Epidemiology

While prurigo nodularis (PN) can occur at any age, it is often seen in middle-aged patients in their fifth or sixth decade of life and in individuals with darker skin color. Women are affected more often than men.1 Individuals of African American origin are 3.4 times more likely to be affected by PN than their White counterparts.2 The condition is commonly associated with other skin hypersensitivity disorders such as atopic dermatitis.2 It also can be associated with other underlying medical conditions such as cancer, diabetes, chronic kidney disease, or HIV infection.3 Notably, PN may be predictive of advanced immunosuppression in patients with HIV.2

References
  1. Leis M, et al. Prurigo nodularis: review and emerging treatments. Skin Therapy Lett. 2021;26:5-8.
  2. Mullins TB, et al. Prurigo nodularis. StatPearls. Updated 9/12/22 (https://www.ncbi.nlm.nih.gov/books/NBK459204/). Accessed 6/13/23.
  3. National Organization for Rare Disorders (NORD). Prurigo nodularis. 2021. Updated 2/13/23 (https://rarediseases.org/rare-diseases/prurigo-nodularis/). Accessed 6/13/23.

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