Application of a theoretical model to evaluate COPD disease management

Area of Science:

• Pulmonary Medicine
• Health Services Research
• Evidence-Based Practice

Background:

• Disease management programs often lack theoretical underpinnings.
• A novel evaluation model links disease management interventions to outcomes.
• This study evaluates a chronic obstructive pulmonary disease (COPD) management program in primary care.

Purpose of the Study:

• To methodically evaluate the impact of a COPD disease management program.
• To assess effects on process, intermediate, and final health outcomes.
• To determine the utility of a theory-driven evaluation model.

Main Methods:

• Quasi-experimental study with 189 COPD patients in Dutch primary care.
• 12-month follow-up including patient education and structured nurse coordination.
• Data collected on intermediate outcomes (knowledge, self-efficacy) and final outcomes (dyspnea, quality of life).

Main Results:

• Significant improvements observed in dyspnea and patient experiences (p < 0.001).
• No significant improvement in mean quality of life scores (CRQ, CCQ).
• Intermediate outcomes like disease-specific knowledge and medication compliance improved significantly.

Conclusions:

• Theory-driven models enhance the design and evaluation of disease management programs.
• A theoretical approach strengthens evaluation designs for complex interventions.
• COPD management programs positively influence patient outcomes of care.