{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,3]],"date-time":"2026-09-03T22:37:59Z","timestamp":1788475079903,"version":"build-2803163510"},"reference-count":34,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2024,8,21]],"date-time":"2024-08-21T00:00:00Z","timestamp":1724198400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Contact Dermatitis"],"published-print":{"date-parts":[[2024,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Photoallergic contact dermatitis (PACD) is a delayed hypersensitivity reaction to allergens only in the presence of ultraviolet radiation in sunlight. Photopatch testing (PhotoPT) is necessary to confirm the diagnosis of PACD. There are few published studies of PhotoPT in North America.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To summarise the results of patients photopatch tested by members of the North American Contact Dermatitis Group (NACDG), 2009\u20132020.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Retrospective analysis of patient characteristics and PhotoPT results to 32 allergens on the NACDG Photopatch Test Series.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Most of the 454 tested patients were female (70.3%), 21\u201360\u2009years old (66.7%) and White (66.7%). There were a total of 119 positive photopatch tests. Sunscreen agents comprised 88.2% of those, with benzophenones responsible for over half of them. Final diagnoses included PACD in 17.2%, allergic contact dermatitis (ACD) in 44.5%, polymorphous light eruption (PMLE) in 18.9% and chronic actinic dermatitis (CAD) in 9.0% of patients.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>In 454 patients with suspected photosensitivity referred for photopatch testing in North America, approximately one\u2010fifth had PACD. Sunscreen agents, especially benzophenones, were the most common photoallergens. Other common diagnoses included ACD, PMLE and CAD. Photopatch testing is an important tool for differentiating these conditions.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/cod.14677","type":"journal-article","created":{"date-parts":[[2024,8,21]],"date-time":"2024-08-21T23:33:27Z","timestamp":1724283207000},"page":"465-473","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Photopatch testing: Clinical characteristics, test results, and final diagnoses from the North American Contact Dermatitis Group, 2009\u20132020"],"prefix":"10.1111","volume":"91","author":[{"given":"Vincent A.","family":"DeLeo","sequence":"first","affiliation":[{"name":"Department of Dermatology, Keck School of Medicine University of Southern California  Los Angeles California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6522-1483","authenticated-orcid":false,"given":"Brandon L.","family":"Adler","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Keck School of Medicine University of Southern California  Los Angeles California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Donald V.","family":"Belsito","sequence":"additional","affiliation":[{"name":"Department of Dermatology Columbia University Irving Medical School  New York New York USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Melanie D.","family":"Pratt","sequence":"additional","affiliation":[{"name":"Division of Dermatology University of Ottawa  Ottawa Ontario Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9104-2342","authenticated-orcid":false,"given":"Denis","family":"Sasseville","sequence":"additional","affiliation":[{"name":"Division of Dermatology McGill University Health Centre  Montreal Qu\u00e9bec 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USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James S.","family":"Taylor","sequence":"additional","affiliation":[{"name":"Department of Dermatology Cleveland Clinic  Cleveland Ohio USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Frances","family":"Storrs","sequence":"additional","affiliation":[{"name":"Department of Dermatology Oregon Health Science University  Portland Oregon USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"suffix":"Jr","given":"James G.","family":"Marks","sequence":"additional","affiliation":[{"name":"Department of Dermatology Pennsylvania State University  Hershey Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9603-6494","authenticated-orcid":false,"given":"Joel G.","family":"DeKoven","sequence":"additional","affiliation":[{"name":"Division of Dermatology, Sunnybrook Health Sciences Centre University of Toronto  Toronto Ontario 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Dermatology, Centre Hospitalier Universitaire Qu\u00e9bec Laval University  Quebec City Qu\u00e9bec Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christen M.","family":"Mowad","sequence":"additional","affiliation":[{"name":"Division of Dermatology Geisinger Medical Center  Danville Pennsylvania USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cory A.","family":"Dunnick","sequence":"additional","affiliation":[{"name":"Department of Dermatology University of Colorado  Aurora Colorado USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,8,21]]},"reference":[{"issue":"1","key":"e_1_2_10_2_1","first-page":"5","article-title":"Patch\u2010testing practices of American contact dermatitis society members: a cross\u2010sectional survey","volume":"14","author":"Warshaw EM","year":"2003","journal-title":"Am J Contact 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