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Patch testing in Lao medical students.

Catriona I Wootton1,2, Mick Soukavong3, Sonexai Kidoikhammouan3

  • 1Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Vientiane, Laos.

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Summary
This summary is machine-generated.

This study identified common allergens in Lao medical students, finding nickel and gold as frequent triggers. Results highlight a higher prevalence of positive patch tests in females, offering crucial data for allergy research in Laos.

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Area of Science:

  • Dermatology
  • Allergology
  • Epidemiology

Background:

  • Dermatological services in Laos are concentrated in the capital.
  • Patch testing data for common cutaneous allergens in Laos is currently unavailable.
  • Limited dermatological infrastructure necessitates understanding local allergen prevalence.

Purpose of the Study:

  • To document positive patch test reactions in medical students in Laos.
  • To identify common contact allergens within this population.
  • To establish baseline data for future dermatological research in Southeast Asia.

Main Methods:

  • 150 medical students underwent patch testing using TRUE Test® panels (35 allergens).
  • Patch test readings were conducted on days 2 and 4.
  • Analysis focused on documenting positive reactions and identifying specific allergens.

Main Results:

  • 25.3% of students (38/150) showed at least one positive patch test reaction.
  • Females exhibited a significantly higher positive reaction rate (34%) compared to males (9%).
  • The most frequent allergens identified were nickel (10%), gold (6.6%), and thiomersal (6.6%).

Conclusions:

  • This study provides the first documented patch test results for Lao medical students and the adult Lao population.
  • Findings offer insights into background contact sensitivity levels in Laos.
  • Results will guide future research on contact allergy in the region.