Incidence and Prevalence of Psoriasis in Denmark

Acta Derm Venereol. 2017 Jul 6;97(7):808-812. doi: 10.2340/00015555-2672.

Abstract

The incidence and temporal trends of psoriasis in Denmark between 2003 and 2012 were examined. There was a female predominance ranging between 50.0% (2007) and 55.4% (2009), and the mean age at time of diagnosis was 47.7-58.7 years. A total of 126,055 patients with psoriasis (prevalence 2.2%) were identified. Incidence rates of psoriasis (per 100,000 person years) ranged from 107.5 in 2005 to a peak incidence of 199.5 in 2010. Incidence rates were higher for women, and patients aged 60-69 years, respectively. Use of systemic non-biologic agents, i.e. methotrexate, cyclosporine, retinoids, or psoralen plus ultraviolet A (PUVA) increased over the study course, and were used in 15.0% of all patients. Biologic agents (efalizumab, etanercept, infliximab, adalimumab, or ustekinumab) were utilized in 2.7% of patients. On a national level, incidence of psoriasis fluctuated during the 10-year study course. The relationship between psoriasis incidence and age appeared to be relatively linear, and disease prevalence was comparable to that in other European countries.

Publication types

  • Observational Study

MeSH terms

  • Adolescent
  • Adult
  • Age Distribution
  • Aged
  • Child
  • Child, Preschool
  • Denmark / epidemiology
  • Dermatologic Agents / therapeutic use
  • Female
  • Humans
  • Incidence
  • Infant
  • Infant, Newborn
  • Male
  • Middle Aged
  • PUVA Therapy
  • Prevalence
  • Psoriasis / diagnosis
  • Psoriasis / drug therapy
  • Psoriasis / epidemiology*
  • Sex Distribution
  • Time Factors
  • Young Adult

Substances

  • Dermatologic Agents