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Patch testing with a textile dye mix in a baseline series in two countries
Kristina Ryberg1, An Goossens, Marléne Isaksson
1Department of Occupational and Environmental Dermatology, Skåne University Hospital, Lund University, Malmö, Sweden. Kristina.Morgardt-Ryberg@med.lu.se
Abstract:
Disperse dyes are the most common contact sensitizers among textile dyes. The main aim of this study was to investigate the outcome of patch testing with a textile dye mix 6.6%. A total of 2,049 patients from Sweden and 497 from Belgium were tested with the mix, consisting of Disperse (D) Blue 35, D Yellow 3, D Orange 1 and 3, D Red 1 and 17, 1.0% each, and D Blue 106 and D Blue 124, 0.3% each. Of the total number, 65 patients, 2.6%, tested positively to the mix, 4.2% of the Belgian patients and 2.1% of the Swedish patients. Patch testing with the mix 6.6% revealed significantly more patients with contact allergy compared with testing with a previous mix 3.2% (p < 0.01). Contact allergy to the mix was significantly more common in the Belgian than in the Swedish patients.
