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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The evidence has shown that the Qustionnaire is a valid tool to assess health related quality of life in patients with chronic respiratory disease. The self-administered version may assist with the latter as it is associated with greatly decreased administration time.

The advantage of this version is that there is no requirement for presence of an interviewer during the completion of the questionnaire. It is recommended that both general and condition qquestionnaire HRQL questionnaires be administered alongside physiologic tests since each of these contribute unique information regarding disease state and quality of life.

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

Guyatt’s study illustrates that the CRQ has adequate responsiveness to detect highly significant differences, even within small numbers of subjects. For Clinical Trial and Observational Study use, please fill out our request form from our website: 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.

Test-retest reliability of the CRQ has been found to be high. In today’s medical system, limited resources are available for patient care. ICCs of short term reliability ranged from 0. Subsequent versions of the test have been developed to improve time and ease of administration. When less responsive tools are used, it is likely that the treatment effects can be underestimated. Foundations of Clinical Research: For this reason, it is important to evaluate the outcomes of various interventions to ensure that patients are receiving the most efficient and best available care.

The original CRQ also included a section with individualized questions about dyspnea. The conventional method of determining the MCID relies on the patient’s report as to the degree of change they have experienced in comparison to themselves; whereas, the method by Redelmeier et al 24 requires the patient to report the status of their condition in comparison to other patients with the same condition.


Other useful means of the measure are interpreting studies that show significant findings and improvement of expressing results. The instrument consists of 20 questions scored on a 7-point Likert-type scale in four domains: Knowledge of an outcome measure’s sensitivity to change is crucial.

Reliability, or reproducibility, can be determined in 3 ways: Health Q Life Outcomes. This paper describes the current research regarding the reliability, validity, responsiveness, minimally clinical important difference, and suggested use of the Chronic Respiratory Disease Resppiratory in clinical practice.

Using 2 rounds of the Delphi method, one in person meeting and a repetitive enhancement process for circulating and correcting the final report, they were able to determine the values of change for each domain that would result in a small, moderate, and large MCID.

After their second visit, patients from each study were asked to report global ratings of change in shortness of breath on daily activities, level of fatigue, and emotional status. Patient —assessed health outcomes in chronic lung disease: The CRQ are validated and reliable quality of life measures for patients with chronic airflow limitations.

The Chronic Respiratory Disease Questionnaire has been supported in the evidence to be one of the most optimal instruments to measure HRQL in patients with chronic respiratory disease. Each domain includes 4 to 7 items, with each item graded chroni 7-point Likert scale; item scores within a domain are summated to provide a total score for each domain. This article has been cited by other articles in PMC.

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

The 3 studies included: From these results, the researchers concluded that the CRQ was responsive across all domains for detecting short-term changes.

The CRQ scores also follow predicted tracts and correlate well with clinical status. When all 4 of the domains were included, the MCID was 0. The CRQ is available in four different formats approximate time needed for the first administration: In the dyspnea and mastery domains, only one item was found to lack significant correlation over time. In comparison to the other domains, the dyspnea domain had larger SRMs indicating that this individual dyspnea domain was more responsive than the other domains, and the standardized dyspnea domain was determined to be suestionnaire responsive than the preference-based and generic tools that were also assessed in the study.

The validity of the CRQ is strengthened by the study rrespiratory 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. Georges Respiratory Questionnaire and four other health-related quality of life instruments for patients with chronic lung disease.


A randomized trial to evaluate the self-administered standardized chronic respiratory questionnaire. In general, patient determined clinically important differences were associated with smaller changes in CRQ domain scores than those determined by the expert panel and PCPs. Initial testing of reproducibility, responsiveness, and validity was also completed. List per page or see all.

Other applications, please complete the request form at http: They also found that the baseline scores for the self-reported test were significantly lower chrnic all domains than for the interviewer-administered questionnaire.

Further, Harper et al 13 reported that CRQ scores remained stable over time in clinically stable patients while CRQ scores improved in queetionnaire who were expected to have clinical improvements.

National Center for Biotechnology InformationU. Recently, clinicians and payers are recognizing that physiological measures do not necessarily relate to function, and functional outcomes need to be measured independently.

Six minute walk test scores, however, were found to chrknic only weakly correlated with all domains of the CRQ.

Twenty-eight patients with chronic lung disease received initial and follow-up questionnaires 2 weeks later after treatment had been initiated. There is currently no gold standard for determining HRQL, 20 so the validity of the CRQ has been assessed primarily through construct and convergent validity. These lower baseline scores and greater sensitivity of the self-report questionnaire can be attributed to respirratory fact that patients are qhestionnaire likely to report the severity of the impairment when asked to fill out the questionnaire in private, as opposed to being asked by the interviewer.

Construct questionnaird was maximized during the original development of the questionnaire by using a multistep process to determine and incorporate the significant aspects of HRQL that are affected by pulmonary disease.

In order to ensure that reliability across clinics is preserved, the auestionnaire care profession should come to an agreement on the process of administration. The use of any format of the CRQ does require a license agreement. Important considerations for questionnaires such as CRQ include the ease and cost of administration. Williams et al 26 used standardized response means to assess the sensitivity and also found the CRQ-SR to be highly sensitive across all domains of the questionnaire indicating that it is able to detect changes following a treatment program.