title: Patch testing with a textile dye mix in two concentrations - a multicentre study by the Swedish contact dermatitis research group.
abstract: Disperse dyes, which are used for colouring synthetic textile fibres, are well-known contact sensitisers. To investigate the outcome of patch-testing with a textile dye mix (TDM) at 7 dermatology clinics in Sweden, a TDM tested at 2 concentrations was included into the baseline series during one year. The mix consisted of Disperse (D) Blue 35, D Yellow 3, D Orange 1 and 3, D Red 1 and 17, all 1.0%, and D Blue 106 and D Blue 124, each 0.3% in the mix 6.6% and 1.0% each in the mix 8.0%. In 2,122 tested patients, contact allergy to the TDM at the concentration 8.0% was found in 2.8% and to the TDM at 6.6% in 2.5% of the patients. The contact allergy to the TDM could explain or contribute to the dermatitis in about 35% of the patients.
  
  
  CONCLUSIONS
  contact allergy to the TDM is common and inclusion into the Swedish baseline series should be considered.
authors.affiliation: Department of Dermatology, Uddevalla Hospital, SE-451 80 Uddevalla, Sweden. Kristina.Morgardt-Ryberg@med.lu.se.
authors.forename: Kristina
authors.initials: K
authors.lastname: Ryberg
authors.forename: Johanna
authors.initials: J
authors.lastname: Bråred-Christensson
authors.forename: Malin
authors.initials: M
authors.lastname: Engfeldt
authors.forename: Marléne
authors.initials: M
authors.lastname: Isaksson
authors.forename: Magnus
authors.initials: M
authors.lastname: Lindberg
authors.forename: Mihaly
authors.initials: M
authors.lastname: Matura
authors.forename: Berndt
authors.initials: B
authors.lastname: Stenberg
authors.forename: Cecilia
authors.initials: C
authors.lastname: Svedman
authors.forename: Magnus
authors.initials: M
authors.lastname: Bruze
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D003020:Clothing; D004396:Coloring Agents / Q000009:adverse effects*; D003877:Dermatitis, Contact / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010328:Patch Tests; D013548:Sweden; D055815:Young Adult
chemical_list: D004396:Coloring Agents