English, Article edition: Psychometric and Utility-Based Measures of Health Status of Asthmatic Patients with Different Disease Control Level Agota Szende; Klas Svensson; Elisabeth Stahl; ...

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Physical Description
  • article
Language
  • English

Edition details

Title
  • Psychometric and Utility-Based Measures of Health Status of Asthmatic Patients with Different Disease Control Level
Author
  • Agota Szende
  • Klas Svensson
  • Elisabeth Stahl
  • Agnes Meszaros
  • Gyula Y. Berta
Physical Description
  • article
Notes
  • Objective: To explore the relationship between asthma control level and health-related QOL (HR-QOL), and to understand the role of various psychometric and utility-based methods in studying this relationship. Methods: Two hundred and twenty-eight consecutive adult outpatients and inpatients at four sites participated in the study. Physicians identified the level of disease control according to the Global Initiative for Asthma (GINA) classification system. Patients filled in three different HR-QOL questionnaires (EuroQol Results: All patient-reported evaluation methods could discriminate between patients with different disease control levels, and both generic and disease-specific instruments strongly correlated to each other. The magnitude of differences in HR-QOL between groups with different disease control levels was clinically meaningful. All three HR-QOL measures reflected a relationship between disease control level and HR-QOL, but the actual pattern of the relationship depended on the instrument used. Utilities gained from the EQ-5D index, compared with the SF-6D index, had higher values in the patient group with the best disease control and lower values in the patient group with poor disease control. Conclusion: When choosing an instrument to measure the health status of asthmatic patients in clinical studies, the severity range of the study population should be considered. Researchers might prefer to use the EQ-5D in asthma patients with severe disease or poor disease control and the SF-6D in patients with mild disease or good disease control.
  • Asthma, Quality-of-life-rating-scales
  • RePEc:wkh:phecon:v:22:y:2004:i:8:p:537-547
Language
  • English
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