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- Bruze, M., et al.
(författare)
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Validation of a questionnaire algorithm based on repeated open application testing with the constituents of fragrance mix I
- 2020
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Ingår i: British Journal of Dermatology. - : Oxford University Press (OUP). - 0007-0963 .- 1365-2133. ; 182:4, s. 955-964
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Tidskriftsartikel (refereegranskat)abstract
- Background: In a European study on contact allergy in the general population, it was hypothesized that the combination of contact allergy to a fragrance together with a history indicating dermatitis at exposure, and thereafter subsequent avoidance of scented products, implied a diagnosis of allergic contact dermatitis. Objectives: The primary aim of this study was to validate this hypothesis and algorithm. The secondary aim was to investigate whether there was any association between the outcome of the repeated open application test (ROAT) and the patch test reactivity. Methods: In total, 109 patients with and without contact allergy to fragrance mix (FM) I were recruited. Volunteers from six European dermatology clinics participated in the study including a patch test and a ROAT. Results: Positive ROAT reactions were noted in 26 of the 44 volunteers with contact allergy to FM I. None of the volunteers reacted to the vehicle (P < 0·001). More individuals with a positive algorithm had positive ROATs than those with a negative algorithm. However, the difference was not statistically significant. The lower the patch test concentration eliciting a positive test reaction, the more likely a positive ROAT and the more likely that the positive ROAT appeared early during the investigative period. Conclusions: The algorithm used in this study was not substantiated in this ROAT set-up. The stronger the patch test reactivity the more likely was a positive ROAT and the more likely it was that the positive ROAT appeared early during the application period. What's already known about this topic?. To the best of our knowledge, a scientifically designed and conducted repeated open application test (ROAT) has never been performed before to validate a diagnosis of allergic contact dermatitis partly based on a questionnaire. What does this study add?. This is the largest controlled, randomized and blinded ROAT performed to date. Higher patch test reactivity to fragrance mix I indicated a greater likelihood of a positive ROAT. What are the clinical implications of this work?. Further refinement of the questions is required in order to diagnose allergic contact dermatitis from fragrances based on a questionnaire.
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| 3. |
- Bruze, M., et al.
(författare)
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Validation of questionnaire algorithm based on repeated open application testing with the constituents of fragrance mix II : the EDEN Fragrance Study
- 2021
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Ingår i: Journal of the European Academy of Dermatology and Venereology. - : Wiley. - 0926-9959 .- 1468-3083. ; 35:8, s. 1692-1701
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Tidskriftsartikel (refereegranskat)abstract
- Background: In a European study on contact allergy in the general population, it has been hypothesized that the combination of contact allergy to a fragrance together with a history indicating dermatitis at exposure and thereafter subsequent avoidance of scented products implied a diagnosis of allergic contact dermatitis. Objectives: The primary aim of this study was to validate this hypothesis/algorithm. The secondary aim was to investigate whether there was any association between the outcome of the recent repeated open application test (ROAT) and the patch test reactivity. Methods: One hundred nine subjects with and without contact allergy to fragrance mix II (FM II) were recruited. Volunteers from six European dermatology clinics participated in the study including a patch test and a ROAT. Results: Twenty-four positive ROAT reactions were noted in total including 20 of those 32 with contact allergy to FM II. None of the volunteers reacted to the vehicle (P < 0.001). More individuals with a positive algorithm had positive ROATs when compared with those with a negative algorithm. However, the difference was not statistically significant (P = 0.12). The lower the patch test concentration eliciting a positive test reaction, the more likely was a positive ROAT and the more likely that the positive ROAT appeared early during the investigative period. Conclusions: The algorithm used in this study was not validated but it was indicated in this ROAT setup. The stronger the patch test reactivity the more likely was a positive ROAT and the more likely it was that the positive ROAT appeared early during the application period.
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| 6. |
- Ofenloch, R, et al.
(författare)
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Colophony as marker for fragrance allergy in the general European population.
- 2015
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Ingår i: British Journal of Dermatology. - : Oxford University Press (OUP). - 1365-2133 .- 0007-0963.
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Colophony is not used as a fragrance ingredient. However, colophony is a well-established marker of fragrance contact allergy(2-4) . Colophony was therefore included as a fragrance allergy marker in our recent paper in BJD on contact allergy in the general population (prevalence 1.0%; 95%-CI 0.6%-1.3%)(5) . When including colophony as a fragrance marker in the article on fragrance contact allergy(1) together with fragrance mix I (FM I) in the True test containing an evernia prunastri (oak moss) with a high content of atranol and chloratranol or fragrance mix II (FM II) or any of the individual materials in either FM I or FM II or Myroxylon pereirae (MP) or sesquiterpene lactones, some information in table 5 of this article(1) change slightly according to the numbers given here: This article is protected by copyright. All rights reserved.
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| 7. |
- Svensson, A., et al.
(författare)
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Prevalence of skin disease in a population-based sample of adults from five European countries
- 2018
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Ingår i: British Journal of Dermatology. - : Oxford University Press (OUP). - 0007-0963. ; 178:5, s. 1111-1118
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Tidskriftsartikel (refereegranskat)abstract
- Background: There is a lack of prevalence data on skin diseases in the general adult population; most studies have been carried out in small, national or consecutive clinical samples. Objectives: To determine the prevalence of common skin disease in the general European population and to assess differences in the characteristics of treatment between countries. Methods: A random sample consisting of 12 377 participants aged 18-74 years was drawn from the general population of five European countries (Germany, Italy, the Netherlands, Portugal and Sweden). This was a cross-sectional study and all participants were interviewed using a standardized questionnaire that assessed the occurrence of 10 common skin diseases during lifetime, past year and past month. If a skin disease was reported, we additionally assessed who performed the diagnosis and treatment, and whether drugs had been prescribed. Results: The most common skin disease was warts (41·3%), followed by acne (19·2%) and contact dermatitis (15·0%). In general, women were more often affected by skin diseases compared with men; only skin cancer had a slightly higher prevalence in men. The prevalence of skin diseases in northern countries (Germany, the Netherlands and Sweden) was generally higher than in the southern countries (Italy and Portugal). In the Netherlands the treatment of skin diseases was less often performed by a dermatologist compared with the other countries. Conclusions: The prevalence estimates reported in this study are derived from a representative sample of the general population. Data assessment was performed comprehensively across countries, thus country-specific prevalence estimates are comparable.
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