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The PREVASC study: the clinical effect of a multifaceted educational intervention to prevent childhood asthma

H J A M Schönberger1, E Dompeling, J A Knottnerus

  • 1Dept of General Practice, Research Institute CAPHRI, University Maastricht, Maastricht, The Netherlands. Huub.Schonberger@hag.unimaas.nl

The European Respiratory Journal
|April 2, 2005
PubMed

Insights

This study investigated asthma prevention in high-risk infants. A nurse-led intervention modestly reduced asthma-like symptoms by age two, particularly in females, but overall effectiveness requires further investigation.

Area of Science:

  • Pediatrics
  • Allergy and Immunology
  • Public Health

Background:

  • Asthma is a leading chronic childhood illness, necessitating primary prevention strategies.
  • Early life allergen and environmental exposure are implicated in asthma development.
  • Multifaceted educational interventions aim to mitigate these risks.

Purpose of the Study:

  • To evaluate the clinical effectiveness of a nurse-led, multifaceted educational intervention for primary asthma prevention in high-risk newborns.
  • To assess the impact of reducing exposure to common allergens and passive smoke on asthma-like symptoms in early childhood.

Main Methods:

  • A randomized controlled trial involving 476 high-risk infants recruited prenatally.
  • Intervention group received education on allergen avoidance and smoke reduction; control group received usual care.
  • Follow-up of 443 infants for two years, monitoring asthma-like symptoms and immunoglobulin E levels.

Main Results:

  • The intervention group showed fewer asthma-like symptoms (wheezing, shortness of breath, night cough) at two years compared to the control group.
  • No significant differences in total or specific immunoglobulin E levels were observed between groups.
  • A significant reduction in asthma-like symptoms was noted in females within the intervention group, but not in males.

Conclusions:

  • The multifaceted educational intervention demonstrated modest effectiveness in reducing asthma-like symptoms by age two, particularly in female infants.
  • The intervention was not fully effective in preventing asthma-like symptoms during the first two years of life overall.
  • Long-term follow-up is crucial to determine if this intervention can ultimately prevent the development of childhood asthma.

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