Clinical analysis of patch test results using the Japanese standard allergen series (2008) at Kyushu university hospital

We analyzed patch test results of the Japanese standard allergen series (2008) performed in our department between April 2009 and March 2013. Among 235 cases (male: 42, female: 193), most of the men were in their 30s and 60s, and most of the women were in their 60s. As for primary diseases, contact dermatitis comprised 54%, followed by drug eruption, pustulosis palmaris et plantaris and metal allergy. Compared with the previously reported results by the Japanese Society for Dermatoallergology and Contact Dermatitis, a higher rate of drug eruption was noted among our cases. The positive rates for the top three allergens were 11.9% for potassium dichromate, 8.1% for mercuric chloride, and 7.2% for urushiol in the present study, whereas the top rates were 13.7% for nickel sulfate, 10.8% for urushiol and 7.6% for cobalt chloride in the Society report.