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Acne vulgaris: prevalence and clinical forms in adolescents from São Paulo, Brazil
Bagatin, Ediléia; Timpano, Denise Lourenço; Guadanhim, Lilia Ramos dos Santos; Nogueira, Vanessa Mussupapo Andraus; Terzian, Luiz Roberto; Steiner, Denise; Florez, Mercedes.
Affiliation
  • Bagatin, Ediléia; Universidade Federal de São Paulo. São Paulo. BR
  • Timpano, Denise Lourenço; Universidade Federal de São Paulo. São Paulo. BR
  • Guadanhim, Lilia Ramos dos Santos; Universidade Federal de São Paulo. São Paulo. BR
  • Nogueira, Vanessa Mussupapo Andraus; Universidade Federal de São Paulo. São Paulo. BR
  • Terzian, Luiz Roberto; Universidade Federal de São Paulo. São Paulo. BR
  • Steiner, Denise; Universidade Federal de São Paulo. São Paulo. BR
  • Florez, Mercedes; Universidade Federal de São Paulo. São Paulo. BR
An. bras. dermatol ; 89(3): 428-435, May-Jun/2014. tab, graf
Article in En | LILACS | ID: lil-711610
Responsible library: BR1.1
ABSTRACT

BACKGROUND:

Acne is a common disease in adolescents, but there are no epidemiological data for acne in Brazil.

OBJECTIVES:

To estimate the prevalence and degree of acne in adolescents from Sao Paulo and study socio-demographic factors, family history and lifestyle, associated with the disease.

METHODS:

Cross-sectional study with 452 adolescents aged between 10 and 17 (mean=13.3 years), students from elementary and high school, examined by 3 independent evaluators.

RESULTS:

62.4% were female, 85.8% white and 6.4% were aged 14. The prevalence was 96.0% and increased with age - all students over 14 had acne. The most prevalent form of acne was comedonal (61.1%), followed by mild (30.6%) and moderate (7.6%) papular-pustular, which affected mostly the face (97.5%). About half of the adolescents reported family history for acne in mother or father, and 20.6% reported previous treatment for acne. There was a higher chance of presenting non-comedonal acne with increased age (p<0.001).

DISCUSSION:

The prevalence of acne in adolescents varies widely due to the clinical features and diagnostic methods used. Adolescents whose brothers/sisters had acne (OR=1.7-p=0.027) and those over 13 (OR=8.3-p<0.001), were more likely to have non-comedonal acne.

CONCLUSION:

This study showed high prevalence of acne in adolescents from Sao Paulo, predominantly the comedonal form on the face, with a higher chance of presenting non-comedonal acne with increased age. .
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Full text: 1 Index: LILACS Main subject: Acne Vulgaris Type of study: Diagnostic_studies / Etiology_studies / Observational_studies / Prevalence_studies / Prognostic_studies / Risk_factors_studies Limits: Adolescent / Child / Female / Humans / Male Country/Region as subject: America do sul / Brasil Language: En Journal: An. bras. dermatol Journal subject: DERMATOLOGIA Year: 2014 Type: Article

Full text: 1 Index: LILACS Main subject: Acne Vulgaris Type of study: Diagnostic_studies / Etiology_studies / Observational_studies / Prevalence_studies / Prognostic_studies / Risk_factors_studies Limits: Adolescent / Child / Female / Humans / Male Country/Region as subject: America do sul / Brasil Language: En Journal: An. bras. dermatol Journal subject: DERMATOLOGIA Year: 2014 Type: Article