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Chronic Obstructive Pulmonary Disease (COPD) is a long-lasting respiratory condition requiring continuous attention and care. It is a progressive lung disease that leads to breathing challenges due to airflow obstruction. It manifests as persistent respiratory symptoms and restricted airflow resulting from abnormalities in the airways and alveoli, usually due to long-term exposure to harmful particles or gases. COPD mainly consists of two primary conditions: emphysema and chronic bronchitis.
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Related Experiment Video

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Evaluating the Clinical COPD Questionnaire: A systematic review.

Zijing Zhou1, Aiyuan Zhou1, Yiyang Zhao1

  • 1Department of Respiratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, China.

Respirology (Carlton, Vic.)
|January 20, 2017
PubMed
Summary
This summary is machine-generated.

The Clinical COPD Questionnaire (CCQ) reliably measures health status in COPD patients. It demonstrates good validity and responsiveness to interventions like pulmonary rehabilitation and smoking cessation.

Keywords:
Clinical Chronic Obstructive Pulmonary Disease Questionnairechronic obstructive pulmonary diseasepsychometric propertiessymptom assessment

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Area of Science:

  • Pulmonary Medicine
  • Health Outcomes Research

Background:

  • The Clinical COPD Questionnaire (CCQ) is recommended by the Global Initiative for Chronic Obstructive Lung Disease (GOLD) for assessing health status in Chronic Obstructive Pulmonary Disease (COPD) patients.
  • Systematic evaluation of the CCQ's psychometric properties is crucial for its clinical application.

Purpose of the Study:

  • To systematically assess the reliability, validity, and responsiveness of the Clinical COPD Questionnaire (CCQ).
  • To determine the minimum clinically important difference (MCID) for the CCQ.

Main Methods:

  • A systematic literature search was conducted across three databases to identify studies evaluating CCQ psychometric properties in COPD patients.
  • Data extraction and quality assessment using the COSMIN checklist were performed by two independent investigators.
  • Forty-three studies were included in the final analysis.

Main Results:

  • Internal consistency (0.84-0.94) and test-retest reliability (0.70-0.99) of the CCQ were high.
  • The CCQ demonstrated strong correlations with the St George's Respiratory Questionnaire (SGRQ) and COPD Assessment Test (CAT).
  • The CCQ showed sensitivity to changes from exacerbations, pulmonary rehabilitation, and smoking cessation, with an MCID of 0.4.

Conclusions:

  • The Clinical COPD Questionnaire (CCQ) is a reliable, valid, and responsive tool for evaluating health status in COPD patients.
  • Its practical nature and robust psychometric properties support its use in diverse clinical settings.
  • The CCQ aids in monitoring treatment effectiveness and patient progress in COPD management.