Abstract
ABSTRACTObjectives: Cardiometabolic index (CMI) has been recognized as a novel and practical marker for the assessment of cardiometabolic risk as it is independently related to diabetes and atherosclerotic progression. This study tested the hypothesis that CMI represents a risk of ischemic stroke in a general population of rural China.Methods: From July 2012 to August 2013, we examined data from a large cross-sectional study of 11,345 participants (mean age 53.8 years; 60.8% females) who underwent biochemical determinations and anthropometric measurements in rural areas of northeast China. Ischemic stroke was documented as a history of cerebrovascular events and verified by medical record review.Results: The prevalence of ischemic stroke was given to 3.1% of females and 3.2% of males. The cardio-metabolic profile was notably more adverse in ischemic stroke groups, irrespective of gender. A dose-response manner was detected for the prevalence of ischemic stroke, exhibiting a significant increase from the lowest to the highest quartiles of CMI (1.2% to 6.4% in females, P for trend<0.001; 2.3% to 4.3% in males, P for trend = 0.017). In multivariable analysis, for every 1 SD increment in CMI, the probability of ischemic stroke increased by 18% in females and 14% in males, respectively. The odds ratios for ischemic stroke comparing the top versus bottom quartiles of CMI were 2.047 (95%CI: 1.168–3.587) for females and 1.722 (95%CI: 1.019–2.910) for males. According to the area under receiver operating characteristic (AUC), the discrimination power of CMI in predicting ischemic stroke was relatively higher for females (AUC: 0.685) than males (AUC: 0.573).Conclusion: The strong and independent association of CMI with ischemic stroke in females, in comparison with the much lesser degree in males, provides further insight to better stratify by sex in investigations of ischemic stroke and solidly corroborates the potential role of ischemic stroke prevention targeted at CMI.
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