Patients
OSA patients entering, during the year 2016, the Ambulatory of Sleep Disorders of the Institute of Respiratory Diseases of the University of Bari were retrospectively evaluated. In enrolled subjects, we recorded anthropometric features, smoking habits, Pulmonary Function Test, polysomnographic findings, data from Arterial Blood Gas Analysis.
Daytime sleepiness was measured by the Epworth Questionnaire, and the death risk linked with comorbidities was assessed by the Charlson Co-morbidities Index (CCI). The 10-year risk of heart disease or stroke was calculated using the ASCVD algorithm (15).
We measured body weight (kg), height (m) and calculated BMI, i.e., Quetelet’s index as kilograms divided by meter squared (kg/m2). BMI ranging from 18.5 to 24.9 kg/m2 defined normal weight subjects. A BMI ranging from 25.0 to 29.9 kg/m2 defined overweight subjects, while a BMI ≥30 kg/m2 defined patients with obesity.