{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T10:11:39Z","timestamp":1780395099833,"version":"3.54.1"},"reference-count":37,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2021,11,10]],"date-time":"2021-11-10T00:00:00Z","timestamp":1636502400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Contact Dermatitis"],"published-print":{"date-parts":[[2022,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Allergic contact dermatitis has considerable public health impact and causative haptens vary over time.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objectives<\/jats:title><jats:p>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.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Results and demographic information for patients tested with the Swedish baseline series in 2010 to 2017 were analysed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Data for 21\u2009663 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%), <jats:italic>Myroxylon pereirae<\/jats:italic> (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%). <jats:italic>Myroxylon pereirae<\/jats:italic> 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\u2009years.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Nickel remains the most common sensitizing agent, with reaction prevalence decreasing among females younger than 20\u2009years. 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.<\/jats:p><\/jats:sec>","DOI":"10.1111\/cod.13996","type":"journal-article","created":{"date-parts":[[2021,10,27]],"date-time":"2021-10-27T07:13:40Z","timestamp":1635318820000},"page":"175-188","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":37,"title":["Contact allergy to haptens in the Swedish baseline series: Results from the Swedish Patch Test Register (2010 to 2017)"],"prefix":"10.1111","volume":"86","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6799-6768","authenticated-orcid":false,"given":"Daniel","family":"Andernord","sequence":"first","affiliation":[{"name":"Department of Dermatology Central Hospital  Karlstad Sweden"},{"name":"Centre for Clinical Research and Education, Region V\u00e4rmland  Karlstad 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