Between August 1989 and June 1992, a study on patch tests with European standard seies was performed on 118 patients with contact dermatitis.
The tapes employed were Finn Chamber on scanpor tapeR and placed with the antigen on the back of the patients for 48 hours and read at 30 minutes and 48 hours following removal of the attached patches, in accordance with in method
recommended
by the International Contact Dermatitis Reasearch Group(ICDRG).
@ES The results were as follows:
@EN 1. The MOHL index was as 33.9-26.2-22.9-0
2. Eighty(67.8%) were positive to the patch test. The positive incidence in male and female were 24(60.0%) and 56(71.8%), respectively.
3. The frequency of positive antigens in order were cobalt chloride(25.4%), potassium dichromate(21.2%), nickel Sulfacte(21.2%) mercury ammonium chloride(13.6%), thimerosal(10.2%), and other (less than 10%).
4. Male showed a relatively high positive rate on carbam mix associated with rubber ; whereas feales showed a high positive rate on antigens associated with jewelry and cosmetics, for example nickel sulfate.
5. The high positive rate on nickel sulfate, cobalt chloride, potassium dichromate, and mercury ammonium chloride were found in the age group between 20 and 39. The positive incidence of p-phenylenediamine was found to be mostly
higher
after 50 years of age.
|