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- Title
Concomitant contact allergies to formaldehyde, methylchloroisothiazolinone/methylisothiazolinone, methylisothiazolinone, and fragrance mixes I and II.
- Authors
Pontén, Ann; Bruze, Magnus; Engfeldt, Malin; Hauksson, Inese; Isaksson, Marléne
- Abstract
Background Contact allergies to the preservatives formaldehyde and methylchloroisothiazolinone ( MCI)/methylisothiazolinone ( MI) have been reported to appear together at a statistically significant level. Recently, revisions concerning the patch test preparations of MCI/ MI, MI and formaldehyde have been recommended for the European baseline series. Aim To investigate (i) the number of concomitant contact allergies to the preservatives, (ii) the number of concomitant contact allergies to the preservatives and the fragrance mixes (FM I and FM II) and (iii) gender differences. Methods Patients tested with the Swedish baseline series during the period 2012-2014 at the Department of Occupational and Environmental Dermatology in Malmö, Sweden were investigated. Results 2165 patients were patch tested with the baseline series (34% males and 66% females). Contact allergies to formaldehyde and MCI/ MI and/or MI were significantly associated ( p < 0.001). The associations between contact allergy to MCI/ MI and/or MI and FM I and/or FM II, and between formaldehyde and FM I and/or FM II as well as, were statistically significant ( p < 0.001). Conclusion Contact allergies to formaldehyde and MCI/ MI and/or MI are significantly associated, as well as contact allergies to these preservatives and fragrance allergy. Males and females do not differ significantly concerning contact allergy to fragrances.
- Subjects
ALLERGIES; FORMALDEHYDE; THIAZOLINES; ODORS; CHEMICAL preservatives
- Publication
Contact Dermatitis (01051873), 2016, Vol 75, Issue 5, p285
- ISSN
0105-1873
- Publication type
Article
- DOI
10.1111/cod.12598