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Can we identify patients with different illness schema following an acute exacerbation of COPD: A cluster analysis

Authors
Journal
Respiratory Medicine
0954-6111
Publisher
Elsevier
Volume
108
Issue
2
Identifiers
DOI: 10.1016/j.rmed.2013.10.016
Keywords
  • Chronic Obstructive Pulmonary Disease (Copd)
  • Pulmonary Rehabilitation (Pr)
  • Psychological Interventions
  • Cluster Analysis
  • Illness Perceptions
  • Exacerbations
Disciplines
  • Design
  • Medicine
  • Psychology

Abstract

Summary Introduction Pulmonary Rehabilitation (PR) reduces hospital admissions following an acute exacerbation of Chronic Obstructive Pulmonary Disease (COPD) but adherence is known to be poor. Patients' illness perceptions may affect adherence to disease-management strategies but to date have not been explored following an exacerbation. The study aim is two-fold; firstly to prospectively explore acceptance and uptake of post-exacerbation PR and secondly to identify possible clusters of patients' illness perceptions following hospitalisation for an exacerbation of COPD. Methods Patients admitted to hospital with an exacerbation of COPD were recruited to a prospective observational study. Self-reported illness perceptions, mood, health status and self-efficacy were assessed. Acceptance and uptake of PR were recorded at six months. Cluster analysis of Illness Perceptions Questionnaire-Revised data was used to establish groups of patients holding distinct beliefs. Results 128 patients were recruited. Acceptance and uptake of PR following an acute exacerbation was poor with only 9% (n = 11) completing the programme. Cluster analysis revealed three distinct groups: Cluster 1 ‘in control’ (n = 52), Cluster 2 ‘disengaged’ (n = 36) and Cluster 3 ‘distressed’ (n = 40). Significant between-cluster differences were observed in mood, health status and self-efficacy (p < 0.01). Acceptance and uptake of PR did not differ between clusters. Conclusions Acceptance/uptake of post-exacerbation PR was found to be poor. Three distinct illness schema exist in patients following an acute exacerbation. This information may be useful in developing novel psychologically-informed interventions designed to reduce feelings of distress and perhaps facilitate a PR intervention for this vulnerable population.

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