Why the study?
Monocyte-to-high-density lipoprotein cholesterol ratio (MHR) is a marker of atherosclerosis, but its association with and value for identifying prevalent extensive abdominal aortic calcification remained to be investigated.
Is monocyte-to-high-density lipoprotein cholesterol ratio (MHR) associated with prevalent extensive abdominal aortic calcification?
Is monocyte-to-high-density lipoprotein cholesterol ratio (MHR) associated with prevalent extensive abdominal aortic calcification?
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MHR is linearly associated with prevalent extensive abdominal aortic calcification in females, suggesting its potential value as a simple marker to refine the identification of atherosclerosis in women.
Recent studies have identified monocyte-to-high-density lipoprotein cholesterol ratio (MHR) as a simple marker of atherosclerosis. Abdominal aortic calcification (AAC) is a direct result of vascular atherosclerosis. Our study aims to investigate the association between MHR and the prevalent extensive AAC and assess the value of MHR for identifying prevalent extensive AAC. 2857 subjects (28.07%) from the cross-sectional National Health and Nutrition Examination Survey 2013-2014 were included in our study. AAC was detected through dual-energy x-ray absorptiometry and quantified by Kauppila score. Extensive AAC was identified in 153 (10.44% of 1465) females and 146 (10.49% of 1392) males. With the full adjustment, each SD increase of MHR resulted in an 87.3% additional risk for extensive AAC in females. When dividing into quartiles, the top quartile had a 3.472 times risk of prevalent extensive AAC than the bottom quartile. However, no significant association was observed in males. Furthermore, smooth curve fitting implicated that the significant association was linear in the whole range of MHR among females. Additionally, ROC demonstrated an improvement in the identification of extensive AAC only among females when introducing MHR into established risk factors of atherosclerosis (0.808 vs. 0.864, p < 0.001). Finally, category-free net reclassification index and integrated discrimination index also supported the improvement by MHR in females. Our study revealed a linear association between MHR and prevalent extensive AAC in females. Moreover, our results implicated the potential value of MHR to refine the identification of prevalent extensive AAC in females.
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Niu et al. (2024) studied this question.
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