Given that the assessment of health-related quality of life (HRQoL) is an essential outcome measure to optimize chronic obstructive pulmonary disease (COPD) patient management, there is a need for a short and fast, reliable and valid instrument for routine use in clinical practice. The objective of this study was to analyse the relationship between the disease-specific Airways questionnaire (AQ20) and the generic 15D health-related quality of life (HRQoL) instrument simultaneously in a large cohort of patients with COPD. We also compare the HRQoL of COPD patients with that of the general population.
The AQ20 and 15D were administered to 739 COPD patients representing an unselected hospital-based COPD population. The completion rates and validity of, and correlations among the questions and dimension scores were examined. A factor analysis with varimax rotation was performed in order to find subsets of highly correlating items of the questionnaires.
The summary scores of AQ20 and 15D were highly correlated (r = - 0.71, p
Notes
Cites: Ann Intern Med. 1995 Jun 1;122(11):823-327741366
Cites: Qual Life Res. 1993 Dec;2(6):467-758161981
Cites: Lancet. 1997 May 3;349(9061):1269-769142060
Cites: Am J Respir Crit Care Med. 1999 Jan;159(1):321-409872857