Abstract:Aim To explore the potential and independent risk factors associated with dyslipidemia in patients with obstructive sleep apnea syndrome (OSAS), and construct a predictive model for clinical use, with the goal of reducing the risk of dyslipidemia and subsequent cardiovascular events through early identification and intervention of modifiable factors. Methods A retrospective study was conducted on 181 patients diagnosed with OSAS who underwent polysomnography monitoring at the Second Hospital of Shanxi Medical University from January 2022 to March 2023. Among them, there were 76 patients with OSAS alone and 105 patients with OSAS complicated by dyslipidemia. General information, biochemical indicators, and polysomnography monitoring indicators of the patients were collected, and Spearman correlation analysis, univariate and multivariate Logistic regression models were used to analyze the independent risk factors of OSAS patients complicated with dyslipidemia. Results Compared with the OSAS alone group, the OSAS with dyslipidemia group had lower age, higher body mass index (BMI), monocyte count/high density lipoprotein cholesterol ratio (MHR), triglyceride/high density lipoprotein cholesterol ratio (TG/HDLC), low density lipoprotein cholesterol/high density lipoprotein cholesterol ratio (LDLC/HDLC), and triglyceride glucose index (TyG) (P<0.05), while high density lipoprotein cholesterol (HDLC) and non-rapid eye movement stage 2 sleep levels were significantly reduced. Spearman correlation analysis showed that triglyceride (TG) and TG/HDLC were positively correlated with the apnea hypopnea index (AHI) (r=0.205, P=0.006; r=0.210, P=0.005), while HDLC was negatively correlated with AHI (r=-0.169, P=0.024) and positively correlated with non-rapid eye movement stage 2 sleep (r=0.156, P=0.038). Multivariate logistic regression analysis showed that elevated TG/HDLC and MHR were independent risk factors and predictive indicators for OSAS complicated with dyslipidemia (P<0.05). Conclusion High TG/HDLC and high MHR are independent risk factors and predictive indicators for OSAS complicated with dyslipidemia, with strong predictive value, and are of great significance for early prevention of coronary heart disease in OSAS patients.