The prevalence of acne in the north of Portugal

J. M. Amado*, M. E. Matos, A. M. Abreu, L. Loureiro, J. Oliveira, A. Verde, A. Massa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


Background: Acne is a disease that affects almost all teenagers (60-90%), and it is the pathology exhibiting the highest morbidity in the 10-24 year-olds age group. There are no consistent data at national level by which we can evaluate the preponderance of this pathology in the Portuguese population. Objective: To estimate the prevalence of acne in teenage school students (10-12 year-olds). Study design: A study was carried out involving all 8 regions in the north of Portugal. One school per region was selected at random. Results: As expected, the figure we obtained for the prevalence of this pathology was high (82.4%) with males being the most affected. Nevertheless, only 44% of the affected treated their acne, although the face is the part of the body most affected. In the females high androgenization (which is manifested by the presence of hair on the upper lip and on the side of the face) doubles the median of the degree of acne registered. Regional asymmetry was found in relation to information about the disorder. The degrees of acne are higher in schools in the interior. In the more rural areas, the pharmacist still plays an important role in prescribing treatment. Conclusion: As a rule, individuals are correctly informed about acne, confirming that the search for treatment and awareness of its value are generally helping to gradually eliminate some of the stigmas from the past.

Original languageEnglish
Pages (from-to)1287-1295
Number of pages9
JournalJournal of the European Academy of Dermatology and Venereology
Issue number10
Publication statusPublished - 1 Nov 2006
Externally publishedYes


  • Acne
  • Dermatology
  • Epidemiology
  • Prevalence
  • Risk factors
  • Teenagers


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