title: Prevalence and related factors of psoriasis and seborrheic dermatitis: a community-based study.
abstract: OBJECTIVE
  We aimed to determine the prevalence of psoriasis (PS) and seborrheic dermatitis (SD) (erythematous-squamous diseases) in our region and reveal the frequently encountered associated factors to aid in planning appropriate healthcare.
  
  
  METHODS
  A community-based study was conducted with 85 sample groups that reflected the population rate and demography of Tokat Province in northern Anatolia.
  
  
  RESULTS
  In this community, the prevalence of PS in people older than 20 years of age was 1.2% and the prevalence of SD was 5.2%. SD rates were higher in patients who used tobacco and especially alcohol. SD prevalence was also higher in patients treated for depression and epilepsy. Furthermore, as education levels increased, SD prevalence increased proportionally.
  
  
  CONCLUSIONS
  In general, PS prevalence in this region was higher than in Asia and Africa but lower than in Europe and the United States. Whereas SD prevalence varies between 2% and 12% throughout the world, the average SD prevalence was 5.2% in this study.
authors: Department of Dermatology, Faculty of Medicine, Gaziosmanpaşa University, Tokat, Turkey.
authors: Yalçın
authors: Y
authors: Baş
authors: Department of Dermatology, Faculty of Medicine, Gaziosmanpaşa University, Tokat, Turkey.
authors: Havva Yıldız
authors: HY
authors: Seçkin
authors: Department of Dermatology, Faculty of Medicine, Gaziosmanpaşa University, Tokat, Turkey.
authors: Göknur
authors: G
authors: Kalkan
authors: Department of Dermatology, Faculty of Medicine, Gaziosmanpaşa University, Tokat, Turkey.
authors: Zennure
authors: Z
authors: Takci
authors: Department of Public Health, Faculty of Medicine, Gaziosmanpaşa University, Tokat, Turkey.
authors: Rıza
authors: R
authors: Çitil
authors: Department of Public Health, Faculty of Medicine, Gaziosmanpaşa University, Tokat, Turkey.
authors: Yalçın
authors: Y
authors: Önder
authors: Department of Internal Medicine, Faculty of Medicine, Gaziosmanpaşa University, Tokat, Turkey.
authors: Şafak
authors: Ş
authors: Şahin
authors: Department of Internal Medicine, Faculty of Medicine, Gaziosmanpaşa University, Tokat, Turkey.
authors: Ayşe Kevser
authors: AK
authors: Demir
mesh_terms: D012628:Dermatitis, Seborrheic; D006801:Humans; D015995:Prevalence; D011565:Psoriasis
keywords: Prevalence; psoriasis; seborrheic dermatitis