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A measure of quality of life for clinical trials in chronic lung disease
Open accessAbstract
Since the relationships between pulmonary function, exercise capacity, and functional state or quality of life are generally weak, a self report questionnaire has been developed to determine the effect of treatment on quality of life in clinical trials. One hundred patients with chronic airflow limitation were asked how their quality of life was affected by their illness, and how important their symptoms and limitations were. The most frequent and important items were used to construct a questionnaire evaluating four dimensions: dyspnoea, fatigue, emotional function, and the patient's feeling of control over the disease (mastery). Reproducibility, tested by repeated administration to patients in a stable condition, was excellent: the coefficient of variation was less than 12% for all four dimensions. Responsiveness (sensitivity to change) was tested by administering the questionnaire to 13 patients before and after optimisation of their drug treatment and to another 28 before and after participation in a respiratory rehabilitation programme. In both cases large, statistically significant improvements in all four dimensions were noted. Changes in questionnaire score were correlated with changes in spirometric values, exercise capacity, and patients' and physicians' global ratings. Thus it has been shown that the questionnaire is precise, valid, and responsive. It can therefore serve as a useful disease specific measure of quality of life for clinical trials.
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“The high prevalence of symptoms consistent with anxiety or depression among those enrolling in PR means that such symptoms are often identified by COPD disease-specific quality of life instruments, such as the Chronic Respiratory Disease Questionnaire90 or the St. George Respiratory Questionnaire.91”
From Anxiety and Depression in COPD (2008) · cites this paper as [90]
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“Other observational studies71,90,91 have found similar reductions in symptoms of depression, anxiety, and emotional distress associated with PR.”
From Anxiety and Depression in COPD (2008) · cites this paper as [90]
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Self-citationThe impact of integrating physical health into a brief CBT approach for medically ill veterans
Brandt, C. P., Deavers, F., Hundt, N. E., Fletcher, T. L., & Cully, J. A. (2020) · Journal of Clinical Psychology in Medical Settings · doi:10.1007/s10880-019-09634-2 · Cited by 4
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Metadata
- Authors
- Guyatt, G. H., Berman, L. B., Townsend, M., Pugsley, S. O., & Chambers, L. W.
- Affiliations
- McMaster University (CA)
- Venue
- Thorax
- Publisher
- BMJ
- Published
- 1987-10-01
- Volume
- 42
- Issue
- 10
- Pages
- 773-778
- ISSN
- 0040-6376 (ISSN-L)
- PMC
- PMC460950
- OpenAlex
- W2097667004
- Cited by
- 1,721
- References
- 28
- Citations by year
- 2026: 19 · 2025: 17 · 2024: 32 · 2023: 26 · 2022: 30 · 2021: 34 · 2020: 39 · 2019: 37 · 2018: 30 · 2017: 53 · 2016: 46 · 2015: 54 · 2014: 60 · 2013: 60 · 2012: 59
- FWCI
- 12.15
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Thorax (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Chronic Obstructive Pulmonary Disease (COPD) Research
- Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Health Systems, Economic Evaluations, Quality of Life
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Asthma and respiratory diseases
- Keywords
- quality of life, chronic lung disease, chronic airflow obstruction, self-report questionnaire, dyspnea, fatigue, emotional functioning, reproducibility, responsiveness, pulmonary rehabilitation, spirometry, exercise capacity
- MeSH terms
- Clinical Trials as Topic, Humans, Lung Diseases, Obstructive, Quality of Life, Surveys and Questionnaires
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