Rosacea is most common in people with Fitzpatrick skin type I or II (skin that burns easily) but is increasingly diagnosed in Asian and Latin American populations, and people of African descent.[1]Gallo RL, Granstein RD, Kang S, et al. Standard classification and pathophysiology of rosacea: the 2017 update by the National Rosacea Society Expert Committee. J Am Acad Dermatol. 2018 Jan;78(1):148-55.
http://www.ncbi.nlm.nih.gov/pubmed/29089180?tool=bestpractice.com
[4]Al-Dabagh A, Davis SA, McMichael AJ, et al. Rosacea in skin of color: not a rare diagnosis. Dermatol Online J. 2014 Oct 15;20(10):13030/qt1mv9r0ss.
http://www.ncbi.nlm.nih.gov/pubmed/25526008?tool=bestpractice.com
[5]Alexis AF, Callender VD, Baldwin HE, et al. Global epidemiology and clinical spectrum of rosacea, highlighting skin of color: review and clinical practice experience. J Am Acad Dermatol. 2019 Jun;80(6):1722-9.e7.
https://www.jaad.org/article/S0190-9622(18)32576-3/fulltext
http://www.ncbi.nlm.nih.gov/pubmed/30240779?tool=bestpractice.com
Onset of rosacea occurs between 30 to 50 years of age.[6]Two AM, Wu W, Gallo RL, et al. Rosacea: part I. Introduction, categorization, histology, pathogenesis, and risk factors. J Am Acad Dermatol. 2015 May;72(5):749-58.
http://www.ncbi.nlm.nih.gov/pubmed/25890455?tool=bestpractice.com
Assessing the prevalence of rosacea is challenging due to variable clinical manifestations, other comorbid skin disorders with similar clinical features, and underdiagnosis.[5]Alexis AF, Callender VD, Baldwin HE, et al. Global epidemiology and clinical spectrum of rosacea, highlighting skin of color: review and clinical practice experience. J Am Acad Dermatol. 2019 Jun;80(6):1722-9.e7.
https://www.jaad.org/article/S0190-9622(18)32576-3/fulltext
http://www.ncbi.nlm.nih.gov/pubmed/30240779?tool=bestpractice.com
[7]Tan J, Schöfer H, Araviiskaia E, et al. Prevalence of rosacea in the general population of Germany and Russia - The RISE study. J Eur Acad Dermatol Venereol. 2016 Mar;30(3):428-34.
https://onlinelibrary.wiley.com/doi/10.1111/jdv.13556
http://www.ncbi.nlm.nih.gov/pubmed/26915718?tool=bestpractice.com
One meta-analysis of population-based studies from Europe, North America, Africa, Asia, and South America reported an estimated global prevalence of 5.46%.[8]Gether L, Overgaard LK, Egeberg A, et al. Incidence and prevalence of rosacea: a systematic review and meta-analysis. Br J Dermatol. 2018 Aug;179(2):282-9.
https://onlinelibrary.wiley.com/doi/10.1111/bjd.16481
http://www.ncbi.nlm.nih.gov/pubmed/29478264?tool=bestpractice.com
One multicenter cross-sectional study found rosacea prevalence of 12.3% in Germany and 5.0% in Russia.[7]Tan J, Schöfer H, Araviiskaia E, et al. Prevalence of rosacea in the general population of Germany and Russia - The RISE study. J Eur Acad Dermatol Venereol. 2016 Mar;30(3):428-34.
https://onlinelibrary.wiley.com/doi/10.1111/jdv.13556
http://www.ncbi.nlm.nih.gov/pubmed/26915718?tool=bestpractice.com
A UK research database study found an overall incidence of clinically diagnosed rosacea of 1.65 per 1000 person-years: 1.92 per 1000 person-years for women and 1.34 per 1000 person-years for men.[9]Spoendlin J, Voegel JJ, Jick SS, et al. A study on the epidemiology of rosacea in the U.K. Br J Dermatol. 2012 Sep;167(3):598-605.
http://www.ncbi.nlm.nih.gov/pubmed/22564022?tool=bestpractice.com
Studies that report discrete data by sex suggest a prevalence of 5.41% for women and 3.9% for men.[8]Gether L, Overgaard LK, Egeberg A, et al. Incidence and prevalence of rosacea: a systematic review and meta-analysis. Br J Dermatol. 2018 Aug;179(2):282-9.
https://onlinelibrary.wiley.com/doi/10.1111/bjd.16481
http://www.ncbi.nlm.nih.gov/pubmed/29478264?tool=bestpractice.com
However, men with rosacea are more likely to progress to advanced disease.[6]Two AM, Wu W, Gallo RL, et al. Rosacea: part I. Introduction, categorization, histology, pathogenesis, and risk factors. J Am Acad Dermatol. 2015 May;72(5):749-58.
http://www.ncbi.nlm.nih.gov/pubmed/25890455?tool=bestpractice.com
[8]Gether L, Overgaard LK, Egeberg A, et al. Incidence and prevalence of rosacea: a systematic review and meta-analysis. Br J Dermatol. 2018 Aug;179(2):282-9.
https://onlinelibrary.wiley.com/doi/10.1111/bjd.16481
http://www.ncbi.nlm.nih.gov/pubmed/29478264?tool=bestpractice.com
[9]Spoendlin J, Voegel JJ, Jick SS, et al. A study on the epidemiology of rosacea in the U.K. Br J Dermatol. 2012 Sep;167(3):598-605.
http://www.ncbi.nlm.nih.gov/pubmed/22564022?tool=bestpractice.com