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The challenge of diagnosing atopic diseases: outcomes in Cuban children depend on definition and methodology

M Wördemann1, K Polman, R J Diaz

  • 1Department of Parasitology, Prince Leopold Institute of Tropical Medicine, Antwerp, Belgium.

Allergy
|August 22, 2006
PubMed

Insights

Prevalence of childhood atopic diseases in Cuba varies significantly based on diagnostic methods. Standardized diagnostic approaches are crucial for accurate epidemiological studies of asthma and allergies.

Area of Science:

  • Pediatrics
  • Epidemiology
  • Allergy and Immunology

Background:

  • Global increase in childhood asthma and atopic diseases necessitates standardized diagnostic tools.
  • Current diagnostic methods and definitions for atopic diseases lack global consensus.
  • Investigating atopic disease prevalence in Cuban children using diverse diagnostic approaches.

Purpose of the Study:

  • To determine the occurrence of atopic diseases in Cuban children.
  • To compare the outcomes of various diagnostic methods for atopic diseases.
  • To highlight the need for standardized diagnostic criteria in epidemiological research.

Main Methods:

  • A cohort of 398 Cuban schoolchildren (5-13 years) was assessed.
  • Diagnostic methods included International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire, clinical examination, spirometry, and skin prick testing.
  • Data were analyzed separately and combined using established literature definitions and scores.

Main Results:

  • Questionnaire-based asthma prevalence ranged from 21-39%, atopic dermatitis 9-19%, and rhinoconjunctivitis 15-46%.
  • Spirometry identified asthma in 7% of children; combined methods yielded 5% asthma rates.
  • Overall, 64-66% of children had atopic disease based on ISAAC or all methods, with low rates of clinical findings.

Conclusions:

  • Diagnostic outcomes for atopic diseases are highly dependent on the chosen definition and methodology.
  • A consensus on diagnosing asthma and other atopic diseases in epidemiological studies is urgently needed.
  • Atopic disease prevalences in Cuban children, based on the ISAAC questionnaire, are comparable to high-prevalence countries globally.
Abstract

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