Résumé
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. .
Sujets)
Adolescent , Enfant , Femelle , Humains , Mâle , Acné juvénile/épidémiologie , Répartition par âge , Facteurs âges , Acné juvénile/diagnostic , Brésil/épidémiologie , Études transversales , Niveau d'instruction , Modèles logistiques , Prévalence , Facteurs de risque , Indice de gravité de la maladie , Répartition par sexe , Facteurs sexuelsRésumé
A biópsia de pele é a remoção de uma parte da pele com o objetivo de exame complementar, laboratorial utilizando um microscópio. As biópsias de pele são feitas para diagnosticar várias doenças.