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.

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Guyatt et al 2 found that the CRQ has similar responsiveness to the Transitional Dyspnea Index and superior responsiveness to the Rand dyspnea questionnaire, the oxygen cost diagram, and the Rand physical and emotional function questionnaires.

Limitations to its use in the clinic might include respiratogy and the time required for administration. It is known that mortality risk is not associated with the CRQ, 30 however, CRQ change scores associated with clinically important differences may be used to highlight significant changes in function and HRQL. Comparison of outcome measures for patients with chronic obstructive pulmonary disease COPD in an outpatient setting.

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

The 3 studies included: For Clinical Trial and Observational Study use, please fill out our questionnairs form from our website: A comparison of three disease-specific and two generic health-status measures to evaluate the outcome of pulmonary rehabilitation in COPD.

This property can also aid researchers when gathering resources to conduct studies by enabling them to calculate appropriate sample sizes. The PCPs assessed the patients at baseline and at all follow-up visits throughout the year.

When all 4 of the domains were included, the MCID was 0. There is currently no chronc standard for determining HRQL, 20 so the validity of the CRQ has been assessed primarily through construct and convergent validity. Comparison of discriminative properties among disease-specific questionnaires for measuring health-related quality of life in patients with chronic obstructive pulmonary disease.

Construct validity was maximized during the original development of the questionnaire by using a multistep process to determine and incorporate the significant vhronic of HRQL that are affected by pulmonary disease. The original version fhronic the CRQ was developed in by Guyatt et al questtionnaire and followed Kirshner and Guyatt’s 7 principles of questionnaire development. Because responsiveness might respuratory of highest priority for some users of the CRQ, a version was developed that is self-administered but includes individualized dyspnea questions.


Qufstionnaire CRQ are validated and reliable quality of life measures for patients with chronic airflow limitations. Support Center Support Center. The self-administered questionnaire is also reported to have high reliability. Pearson correlation coefficients were used to determine consistency over time of both individual item scores and domain total scores. Harper et al 13 also examined CRQ measurements in clinically stable patients over time. Twenty-eight patients with chronic lung disease received initial and follow-up questionnaires 2 weeks later after treatment had been ceq.

In order to ensure that reliability across clinics is preserved, the health care profession should come to an agreement on the process of administration. He also found that the MCID correlated with a change of 0. Validity and reliability of a quality-of-life instrument: A randomized trial to questionhaire the self-administered standardized chronic respiratory questionnaire.

All questions were pretested to finalize structure and wording. One hundred twelve patients participated in the study. List per page or see all. This indicates that the CRQ was able to detect the change in patient condition that occurred with treatment.

This article has been cited by other articles in PMC. Other applications, please complete the request form at http: Wyrwich et al 15 used triangulation methods to identify clinically important differences based on both patient and primary care provider PCP perceived differences.

Available literature has repeatedly illustrated the ability of the CRQ to generate results that are reproducible in a variety of settings. Guyatt et al 21 determined that the CRQ dyspnea domain had a correlation of crhonic. Again, considerable improvements in the scores were seen in all domains of the original version.

The instrument consists of 20 questions scored on a 7-point Likert-type scale in four domains: There was good agreement between the predicted and actual quetionnaire in both these cases. The original CRQ also included a section with individualized questions about dyspnea.

This paper describes the current research regarding the reliability, validity, responsiveness, minimally clinical important difference, and suggested use of the Chronic Respiratory Disease Questionnaire in clinical practice.

CRQ – Chronic Respiratory Disease Questionnaire

When less responsive tools are used, it is likely that the treatment effects can be underestimated. The CRQ requires a licensing agreement as well as a significant time commitment for administration. Six minute walk test scores, however, were found to be only weakly correlated with all domains of the CRQ.


It is recommended that both general and condition specific HRQL questionnaires be administered alongside physiologic tests since each of these contribute unique information regarding quewtionnaire state and quality of life.

In the clinic, it is not only necessary to measure outcomes of treatment regarding the intervention process, but it is also essential to measure the extent to which the patient feels the treatment has influenced their condition and quality of life. Rutten-Van Molken et al 3 completed a study to determine the MCID using both methods of between patient comparison and within patient comparison.

Test-retest reliability of the CRQ has been found to be high. Respirarory validated and reliable tool is widely used to measure health qestionnaire quality of life in patients with chronic airflow limitations. hcronic

Results of the study reflected a disagreement between patients, primary care physicians, and experts’ opinions of clinically important change in individual patients. 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.

Initial testing of reproducibility, responsiveness, and validity was also completed. A mean change per question of 0.

Chronic Respiratory Disease Questionnaire-CRQ

qkestionnaire Puhan et al 12 used standardized response means SRMs to assess the responsiveness of the CRQ opposed to the t-test because it is independent of sample size. Fatigue domain scores also improved as shuttle walk test scores improved. Health Qual Life Outcomes and has been widely used. In the fatigue domain, which was not reliable as a whole, 3 of the 4 individual items showed insignificant correlation.

Individual item scores were examined using the Kendall tau correlation coefficient. The researchers estimated that on average, qkestionnaire on the CRQ needed to change by about 0.