title: An epidemiological study of acne in female adults: results of a survey conducted in France.
abstract: BACKGROUND
  Acne is usually perceived as a disease of teenagers, and most epidemiological studies have focused on adolescents.
  
  
  OBJECTIVE
  The primary objective was to investigate the prevalence of acne in a representative sample of French females. Information about skin type, life-style factors influencing acne and quality of life were also recorded.
  
  
  METHODS
  A self-administered questionnaire was sent to 4,000 adult women aged 25-40 years, after a validation test by three dermatologists. A definition of acne severity, according to questionnaire answers, was established before the questionnaire was sent out.
  
  
  RESULTS
  A total of 3394 women completed the questionnaire of which 3,305 were useable. The data showed a prevalence of acne in 17% of the population, and physiological acne in 24%. Thus, the total acne prevalence was 41%. Forty-nine per cent of the acne patients had acne sequelae (scars and/or pigmented macules). Forty-one per cent of adult acne patients had not experienced acne during their adolescence. A premenstrual flare and stress was recorded as causing acne in 78% and 50%, respectively. Twenty-two per cent of acne subjects were currently receiving therapy. For most patients, acne did not severely impair their quality of life.
  
  
  CONCLUSIONS
  This study shows a prevalence of acne in 41% of women in the general population. A high proportion of these acne cases are late onset acne.
authors.affiliation: Hĵpital Henri Mondor, Service de Dermatologie, Creteil, France.
authors.forename: F
authors.initials: F
authors.lastname: Poli
authors.forename: B
authors.initials: B
authors.lastname: Dreno
authors.forename: M
authors.initials: M
authors.lastname: Verschoore
mesh_terms: D000152:Acne Vulgaris / Q000175:diagnosis* / Q000453:epidemiology*; D000328:Adult; D000367:Age Factors; D005260:Female; D005602:France / Q000453:epidemiology; D006306:Health Surveys; D006801:Humans; D015995:Prevalence; D011336:Probability; D011379:Prognosis; D012307:Risk Factors; D012494:Sampling Studies; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires