Abstract
Aim:Chronic obstructive pulmonary disease is a completely irreversible obstructive airway disease. The COPD assessment test (CAT) is one of the standard methods for the clinical assessment of the disease, which is translated into Persian. This study investigated the reliability of the test and its relationship with the severity of the disease.Methods:In this cross-sectional study, 120 patients filled out the Persian transcript of the test. After two weeks, the patients filled out the CAT test again. Obstruction severity was determined for all the patients using spirometry, and the patients were categorized into four groups according to the Global Initiative for Chronic Obstructive Lung Disease criteria. The relationship between the test scores and the disease severity wan validated.Results:The mean age of the patients was 51.5 years. The Cronbach’s alpha coefficient of the Persian transcript of the test was 0.872 in the first time, and 0.885 in the second time. Intragroup reliability, test re-test and intragroup correlations were significant for all the questions (<0.001). The relationship between the test mean score and obstruction severity was significant, and the correlation between disease categorization in accordance with obstruction severity and categorization according to the test score was significant as well.Conclusion:The Persian transcript of the assessment test for COPD was reliable and is directly related to the disease severity according to airflow limitation.
Highlights
Chronic obstructive pulmonary diseases (COPDs) are the most common diseases in the community and one of the main causes of morbidity and mortality in the elderly (Andreoil et al, 2007)
The relationship between the test mean score and obstruction severity was significant, and the correlation between disease categorization in accordance with obstruction severity and categorization according to the test score was significant as well
The Persian transcript of the assessment test for COPD was reliable and is directly related to the disease severity according to airflow limitation
Summary
Chronic obstructive pulmonary diseases (COPDs) are the most common diseases in the community and one of the main causes of morbidity and mortality in the elderly (Andreoil et al, 2007). COPD diseases, including emphysema, chronic bronchitis, bronchiolitis and chronic lung disease, are common clinical, radiographic, and physiologic protests, and are more often found in patients simultaneously (Andreoil et al, 2007; Wedzicha, 2011; Valero et al, 2009). The most effective way is using a short questionnaire that is fast, reliable and standardized In this context, researchers have designed patient-based questionnaires to assess the symptoms and the patient's health status.
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