Ann Dermatol.  2016 Feb;28(1):80-85. 10.5021/ad.2016.28.1.80.

Avoidance Behavior against Positive Allergens Detected with a Multiple Allergen Simultaneous Test Immunoblot Assay in Patients with Urticaria: Factors Associated with Avoidance Success/Failure

Affiliations
  • 1Department of Dermatology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea.
  • 2PHD Dermatology Clinic, Seoul, Korea.
  • 3Department of Dermatology, Hallym University Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea. temp@hallym.or.kr

Abstract

BACKGROUND
Avoidance behavior against positive allergens detected by using multiple allergen simultaneous test (MAST)-immunoblot assay in patients with urticaria has been rarely reported.
OBJECTIVE
We aimed to assess the avoidance behavior of patients with urticaria against positive allergens detected with a MAST.
METHODS
One hundred and one urticaria patients who showed positivity to at least one allergen on a MAST completed a questionnaire regarding their test results. The avoidance behavior of the patients was evaluated, and relevant determining factors of avoidance success/failure were statistically assessed.
RESULTS
We detected 144 different data (n=51, food allergens; n=17, pollen allergens; and n=76, aeroallergens) from 101 patients with urticaria. The avoidance failure rates were 33.3% for food allergens, 70.6% for pollen allergens, and 30.3% for aeroallergens. The pollen group showed a significantly higher avoidance failure rate than the food and aeroallergen groups (p<0.05). The patients with higher educational levels or more severe urticaria tended to successfully avoid allergens (p<0.05). The monthly household income level and patients' reliability to the test showed borderline correlations (p=0.057 and p=0.075, respectively).
CONCLUSION
We believe that the results of this study could be helpful in predicting avoidance success or failure against allergens in patients with urticaria when clinicians conduct allergen-specific immunoglobulin E tests.

Keyword

Allergens; Immunoglobulin E; Urticaria
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