To detect the existence of severe obstructive sleep apnea (OSA) in chronic obstructive pulmonary disease (COPD) patients, which had higher mortality and hospitalization rate, a simplified questionnaire was developed for identifying those COPD patients with severe OSA.~With patient's BMI, neck and waist circumference, snores, witnessed apnea...~Time frame suspect to enroll 5 patients in 1 month and complete 4 patients at least we need 24 months to complete 120 patients
To detect the existence of severe obstructive sleep apnea (OSA) in chronic obstructive pulmonary disease (COPD) patients, which had higher mortality and hospitalization rate, a simplified questionnaire was developed for identifying those COPD patients with severe OSA.