• Chia-Chen Wu, Chia-Hui Wu, Chien-Ho Lee, Tien-Yu Chen, and Cheng-I Cheng.
• Division of Thoracic and Cardiovascular Surgery, Department of Surgery, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung City 833, Taiwan.
• Medicina (Kaunas). 2024 Dec 19; 60 (12).

AbstractThe prognostic value of easily accessible hematologic biomarkers, such as the neutrophil-to-HDL ratio, as well as the monocyte-to-HDL, lymphocyte-to-HDL, and platelet-to-HDL ratios, remains underexplored in patients with established ischemic heart disease (IHD). Community-dwelling adults aged ≥ 20 with established IHD from the National Health and Nutrition Examination Survey (NHANES) 1999-2018 were eligible. Mortality was tracked through linkage to the National Death Index (NDI) until the end of 2019. Cox regressions examined the associations between these hematologic ratios and all-cause mortality. Receiver operating characteristic (ROC) curve analysis assessed the predictive accuracy of these ratios for mortality. A total of 2265 patients were analyzed, with a median follow-up period of 80 months. After adjusting for demographic factors, lifestyle variables, and comorbidities, patients in the highest quartile of the neutrophil/HDL had a significantly increased all-cause mortality risk (aHR = 1.41, 95% CI: 1.13-1.77) compared to those in the lowest quartile. No significant associations were found between the other ratios and mortality. In conclusion, this study found that among the hematologic ratios analyzed, an elevated neutrophil-to-HDL ratio has the strongest potential for mortality risk stratification in community-dwelling patients with ischemic heart disease in the US, offering important guidance for both patients and clinicians.

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