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Childhood asthma

W J Millar1, G B Hill

  • 1Health Statistics Division, Statistics Canada, Ottawa. millway@statcan.ca

Health Reports
|February 2, 1999
PubMed
Summary
This summary is machine-generated.

Childhood asthma prevalence and hospitalizations have significantly increased. Factors like allergies, parental asthma, and regional residence are linked to higher childhood asthma rates.

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Area of Science:

  • Pediatric respiratory health
  • Epidemiology
  • Public health surveillance

Background:

  • Childhood asthma represents a significant public health concern.
  • Trends in asthma prevalence and healthcare utilization require ongoing monitoring.
  • Understanding associated risk factors is crucial for targeted interventions.

Purpose of the Study:

  • To analyze trends in childhood asthma prevalence (ages 0-14) from 1978/79 to 1994/95.
  • To examine trends in hospital separations for childhood asthma from 1974/75 to 1994/95.
  • To identify factors associated with childhood asthma.

Main Methods:

  • Utilized data from the National Longitudinal Survey of Children and Youth (NLSCY) and the National Population Health Survey (NPHS) for prevalence.

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  • Analyzed hospital separation data from the Hospital Morbidity File.
  • Employed logistic regression to assess associations between characteristics and asthma odds.

    • Main Results:

    • Observed a sharp increase in both childhood asthma prevalence and hospital separation rates.
    • Identified a history of bronchitis and allergies as significant risk factors.
    • Parental asthma and residence in Atlantic provinces and Quebec were associated with higher asthma rates.

    Conclusions:

    • Childhood asthma prevalence and associated hospitalizations have markedly increased.
    • Specific factors including allergies, family history, and geographic location are linked to increased risk.
    • Further research and public health strategies are warranted to address these trends.