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The epidemiology of childhood asthma

D P Strachan1

  • 1Department of Public Health Sciences, St George's Hospital Medical School, London, UK. d.strachan@sghms.ac.uk

Allergy
|July 28, 1999
PubMed

Insights

Childhood asthma presents with variable symptoms and unpredictable prognoses, often differing significantly between individuals and global regions. Research highlights increasing prevalence and complex remission/relapse patterns throughout life.

Area of Science:

  • Pediatrics
  • Pulmonology
  • Epidemiology

Background:

  • Childhood asthma is characterized by significant variability in clinical presentation and disease course.
  • The relationship between early infant wheezing and later atopic asthma remains a subject of debate.
  • Asthma prognosis in children is highly variable and difficult to predict accurately using early indicators.

Purpose of the Study:

  • To explore the inherent variability in childhood asthma manifestations and prognosis.
  • To examine the global and regional variations in asthma prevalence and its contributing factors.
  • To understand the long-term trajectory of asthma, including remission and relapse patterns.

Main Methods:

  • Review of long-term follow-up studies on wheezy children through adolescence and into adulthood.
  • Analysis of global epidemiological data on asthma prevalence over the past three decades.
  • Comparison of asthma symptom distribution across different countries and urban-rural settings.

Main Results:

  • Asthma exhibits diverse clinical manifestations and highly variable prognoses, with complex remission and relapse patterns observed over time.
  • A modest but sustained global increase in asthma symptoms has been noted over the last 30 years.
  • Significant international and urban-rural disparities in asthma prevalence exist, contrasting with more uniform distribution in industrialized nations.

Conclusions:

  • The variability of childhood asthma necessitates individualized management approaches.
  • Understanding the complex natural history of asthma is crucial for effective public health strategies.
  • Environmental and socioeconomic factors likely contribute to the observed geographical variations in asthma prevalence.

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