C Yu1, M Chen1, Z Chen2, G Lu3. 1. Department of Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, No197 Ruijin Er Road, 200025, Shanghai, China. 2. Department of Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, No197 Ruijin Er Road, 200025, Shanghai, China. zhenyue1224@yahoo.com. 3. Department of Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, No197 Ruijin Er Road, 200025, Shanghai, China. drluguoping@163.com.
Abstract
BACKGROUND AND AIM: The aim of this study was to examine the association between the admission neutrophil-to-lymphocyte ratio (N/L ratio) with coronary heart disease (CHD), separately from acute coronary syndrome (ACS) and stable angina (SA). A further aim was to investigate the clinical value of the N/L ratio in predicting in-hospital CHD events and the long-term prognosis of patients with CHD. PATIENTS AND METHODS: In all, 942 patients were enrolled and classified into a CHD group (comprising an ACS group and an SA group) and a normal group. Laboratory data including regular blood test results were obtained at baseline. The relationship between the N/L ratio and CHD, ACS, Gensini score, and multivessel lesions was analyzed by logistic regression. Receiver operating characteristics (ROC) curve analysis was used to identify the value of the N/L ratio in the diagnosis of CHD, ACS, and the severity of CHD. We divided the patients into four groups according to the N/L ratio quartiles and compared the differences in major adverse cardiac events (MACEs) that occurred in hospital and in the 4.26 ± 0.57-year follow-up out of hospital. RESULTS: Patients with an elevated N/L ratio had a significantly increased risk of CHD [odds ratio (OR) = 1.697, 95 % confidence interval (CI) = 1.483-1.942], and an elevated N/L ratio was closely related to a higher risk of ACS (OR = 1.652, 95 % CI = 1.434-1.902). The admission N/L ratio (0.664; 95 % CI = 1.942-1.616) showed a greater ROC area than the WBC and LDL-C values. Patients with a higher N/L ratio in both the SA group and the ACS group had a higher incidence of in-hospital and out-of-hospital MACEs, including long-term mortality and occurrence of new-onset heart failure or re-occurrence of heart failure. An elevated N/L ratio on admission was also found to be a significant indicator of 4.26-year MACEs. CONCLUSION: The admission N/L ratio was significantly associated with CHD and may become a risk predictor in the prognosis of patients with CHD.
BACKGROUND AND AIM: The aim of this study was to examine the association between the admission neutrophil-to-lymphocyte ratio (N/L ratio) with coronary heart disease (CHD), separately from acute coronary syndrome (ACS) and stable angina (SA). A further aim was to investigate the clinical value of the N/L ratio in predicting in-hospital CHD events and the long-term prognosis of patients with CHD. PATIENTS AND METHODS: In all, 942 patients were enrolled and classified into a CHD group (comprising an ACS group and an SA group) and a normal group. Laboratory data including regular blood test results were obtained at baseline. The relationship between the N/L ratio and CHD, ACS, Gensini score, and multivessel lesions was analyzed by logistic regression. Receiver operating characteristics (ROC) curve analysis was used to identify the value of the N/L ratio in the diagnosis of CHD, ACS, and the severity of CHD. We divided the patients into four groups according to the N/L ratio quartiles and compared the differences in major adverse cardiac events (MACEs) that occurred in hospital and in the 4.26 ± 0.57-year follow-up out of hospital. RESULTS:Patients with an elevated N/L ratio had a significantly increased risk of CHD [odds ratio (OR) = 1.697, 95 % confidence interval (CI) = 1.483-1.942], and an elevated N/L ratio was closely related to a higher risk of ACS (OR = 1.652, 95 % CI = 1.434-1.902). The admission N/L ratio (0.664; 95 % CI = 1.942-1.616) showed a greater ROC area than the WBC and LDL-C values. Patients with a higher N/L ratio in both the SA group and the ACS group had a higher incidence of in-hospital and out-of-hospital MACEs, including long-term mortality and occurrence of new-onset heart failure or re-occurrence of heart failure. An elevated N/L ratio on admission was also found to be a significant indicator of 4.26-year MACEs. CONCLUSION: The admission N/L ratio was significantly associated with CHD and may become a risk predictor in the prognosis of patients with CHD.
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