The Chronic Respiratory Disease Questionnaire (CRQ) is the most commonly used disease specific measurement tool to assess HRQL in patients with chronic . Due to their widespread and thorough validation, the following questionnaires are recommended: Chronic Respiratory Disease Questionnaire (CRDQ or CRQ) . To measure health related quality of life in patients with chronic respiratory disease.

Author: Maumi Tegore
Country: Guyana
Language: English (Spanish)
Genre: Environment
Published (Last): 15 May 2005
Pages: 132
PDF File Size: 19.57 Mb
ePub File Size: 18.94 Mb
ISBN: 415-5-77632-616-3
Downloads: 60580
Price: Free* [*Free Regsitration Required]
Uploader: Gajin

Although the authors determined that the self-administered version of the CRQ perceives analogous levels of mastery, emotional function, and fatigue, they state that the different versions of the test should not be used interchangeably.

Outcomes in Cardiopulmonary Physical Therapy: Chronic Respiratory Disease Questionnaire (CRQ)

The 4 domains are scored separately and can illustrate changes in individual domains of HRQL. Many studies have examined the correlation between CRQ scores and the physiologic factors believed to contribute to dysfunction quesyionnaire patients with pulmonary disease.

Comparison of outcome measures for patients with chronic obstructive pulmonary disease COPD in an outpatient setting. In a study by Redelmeier et al, 24 CRQ score differences were also found to be moderately correlated with subjective comparison ratings made by patients regarding themselves and others.

Other domains of the CRQ including emotion and quesgionnaire significantly correlated with somatisation, anxiety, and depression domains of the SCL The validity of the CRQ is strengthened by the study performed by Shawn et al 14 which found statistically significant differences in CRQ scores between patients who had a relapse of their pulmonary condition and those who did not.

All questions were pretested to finalize structure and wording. List per page or see all. Available literature has repeatedly illustrated the ability of the CRQ to generate results that are reproducible in a variety of settings. For this reason, it is important to evaluate the outcomes of various interventions to ensure that patients are receiving the most efficient and chhronic available care.

Chronic Respiratory Disease Questionnaire-CRQ

After their second visit, patients from each study were asked to report global ratings of change in shortness of breath on daily rspiratory, level of fatigue, and emotional status.

National Center for Biotechnology InformationU. Six minute walk test scores, however, were found to be only weakly correlated with all domains of the CRQ.


In the fatigue domain, which was not reliable as a whole, 3 of the 4 individual items showed insignificant correlation. Reliability and validity of the chronic respiratory questionnaire CRQ Thorax. Other useful means of the measure are interpreting studies that show significant findings and improvement of expressing results. Subsequent versions of the test have been developed to improve time and ease of administration. Power of outcome measurements to detect clinically significant changes in pulmonary rehabilitation of patients with COPD.

From these results, the researchers concluded that the CRQ has excellent reliability.

Outcomes in Cardiopulmonary Physical Therapy: Chronic Respiratory Disease Questionnaire (CRQ)

In the dyspnea and mastery domains, only one item was found to lack significant correlation over time. However, correlations between the CRQ and other specific measures of pulmonary disease were found to be significantly higher than correlations with generic measures. Assessing the minimal important differences in symptoms: For Clinical Trial and Observational Study use, please fill out our request form from our website: In fact, Guyatt et al 20 demonstrated that the dyspnea domain of the CRQ was the only HRQL instrument that showed statistically significant responsiveness when tested over 2 known interventions in reducing dyspnea in day-to-day activities.

When less responsive tools are used, it is likely that the treatment effects can be underestimated. Comparison of discriminative properties among disease-specific questionnaires for measuring health-related quality of life in patients with chronic obstructive pulmonary disease.

Questoonnaire 10 determined that significant correlations exist between the CRQ fatigue domain and the depression and somatisation domain of the Symptom Checklist 90 SCL Validity and reliability of a quality-of-life instrument: This validated and reliable tool is widely used to measure health related quality of life in patients with chronic airflow limitations.

This property can also aid researchers when gathering resources to conduct studies by enabling them to calculate appropriate sample sizes. A randomized trial to evaluate the self-administered standardized chronic respiratory questionnaire. This may be a factor to consider when administering the CRQ. The CRQ was developed to assess quality of life in patients with chronic respiratory disease, including COPD of longer than 3 months and other disease processes that lead to chronic airflow limitations.

A mean change per question of 0. Important considerations for questionnaires such as CRQ include the ease and cost of administration. They chroni the questionnaire 6 times in a 2-week interval to 25 patients with stable COPD. Physiologic factors that determine the chrpnic quality of life in patients with COPD. In both studies, the CRQ was used to evaluate patients who were predicted to improve with initiation or modification of treatment. The CRQ scores also follow predicted tracts and correlate well with clinical status.


In the first assessment, the tool was administered to 13 patients all diagnosed with chronic lung disease and the patients were then reassessed 2 to 6 weeks later after treatment had been initiated. Respiratoory resulting questionnaire contains 20 items that are believed to represent areas of dysfunction that are most significant to this patient population.

The self-administered version may assist with the latter as it is associated with greatly decreased administration time. They found that mean scores were similar in all 4 domains over all administrations, and there did not appear to be a tendency for either improvement or decline.

Because respiratorj might be of highest priority for some users of the CRQ, a version was quesstionnaire that is self-administered but includes individualized dyspnea questions. Establishing the minimal number of items for a responsive, valid, healthrelated quality of life instrument.

The researchers estimated that on average, scores on the CRQ needed to change by about 0. Foundations of Clinical Research: The evidence has shown the CRQ to be a valid test of HRQL, with moderate to strong correlations with global ratings as well as both generic and disease specific convergent measures.

The CRQ is available in four different formats approximate time needed for the first administration: The limited availability of literature regarding intra-rater and inter-rater reliability indicates the need for further research in these areas.

It has high internal consistency and test-retest reliability, as well as questionnarie to strong construct and convergent validity. In order for a test to be useful in the clinic, the instrument must be consistent in its measurements. Also, in this specific patient population, improvements in breathlessness or exercise tolerance may not be noticed since these patients are accustomed to avoiding activities that stimulate these symptoms.