Reliability and Validity of the Malay Version Chronic Respiratory Questionnaire for used among COPD Patients
- Author:
Ayiesah Ramli
;
Teh Zi Ying
;
Khatijahbe Mohd Ali
;
Roslina Abdul Manap
- Publication Type:Journal Article
- Keywords:
Chronic obstructive pulmonary disease;
St George Respiratory Questionnaire (SGRQ);
Chronic Respiratory Questionnaire (CRQ);
reliability;
validity;
Malay Version
- MeSH:
Chronic Obstructive Pulmonary Disease
- From:Malaysian Journal of Medicine and Health Sciences
2014;10(2):83-93
- CountryMalaysia
- Language:English
-
Abstract:
Introduction: Chronic Respiratory Questionnaire (CRQ) is one of the disease-specific questionnaires
to assess health related quality of life (HRQoL) among chronic obstructive pulmonary disease (COPD)
patients. Objectives: This study investigate the validity and reliability of Malay version CRQ among
COPD patients. Methods: The CRQ was administered twice to 46 patients with COPD (mean FEV1
44% predicted, FEV1/ IVC 37% predicted) from Medical Center of University Kebangsaan Malaysia
(PPUKM).Test-retest reliability was assessed using intra-class correlation coefficients (ICC). Internal
consistency was determined using Crohnbach’s alpha coefficients (α = 0.7). Spearman’s correlation
coefficient was done among the scores of CRQ, St George Respiratory Questionnaire (SGRQ) and sixminute
walking test (6MWT) to examine the concurrent validity of the CRQ (p<0.05). Results: High
internal consistency (α > 0.70) was observed for 3 domains of CRQ with exception of dyspnoea domain
(α = -0.631). Test retest reliability demonstrated strong correlation (ICC >0.80). Concurrent validity
of CRQ, showed significant correlations observed between domain of SGRQ’s symptom, impact and
total scores of SGRQ with CRQ’s dyspnoea and emotional function (-0.3< r < -0.4; p<0.05). Significant
correlation was observed between 6MWT and CRQ’s fatigue domain (r= 0.390; p=0.007). Conclusions:
The Malay version of CRQ is a reliable instrument for measuring health status of patients among chronic
respiratory disease especially COPD. Items of fatigue, emotion, and mastery domain of the CRQ are
reliable and valid and can be used to assess quality of life in patients with severe airways obstruction.
Items of the dyspnoea dimension are less reliable and should not be included in the overall score of the
CRQ in comparative research.
- Full text:P020150604550760130251.pdf
