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KMID : 0363220110490070572
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Korean Journal of Dermatology
2011 Volume.49 No. 7 p.572 ~ p.578
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Results of the Patch Test (T.R.U.E. Test) in Patients withAllergic Contact Dermatitis (2005~2010, Kangwon, Yeongseo Province)
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Sul Geun-Dong
Lee Sung-Yul
Kim Jae-Hong
Hong Han-Nah
Chun Jae-Sun
Ahn Sung-Ku
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Abstract
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Background: Since 2005, the commercial patch test panel, the TRUE-test, has been available. However, there have been no reports regarding the results of the TRUE-test compared with previously used Korean Standard Series in Korea.
Objective:This study aimed to evaluate the prevalence of the contact allergy, causative allergens, and source of
allergens in patients who were diagnosed with allergic contact dermatitis, and to compare the findings with
previously used Korean Standard Series.
Methods:We reviewed the results of the TRUE-test from 2005∼2010 in Wonju Christian Hospital. We
patch-tested 843 patients who were diagnosed with allergic contact dermatitis. The patch test reading was performed
on day 2 and days 3 or 4, according to the patients’ needs. Epidemiologic findings of patients and the results of
the patch tests were analyzed.
Results:A total of 843 patch-tested cases were compiled and analyzed. Of 843 patch-tested patients (male, 309;
female, 534), 65.8% had at least 1 positive reaction and 30.2% at least 2 positive reactions. The highest age
distribution was the 5th decade in females. The face, with the exception of the eyelids, ears, and lips, was the most
frequently affected site (comprising 50.3%). The highest sensitization rates were found with nickel (29.1%),
thiomersal (10.9%), and cobalt dichloride (9.7%). The lowest positivity included caine mix (0.7%),
mercaptobenzothiazole (1.2%), and quinolone mix (1.2%). Metal allergens displayed higher positive rates than any
other standard allergens. The overall prevalence was similar with a recent report in Korea.
Conclusion:There was no significant difference in the overall prevalence of the most sensitized allergen compared with the reports about previously used Korean standard series
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KEYWORD
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Allergic contact dermatitis, TRUE test
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