Although many baseline characteristics were comparable between the two cohorts, statistically significant differences (p < 0.05) were observed in several key variables, including physical findings (nasal septum deviation and tonsillar hypertrophy), lifestyle factors (family history of OSA, smoking, and alcohol consumption), anthropometric data (BMI), PSG parameters (sleep efficiency and longest hypopnea time), echocardiographic measurements (LAD, IVSd, and LVPWD), and laboratory markers (SaO2, CRP, HDL‐C, LDL‐C, and UA). This evidence concerns the gene CRP and obstructive sleep apnea syndrome.