Retrospective evalaluation for patch test results between 1998-2007 years in Duzce Univercity

Background-Objective: In this study the patch test results of the patients with allergic contact dermatitis have been investigated and regional results were compared with that of the literature. In this study results of 243 patients were examined retrospectively. European Standard Patch Series allergens and also allergens suspected by the patients were used.Material-Method: Chi-Square test was used to evaluate the results statistically. The parameters about the ratio were determined as ratio+SD. The parametres about order and category were determined as percent and number in this study. All of the analysis were made in security (%95 trustable) and SPSS 15.0 for Windows was used for this analysis. p?0.05 was considered statistically siginificant.Results: In 79 ( 32.5 %) patients out of 243 positive reactions were observed.The most common allergen was nickel sulfate in 36 (45.6 %) patients. 2. were the added allergens in 9 (11.4 %) patients. 3.was potassium dichromate in 8 (10.2 %) patients. Formaldehyde and fragrance mix in 6 (7.6 %), wool alcohols and colophony in 3 (3.8 %) were followed by cobalt chloride in 3 (3.8 %) patients.Conclusion: The patch test is essential to patients with suspected allergic contact dermatitis. According to regional properties new allergens must be added to European Standard Patch Series.