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Prevalence and comorbidity of allergic diseases in preschool children

Hyeong Yun Kim1, Eun Byul Kwon, Ji Hyeon Baek

  • 1Department of Pediatrics, Bundang Jesaeng General Hospital, Seongnam, Korea.

Korean Journal of Pediatrics
|September 11, 2013
PubMed

Insights

This study found high rates of allergic rhinitis in Korean preschoolers. Allergic conjunctivitis frequently co-occurred with asthma and allergic rhinitis in this age group.

Area of Science:

  • Pediatric Allergy and Immunology
  • Epidemiology of Allergic Diseases
  • Childhood Respiratory and Skin Conditions

Background:

  • Allergic diseases significantly impact children's quality of life.
  • Comorbidities of allergic diseases are well-documented in adults but less so in preschoolers.
  • Understanding allergic disease prevalence in young children is crucial for effective management.

Purpose of the Study:

  • To determine the prevalence of allergic diseases in Korean preschool children.
  • To investigate the comorbidities among allergic diseases in this population.
  • To provide data on allergic conditions in a young, understudied demographic.

Main Methods:

  • A cross-sectional study involving 615 Korean children aged 3-6 years.
  • Utilized the Korean version of the International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire, adapted for preschoolers.
  • Assessed symptom prevalence and comorbidities over the preceding 12 months.

Main Results:

  • Prevalence rates: Asthma (13.8%), allergic rhinitis (40.7%), atopic dermatitis (20.8%), allergic conjunctivitis (14.8%), food allergy (10.4%), drug allergy (0.8%).
  • Significant associations found: Allergic rhinitis in children with asthma (64.3%), asthma in children with allergic rhinitis (21.6%).
  • High co-occurrence of allergic conjunctivitis and rhinitis (64.8% rhinitis with conjunctivitis; 23.6% conjunctivitis with rhinitis).

Conclusions:

  • The prevalence of current rhinitis in Korean preschoolers exceeds previous reports.
  • Allergic conjunctivitis shows a strong association with asthma and allergic rhinitis.
  • Further research is needed to fully understand the prevalence and health impact of these comorbidities in preschool children.
Abstract

Keywords:
Allergic rhinitisAsthmaComorbidityPreschool childPrevalence

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