Incidence of IgA vasculitis in the adult Slovenian population

Br J Dermatol. 2014 Sep;171(3):524-7. doi: 10.1111/bjd.12946. Epub 2014 Aug 5.


Background: IgA vasculitis (IgAV) is assumed to be uncommon in adults.

Objectives: To determine the incidence rate of histologically proven IgAV in the adult Slovenian population.

Methods: A retrospective chart review of adult patients diagnosed with IgAV was performed at the departments of rheumatology, nephrology, infectious diseases and dermatovenereology at an integrated secondary/tertiary university teaching hospital. In order to avoid missing miscoded cases, the Institute of Pathology, University of Ljubljana, Slovenia, provided a list of all patients with an IgAV-compatible histological pattern on biopsy. The annual incidence rate of histologically proven IgAV was calculated.

Results: Eighty-one new cases of IgAV were identified from June 2010 to June 2013. The estimated annual incidence rate of IgAV was 5·1 per 100,000 adults [95% confidence interval (CI) 3·4-7·4]; in men it was 6·1 per 100,000 (95% CI 3·9-10·6) and in women it was 3·7 per 100,000 (95% CI 1·8-6·8).

Conclusions: Although we only included histologically proven cases of IgAV, the annual incidence rate of 5·1 per 100,000 adults is 3-6-times higher than previously reported.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Age Distribution
  • Aged
  • Aged, 80 and over
  • Female
  • Humans
  • Immunoglobulin A*
  • Incidence
  • Male
  • Middle Aged
  • Retrospective Studies
  • Sex Distribution
  • Slovenia / epidemiology
  • Vasculitis / epidemiology*
  • Young Adult


  • Immunoglobulin A