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    Sleep quality in COPD patients: correlation with disease severity and health status

    J. bras. pneumol; 48 (3), 2022
    To evaluate clinical predictors of poor sleep quality in COPD patients with and without obstructive sleep apnea (OSA). Methods: Consecutive stable patients with COPD were evaluated for OSA by means of overnight polysomnography; for sleep quality by means of the Pittsburgh Sleep Quality Index (PSQI); and...