Table 1.
Demographic, Respiratory, and Sleep Apnea Characteristics of the Studied Population
| Age, y | 50±15.3 |
| Male sex % | 83.6 |
| BMI, kg/m2 | 31.5±6.2 |
| CCI | 1±1.6 |
| ESS | 9.1±7.2 |
| Current smokers, % | 39.5 |
| Hypertensive, % | 37.6 |
| FEV1, % | 92.2±34.9 |
| FVC, % | 92.7±16.3 |
| FEV1/FVC | 80.7±7.1 |
| Daytime SaO2, % | 97.1±1.8 |
| Mean SaO2, % | 88.7±5.5 |
| Minimum SaO2, % | 78.2±11.6 |
| REM mean SaO2, % | 91.4±6.1 |
| NREM mean SaO2, % | 93.1±23.4 |
| DI | 35.7±31 |
| AHI | 32±28.2 |
| AI | 36.8±28.9 |
Abbreviations: AHI, apnea‐hypopnea index; AI, arousal index; BMI, body mass index; CCI, Charlson Comorbidity Index; daytime SaO2, daytime mean oxygen saturation; DI, desaturation index; ESS, Epworth Sleepiness Scale; FEV1, forced expiratory volume in 1 second; FVC, forced vital capacity; mean SaO2, mean oxygen saturation during respiratory events; minimum SaO2, minimum oxygen saturation during sleep; NREM mean SaO2, mean oxygen saturation during non‐rapid eye movement sleep; REM mean SaO2, mean oxygen saturation during rapid eye movement. Continuous variables are presented as mean±standard deviation and discrete variables as percentages.