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Health-related quality of life in COPD patients with chronic respiratory failure

Depts of ¹ Pulmonary Diseases, and ² Home Mechanical Ventilation, and ³ Center for Rehabilitation, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.

CORRESPONDENCE: M. L. Duiverman, Dept of Pulmonary Diseases, University Medical Center Groningen, University of Groningen, Post box 30002, 9750 RA Haren, The Netherlands. Fax: 31 505338803. E-mail: M.Duiverman{at}int.umcg.nl

Keywords: Chronic obstructive pulmonary disease, quality of life, respiratory insufficiency

Received: December 4, 2007
Accepted March 10, 2008

The Maugeri Respiratory Failure (MRF-28) and Severe Respiratory Insufficiency (SRI) questionnaires were recently developed to assess health-related quality of life (HRQoL) in patients with chronic respiratory failure, although not exclusively in chronic obstructive pulmonary disease (COPD) patients. The aim of the present study was to investigate whether the MRF-28 and SRI are reliable and valid HRQoL questionnaires in COPD patients with chronic hypercapnic respiratory failure (CHRF).

In total, 72 COPD patients with CHRF underwent pulmonary function and exercise testing, and completed the MRF-28, the SRI, the Chronic Respiratory Questionnaire (CRQ), the Hospital Anxiety and Depression Scale, the Groningen Activity and Restriction Scale and two dyspnoea indexes.

Physical domain scores of the questionnaires correlated with exercise tolerance, dyspnoea and daily activities, while psychological domains correlated strongly with anxiety and depression. Anxiety scores accounted for 51 and 56% of the total explained variance in total CRQ and SRI scores, respectively. The emphasis of the MRF-28 was restrictions in activities of daily living (52% of total variance).

In conclusion, the present study showed that the Maugeri Respiratory Failure and Severe Respiratory Insufficiency questionnaires were reliable and valid questionnaires in chronic obstructive pulmonary disease patients with chronic hypercapnic respiratory failure. While the emphasis in the Maugeri Respiratory Failure questionnaire is on activities of daily living, the Severe Respiratory Insufficiency questionnaire, like the Chronic Respiratory Questionnaire, is more related to anxiety and depression.

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