In the study, the results seem conflicting. Almost all parameters evaluated (mean BMI, D-dimer, FEV1/FVC, baseline arterial oxygen saturation, and Epworth Sleepiness Scale) were mild to moderate in severity. In addition, there was no significant difference in these parameters between groups in patients with an AHI ≥ 10. Thus, how could arterial oxygen saturation, D-dimer, and ESS be independent risk factors? Further clinical prospective clinical trials are needed to confirm these associations.