sleep disturbances. This study aimed to evaluate the association between COPD severity
criteria with sleep quality. Methods One hundred fifty‐eight patients in Rasul Akram Hospital
of Iran University of Medical Sciences, Tehran, Iran, from April 2019 to March 2021
diagnosed with COPD were examined using the Pittsburgh Sleep Quality Index (PSQI),
COPD Assessment Test (CAT), modified Medical Research Council (mMRC) dyspnoea …