Community-based study of acne vulgaris in adolescents in Singapore

Background There are few studies on the prevalence of acne vulgaris among Asian teenagers. Objectives To determine the epidemiology of acne in teenagers in Singapore. Methods A community- based cross- sectional study in 1045 adolescents aged 13 19 years. Results Of these respondents, 88% identified themselves as having acne. Eight hundred and six of these respondents were examined by a dermatologist, and 51 4% were classified as having mild acne, 40% moderate acne and 8 6% severe acne. Isolation of Propionibacterium acnes was attempted in 262 subjects. Cultures were positive in 174 subjects, giving an isolation rate of 66 4%. Antibiotic- resistant strains of P. acnes were detected in 26 isolates ( 14 9%). Eleven of these 26 subjects ( 42%) had previously been treated or were presently on antibiotic treatment for acne, but the other 58% of students who had antibiotic- resistant strains of P. acnes did not give a history of prior antibiotic therapy. Teenagers expressed psychological distress over acne, and believed that hormonal factors, diet and hygiene were important factors in causing acne. Conclusions There is a need for accessible, accurate education on acne and its appropriate treatment.