Ethnicity and hidradenitis suppurativa.
All encounters were searched, and there were 366 patients identified with the clinical diagnosis of HS seen in the Dermatology Clinic at the Henry Ford Medical Center during this time period. Given that overall there were 8,480 patients seen in the clinic during this time, HS patients comprised 4.3% of the dermatology clinic patient population. For 6,664 of these patients, including all 366 of the patients with the diagnosis of HS, there were data available regarding race. In addition, the US Census Bureau data for Wayne County, Michigan, in 2010 (http://quickfacts.census.gov/qfd/states/26/26163lk.html, accessed 21 May 2013) indicate that the population of Wayne County was 54.2% white and 41.8% black. For the HS patients, 54.4% (199) were black, 25.7% (94) were white, and the remaining 19.9% (73) were classified as “other.” Looking at the overall population of patients seen in the Henry Ford Dermatology Clinic for all diagnoses, 47.0% (3,131) were black, 35.8% (2,389) were white, and 17.2% (1,144) fell into the category of “other.” We found that 6.4% of the black patients as compared with 3.9% of the white patients seen in the clinic were seen for the diagnosis of HS (P-value of<0.001), using a chi-square test, SAS9.2 (SAS, Cary, NC) (Table 1). We feel our data support the traditional teaching that HS is more common in those of African descent, which is not currently substantiated in the medical literature.
|All non-HS patients||2,295 (96.1%)||2,932 (93.6%)||1,071 (93.6%)||<0.001|
|HS patients||94 (3.9%)||199 (6.4%)||73 (6.4%)|
- McMichael, A., Guzman-Sanchez, D., and Kelly, P. Folliculitis and other follicular disorders. in: J.L. Bolognia, J.L. Jorizzo, R.P. Rapini (Eds.) Dermatology. Mosby Elsevier, Spain; 2008: 528
- Vazquez, B.G., Alikhan, A., Weaver, A.L. et al. Incidence of hidradenitis suppurativa and associated factors: a population-based study of Olmsted County, Minnesota. J Invest Dermatol. 2013; 133: 97–103
FULL TEXT SOURCE: jidonline.org
- PMID: 24820891
- DOI: 10.1038/jid.2014.220