The prevalence and natural history of wheezing in early childhood

Insights

Early onset of childhood wheeze generally indicates a better prognosis for respiratory illness. Parental recall of early wheezing symptoms is often incomplete, potentially skewing prevalence data.

Area of Science:

  • Pediatrics
  • Respiratory Medicine
  • Epidemiology

Background:

  • Wheezing is a common symptom in early childhood.
  • Understanding the long-term implications and accurate prevalence of childhood wheeze is crucial for effective management.

Purpose of the Study:

  • To investigate the prognosis of childhood wheeze based on age of onset.
  • To compare the accuracy of parental recall versus general practice records for identifying early wheezing episodes.

Main Methods:

  • Retrospective review of general practice records for 369 children at age seven.
  • Comparison of parental questionnaire data with medical records for 174 children.

Main Results:

  • 31% of children had a record of wheeze, with over half presenting before age three.
  • Earlier onset of wheeze correlated with a better prognosis for wheezing or lower respiratory tract illness at ages five to seven.
  • Parental recall of early wheeze was incomplete and biased by symptom severity and persistence.

Conclusions:

  • The age of onset is a significant factor in the prognosis of childhood wheeze.
  • Parental questionnaires may underestimate wheeze prevalence in infancy and overestimate persistent wheezing in later childhood due to recall bias.

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