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INTRODUCTIONChronic obstructive pulmonary disease (COPD) is a significant and increasing cause of morbidity and mortality worldwide.According to World Health Organization data, COPD caused the death of 3.17 million people in 2015 and was the cause of 5% of all deaths. 1 According to the Turkish Chronic Diseases and Risk Factors Study, the prevalence of COPD in Türkiye is 5.3%. 2 According to 2017 data from the Turkish Statistical Institute (TURKSTAT), chronic respiratory system diseases are in third place among diseases that are the cause of death. 3In the Turkish Republic of North Cyprus, there are insufficient records and spirometric measurements, so there are no studies or official data.COPD causes patients to experience a series of physically and psychologically disturbing symptoms.As the disease progresses, patients experience changes in both functional and cognitive performance. 4The clearest physical signs of COPD are shortness of breath, coughing, and
Çayırcı et al. (Thu,) studied this question.