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Andernord D, Bruze M, Bryngelsson IL, Bråred Christensson J, Glas B, Hagvall L, Isaksson M, Matura M, Nyman G, Stenberg B, Svedman C, Lindberg M. Contact allergy to haptens in the Swedish baseline series: Results from the Swedish Patch Test Register (2010 to 2017). Contact Dermatitis 2021; 86:175-188. [PMID: 34704261 DOI: 10.1111/cod.13996] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 12/28/2022]
Abstract
BACKGROUND Allergic contact dermatitis has considerable public health impact and causative haptens vary over time. OBJECTIVES To report the prevalence of contact allergy to allergens in the Swedish baseline series 2010 to 2017, as registered in the Swedish Patch Test Register. METHODS Results and demographic information for patients tested with the Swedish baseline series in 2010 to 2017 were analysed. RESULTS Data for 21 663 individuals (females 69%) were included. Females had significantly more positive patch tests (54% vs 40%). The reaction prevalence rates were highest for nickel sulfate (20.7%), fragrance mix I (7.1%), Myroxylon pereirae (6.9%), potassium dichromate (6.9%), cobalt chloride (6.8%), methylchloroisothiazolinone/methylisothiazolinone (MCI/MI; 6.4%), MI (3.7%), colophonium (3.5%), fragrance mix II (3.2%), and formaldehyde (3.2%). Myroxylon pereirae reaction prevalence increased from 5% in 2010 to 9% in 2017 and that for methyldibromo glutaronitrile from 3.1% to 4.6%. MCI/MI and MI reactions decreased in prevalence after 2014. Nickel reaction prevalence decreased among females aged 10 to 19 years. CONCLUSIONS Nickel remains the most common sensitizing agent, with reaction prevalence decreasing among females younger than 20 years. The changes in MCI/MI and MI reaction prevalence mirrored those in Europe. The register can reveal changes in contact allergy prevalence over time among patients patch tested in Sweden.
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Affiliation(s)
- Daniel Andernord
- Department of Dermatology, Central Hospital, Karlstad, Sweden.,Centre for Clinical Research and Education, Region Värmland, Karlstad, Sweden
| | - Magnus Bruze
- Department of Occupational and Environmental Dermatology, Skåne University Hospital, Lund University, Malmö, Sweden
| | - Ing-Liss Bryngelsson
- Department of Occupational and Environmental Medicine, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Johanna Bråred Christensson
- Department of Dermatology and Venereology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Dermatology and Venereology, Sahlgrenska University Hospital, Region Västra Götaland, Gothenburg, Sweden
| | - Bo Glas
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Lina Hagvall
- Department of Dermatology and Venereology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Dermatology and Venereology, Sahlgrenska University Hospital, Region Västra Götaland, Gothenburg, Sweden
| | - Marléne Isaksson
- Department of Occupational and Environmental Dermatology, Skåne University Hospital, Lund University, Malmö, Sweden
| | - Mihály Matura
- Department of Dermatology, Skaraborg Hospital Skövde, Skövde, Sweden
| | - Gunnar Nyman
- Department of Dermatology and Venereology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Dermatology and Venereology, Sahlgrenska University Hospital, Region Västra Götaland, Gothenburg, Sweden
| | - Berndt Stenberg
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Cecilia Svedman
- Department of Occupational and Environmental Dermatology, Skåne University Hospital, Lund University, Malmö, Sweden
| | - Magnus Lindberg
- Department of Dermatology, Örebro University Hospital and Department of Dermatology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
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