TY - JOUR
T1 - A randomised trial to evaluate the self-administered standardised chronic respiratory questionnaire
AU - Schünemann, H. J.
AU - Goldstein, R.
AU - Mador, M. J.
AU - McKim, D.
AU - Stahl, E.
AU - Puhan, M.
AU - Griffith, L. E.
AU - Grant, B.
AU - Austin, P.
AU - Collins, R.
AU - Guyatt, G. H.
PY - 2005/1
Y1 - 2005/1
N2 - The original chronic respiratory questionnaire (CRQ), one of the most widely used measures of health-related quality of life (HRQL) in chronic respiratory disease (CRD), is traditionally interviewer administered (IA) and includes an individualised dyspnoea domain. The present authors studied the impact of self-administered (SA) and standardised dyspnoea questions on CRQ measurement properties. In a factorial design multicentre trial, 177 patients with CRD (mean age 67.7 yrs; mean forced expiratory volume in one second per cent predicted 44.6%) were randomised to CRQ-IA (n=86) or CRQ-SA (n=91), and to initially complete the standardised or individualised items before and after respiratory rehabilitation. While maintaining validity, the CRQ-SA proved more responsive to changes in HRQL than the CRQ-IA in all domains. Compared with the standardised dyspnoea domain, the individualised dyspnoea domain indicated greater responsiveness. The correlations of baseline scores and change scores with other HRQL instruments indicated good validity of the CRQ-SA. In conclusion, self-administration and standardisation of the chronic respiratory questionnaire maintains validity and responsiveness relative to the interviewer-administered chronic respiratory questionnaire. These results challenge the assumption that interviewer-administered questionnaires are superior to self-administered questionnaires in older patients with chronic respiratory disease. Copyright
AB - The original chronic respiratory questionnaire (CRQ), one of the most widely used measures of health-related quality of life (HRQL) in chronic respiratory disease (CRD), is traditionally interviewer administered (IA) and includes an individualised dyspnoea domain. The present authors studied the impact of self-administered (SA) and standardised dyspnoea questions on CRQ measurement properties. In a factorial design multicentre trial, 177 patients with CRD (mean age 67.7 yrs; mean forced expiratory volume in one second per cent predicted 44.6%) were randomised to CRQ-IA (n=86) or CRQ-SA (n=91), and to initially complete the standardised or individualised items before and after respiratory rehabilitation. While maintaining validity, the CRQ-SA proved more responsive to changes in HRQL than the CRQ-IA in all domains. Compared with the standardised dyspnoea domain, the individualised dyspnoea domain indicated greater responsiveness. The correlations of baseline scores and change scores with other HRQL instruments indicated good validity of the CRQ-SA. In conclusion, self-administration and standardisation of the chronic respiratory questionnaire maintains validity and responsiveness relative to the interviewer-administered chronic respiratory questionnaire. These results challenge the assumption that interviewer-administered questionnaires are superior to self-administered questionnaires in older patients with chronic respiratory disease. Copyright
KW - Chronic obstructive pulmonary disease
KW - Health-related quality of life
KW - Pulmonary rehabilitation
KW - Randomised controlled trial
KW - Standardised administration
UR - http://www.scopus.com/inward/record.url?scp=13444273544&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=13444273544&partnerID=8YFLogxK
U2 - 10.1183/09031936.04.00029704
DO - 10.1183/09031936.04.00029704
M3 - Article
C2 - 15640320
AN - SCOPUS:13444273544
SN - 0903-1936
VL - 25
SP - 31
EP - 40
JO - European Respiratory Journal
JF - European Respiratory Journal
IS - 1
ER -