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. Known risk factors for polysensitization are confirmed in a European dermatitis population.
| Original language | English |
|---|---|
| Pages (from-to) | 373-385 |
| Number of pages | 13 |
| Journal | Contact Dermatitis |
| Volume | 78 |
| Issue number | 6 |
| Early online date | 22 Feb 2018 |
| DOIs | |
| Publication status | Published - Jun 2018 |
Keywords
- Journal article
- Clinical epidemiology
- Contact allergy
- Patch test
- Polysensitization
- contact allergy
- clinical epidemiology
- patch test
- polysensitization
- Prevalence
- Humans
- Middle Aged
- Patch Tests/statistics & numerical data
- Dermatitis, Allergic Contact/epidemiology
- Young Adult
- Europe/epidemiology
- Adult
- Retrospective Studies
- Allergens/immunology
- Dermatitis, Atopic/epidemiology
- Population Surveillance
ASJC Scopus subject areas
- Dermatology
- Immunology and Allergy
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