European Surveillance System on Contact Allergies (ESSCA): polysensitization, 2009-2014

ESSCA Network

Research output: Contribution to journalArticleAcademicpeer-review

9 Citations (Scopus)

Abstract

Background. Polysensitization, defined as being allergic to three or more haptens from the European baseline series, is considered to reflect increased susceptibility to developing a contact allergy, and is likely to be associated with an impaired quality of life.

Objectives. To evaluate the prevalences of polysensitization across Europe and to analyse factors associated with polysensitization.

Methods. Patch test data collected by the European Surveillance System on Contact Allergies (ESSCA; www.essca-dc.org) in consecutively patch tested patients from January 2009 to December 2014, comprising 11 countries and 57 departments, were retrospectively analysed.

Results. A total of 86 416 patients were available for analysis, showing a standardized prevalence of polysensitization of 7.02%, ranging from 12.7% (Austria) to 4.6% (Italy). Allergen pairs with the strongest association are reported for the total population, for South Europe, and for North/Central Europe. Overall, polysensitized patients showed a higher percentage of extreme (+++) positive patch test reactions than oligosensitized patients. Female sex, occupational dermatitis and age > 40 years were risk factors for polysensitization.

Conclusions. The varying prevalences of polysensitization across Europe most likely reflect differences in patient characteristics and referral patterns between departments. Knownrisk factors for polysensitization are confirmed in a European dermatitis population.

Original languageEnglish
Pages (from-to)373-385
Number of pages13
JournalCONTACT DERMATITIS
Volume78
Issue number6
DOIs
Publication statusPublished - Jun-2018

Keywords

  • clinical epidemiology
  • contact allergy
  • patch test
  • polysensitization
  • BASE-LINE SERIES
  • PATCH-TEST REACTIONS
  • DERMATITIS-RESEARCH-GROUP
  • ANGRY BACK SYNDROME
  • QUALITY-OF-LIFE
  • INFORMATION-NETWORK
  • P-PHENYLENEDIAMINE
  • DERMATOLOGY IVDK
  • GENETIC-FACTORS
  • SUSCEPTIBILITY

Cite this