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Asthma control measurement using five different questionnaires: a prospective study.
Francois Vermeulen1, Isabelle de Meulder, Marianne Paesmans
1Chest Service, CHU Saint-Pierre, Rue Haute 322, 1000 Brussels, Belgium. vermeulenfr@yahoo.com
Respiratory Medicine
|July 30, 2013
Summary
Five asthma control questionnaires show only moderate agreement. These tools do not appear to measure the same symptoms, impacting asthma control assessment.
Area of Science:
- Pulmonology
- Clinical Assessment
- Asthma Management
Background:
- Asthma control assessment relies heavily on questionnaires.
- Numerous asthma control questionnaires exist, but their interchangeability is unclear.
- This study addresses the variability in asthma control measurements from different scores.
Purpose of the Study:
- To evaluate the agreement between five frequently used asthma control questionnaires.
- To determine if different asthma control scores yield similar measurements.
- To compare the GINA, Asthma Control Test™, Royal College of Physician score, ATAQ, and ACQ.
Main Methods:
- Prospective study involving 99 asthma patients.
- Patients completed five asthma control questionnaires: GINA, Asthma Control Test™, Royal College of Physician score, ATAQ, and ACQ.
- Kappa coefficient was utilized to assess inter-questionnaire agreement.
Main Results:
- Moderate agreement was observed between the GINA score and other questionnaires (kappa coefficients 0.41-0.60).
- All other scores reported higher 'controlled' asthma levels and underestimated 'uncontrolled' levels compared to GINA.
- The Asthma Control Questionnaire (ACQ) and Asthma Therapy Assessment Questionnaire (ATAQ) showed discrepancies in identifying 'partly controlled' asthma.
Conclusions:
- Significant variability exists among commonly used asthma control questionnaires.
- The GINA score indicated lower controlled asthma rates and higher uncontrolled rates.
- The findings suggest that these questionnaires assess different aspects of asthma control and are not interchangeable.
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