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Testing the functional status model in patients with chronic obstructive pulmonary disease
Mei-Ling Yeh1, Hsing-Hsia Chen, Yu-Chien Liao
1Graduate Institute of Integration of Traditional Chinese Medicine with Western Nursing, National Taipei College of Nursing, Taipei, Taiwan.
Journal of Advanced Nursing
|October 27, 2004
Summary
A new functional status model for chronic obstructive pulmonary disease (COPD) was validated, incorporating disease severity, dyspnoea, age, exercise tolerance, fatigue, depression, anxiety, and health perception. This model aids in developing effective COPD management strategies.
Area of Science:
- Pulmonary Medicine
- Health Psychology
- Biostatistics
Background:
- Chronic obstructive pulmonary disease (COPD) significantly impacts patients' quality of life due to progressive functional decline, particularly dyspnoea.
- Understanding both physiological and psychological aspects of functional status is crucial for effective COPD management and patient empowerment.
Purpose of the Study:
- To test and validate a hypothesized model of functional status in patients with chronic obstructive pulmonary disease (COPD).
- To identify key variables influencing functional status in COPD patients.
Main Methods:
- A non-experimental research design was employed with 138 COPD patients.
- Data collection involved questionnaires, the 6-minute walking distance test, and pulmonary function tests.
- Structural equation modeling (SEM) was utilized to analyze the proposed functional status model.
Main Results:
- The proposed functional status model demonstrated a good fit with the collected data, with all path coefficients being statistically significant.
- Key variables included disease severity, dyspnoea, age, exercise tolerance, fatigue, depression, anxiety, health perception, and functional performance.
Conclusions:
- The validated functional status model encompasses functional performance, capacity, and psychological/physiological factors.
- This model provides a framework for developing targeted strategies and interventions to improve functional status in COPD patients.