Ann Dermatol.  2022 Dec;34(6):431-441. 10.5021/ad.21.260.

Allergic Sensitization Pattern in the Korean Dermatologic Patients

Affiliations
  • 1Department of Dermatology, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
  • 2Department of Biomedicine & Health Sciences, The Catholic University of Korea, Seoul, Korea
  • 3Department of Psychology, Woosuk University, Wanju, Korea
  • 4Department of Pediatrics, Dankook University College of Medicine, Cheonan, Korea

Abstract

Background
Avoiding causative allergens is important for controlling the clinical course of allergic diseases. Allergen sensitization is influenced by many factors including the environment and lifestyle. The socioeconomic development, climate, and lifestyle changes have increased the prevalence of allergic diseases worldwide. However, there is little information about changes in the trend of the common allergens over time.
Objective
This study was aimed at identifying the trends of the common allergens in Korea over a 10-year period based on the results of the multiple allergosorbent test chemiluminescent assay (MAST-CLA).
Methods
We retrospectively reviewed the medical records of 5,760 patients aged ≥18 years who visited the Dermatology Department at a tertiary hospital over a period of 10 years. The serum total immunoglobulin (Ig) E and specific IgE levels to 41 allergens were determined using MAST-CLA, along with the clinical diagnosis, duration of illness, white blood cell count and eosinophil percentage.
Results
Dermatophagoides farinae, Dermatophagoides pteronyssinus, and house dust were the most prevalent allergens during the 10 years period, but the percentage of higher class responses has decreased in recent years. The number of patients sensitized to house dust (p<0.001), dogs (p=0.005), and cats (p<0.001) increased while that of patients sensitized to cockroaches (p<0.001) and storage mites (p<0.001) decreased over time. There were no significant changes in the total number of sensitizing allergens over time.
Conclusion
The common allergens have changed over time. Based on the findings of this study, physicians and patients should consider changing their strategies for disease prevention and management.

Keyword

Allergens; Allergy; Atopic dermatitis; Immunoglobulin E; Multiple allergosorbent test chemiluminescent assay; Time trend
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