Validation of Self-testing as a Method to Estimate the Prevalence of Nickel Allergy

Josefson, Anna (författare)

Svensson, Ake (författare)

Farm, Gunilla (författare)

Engfeldt, Malin (författare): Lund University,Lunds universitet,Yrkes- och miljödermatologi,Forskargrupper vid Lunds universitet,Occupational and Environmental Dermatology,Lund University Research Groups

Meding, Birgitta (författare)

(creator_code:org_t)

Medical Journals Sweden AB, 2011
2011
Engelska.
Ingår i: Acta Dermato-Venereologica. - : Medical Journals Sweden AB. - 1651-2057 .- 0001-5555. ; 91:5, s. 526-530

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Abstract Ämnesord

Stäng

The aim of this study was to investigate the validity of self-patch testing for nickel allergy, in order to determine a cost-effective method for surveillance of the prevalence of nickel allergy. Population-based study including patch testing is the most reliable method to study the prevalence of allergy, but it is expensive and has logistical problems. A total of 191 dermatology patients referred to patch testing were provided with a self-test package with written instructions. The self-test was applied on the arm by the patient, on the same day that the regular patch test was applied on the back. The patient evaluated the self-test before patch test reading at the clinic. Patch test at the dermatology clinic detected 46/191 (24%) nickel-positive individuals. The sensitivity of the self-test was 72% (95% confidence interval (Cl) 57-84), the specificity 91% (95% Cl 85-95), and the proportion of agreement 86% (95% CI 81-91). Thus, in the population studied, the validity of self-testing for nickel allergy was adequate.

Av författaren/redakt...: Josefson, Anna; Svensson, Ake; Farm, Gunilla; Engfeldt, Malin; Meding, Birgitta

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