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How should we quantify asthma control? A proposal.

Louis-Philippe Boulet1, Véronique Boulet, Joanne Milot

  • 1Centre de recherche de l'Hôpital Laval, Institut de cardiologie et de pneumologie de l'Université Laval, 2725 chemin Sainte-Foy, Sainte-Foy, Québec, Canada. lpboulet@med.ulaval.ca

Chest
|December 12, 2002
PubMed
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A new asthma control scoring system was developed, offering a simple percentage-based method for assessing symptom control. This tool aids clinicians and researchers in quantifying asthma control effectively.

Area of Science:

  • Pulmonology
  • Respiratory Medicine
  • Clinical Assessment

Background:

  • Current asthma guidelines lack a simple, practical method for quantifying asthma control.
  • A need exists for a tool applicable in both clinical practice and research settings.

Purpose of the Study:

  • To introduce a novel percentage-based scoring system for asthma control.
  • To compare this new scoring system with patient self-assessment and the Mini Asthma Quality of Life (MAQOL) questionnaire.

Main Methods:

  • Developed a scoring system incorporating symptom control, expiratory flows, and optional airway inflammation (sputum eosinophils).
  • Compared the new system's scores against patient-reported asthma control and MAQOL scores in 42 asthma patients.

Main Results:

Related Experiment Videos

  • The new system yielded scores for symptoms (87.8%), expiratory flows (88.6%), and eosinophilia (66.2%).
  • The global asthma control score (80.9%) correlated significantly with symptom scores (p < 0.001) and nearly with FEV1 (p = 0.05).
  • Only symptom scores correlated with the MAQOL questionnaire.

Conclusions:

  • A simple, percentage-based asthma control scoring system was successfully developed.
  • The symptom score component shows promise for quantifying asthma control in clinical and research contexts.
  • This tool offers a practical approach to assessing global and specific aspects of asthma control.