Acne vulgaris: prevalence and clinical forms in adolescents from São Paulo, Brazil
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. .Key words
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