. These findings may support evidence-based counselling efforts for the cessation of smoking in populations at risk for HS.
BACKGROUND: The relationship between tobacco use and hidradenitis suppurativa (HS) is controversial. OBJECTIVES: To determine the incidence of HS among tobacco smokers. METHODS: Retrospective cohort analysis identifying incident HS cases among adult tobacco smokers and nonsmokers sampled from a demographically heterogeneous population-based sample of over 50 million unique patients across all census regions in the U.S.A. RESULTS: We identified 3 924 310 tobacco smokers, which included 7860 patients newly diagnosed with HS. Tobacco smokers diagnosed with HS were most commonly aged 18-39 years (3795 of 7860; 48·3%), women (5640 of 7860; 71·8%), white (5200 of 7860; 66·2%) and those with body mass index (BMI) ≥ 30 (5690 of 7860; 72·4%). Overall incidence of HS was 0·20% (7860 of 3 924 310) among tobacco smokers and 0·11% (8430 of 8 027 790) among nonsmokers (P < 0·001). Incidence was greatest among tobacco smokers who were aged 30-39 years (0·35%), women (0·28%), African Americans (0·46%) and those with BMI ≥ 30 (0·33%). The overall adjusted odds of developing HS was 1·90 (95% confidence interval 1·84-1·96) among tobacco smokers, compared with nonsmokers (P < 0·001). HS incidence among tobacco smokers remained increased within each demographic subgroup. CONCLUSIONS: Incidence of HS appears to be doubled among tobacco smokers. These findings may support evidence-based counselling efforts for the cessation of smoking in populations at risk for HS.
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