title: [Study on the contact allergen in 720 patients with dermatitis and eczema].
abstract: In order to investigate the causative factors of dermatitis and eczema, patch test was performed using the GB7804-87 standard allergens in 720 patients with dermatitis and eczema. There were 376 patients reacted to one or more allergens. The total positive reaction rate was 52.2%. Positive reactions were most frequently with cobaltsulphate (118 cases, 16.4%), potassium dichromate (115 cases, 16.0%), nickelchloride (108 cases, 15.0%) mercuric chloride (106 cases, 14.7%), Beihai detergent powder (63 cases, 8.8%), and p-phenylene diamine (50 cases, 6.9%). The positive rate was above 1% in 18 allergens. This study shows that the standard screening allergens are valuable in the investigation of the aetiology of the dermatitis and eczema.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000485:Allergens; D003035:Cobalt / Q000009:adverse effects*; D003875:Drug Eruptions / Q000209:etiology*; D004485:Eczema / Q000139:chemically induced*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009532:Nickel / Q000009:adverse effects; D010328:Patch Tests; D011192:Potassium Dichromate / Q000009:adverse effects*