The Monocyte-to-High-Density Lipoprotein Cholesterol Ratio as a Novel Predictor of the Prevalence of Senile Osteoporosis.

Purpose: The prevalence of osteoporosis in elderly individuals is high, and osteoporosis is strongly associated with chronic inflammation. The monocyte-to-high-density lipoprotein ratio (MHR) is acknowledged as a marker for assessing systemic inflammation and oxidative stress, and changes in the MHR are associated with many chronic disease prevalent among the elderly population. This study investigated the relationships between the MHR and the incidence of osteoporosis in older adults, along with its predictive value.

Patients and methods: Data from 563 participants aged ≥70 years were retrospectively analysed. The haematological parameters were evaluated via established methodologies, utilizing fasting blood samples collected from the participants. The absolute monocyte count was used to calculate the MHR (MHR=monocyte/HDL-C). BMD was measured by dual-energy X-ray absorptiometry. The results were evaluated via comparative statistical analyses, Spearman correlation, logistic regression analyses, and receiver operating characteristic (ROC) curve analysis.

Results: The differences in the MHR were statistically significant among the osteoporosis groups (p < 0.001). Spearman correlation analysis revealed a positive correlation between the MHR and BMD. Furthermore, stratifying the sample into four groups on the basis of quartiles of MHR (M1, M2, M3, and M4) revealed a decreased risk of osteoporosis in the highest quartile compared with the lowest quartile (p <0.001). Multiple logistic regression analysis revealed that BMI and the MHR were independent risk factors for osteoporosis. The area under the ROC curve and the cut-off value of the MHR were 0.710 and 0.308(10⁹/mmol), with specificity and sensitivity of 0.599 and 0.735, respectively (95% CI: 0.668~0.752, p < 0.0001).

Conclusion: A low MHR was associated with a greater risk of senile osteoporosis. In clinical practice, the MHR has shown predictive value for senile osteoporosis, contributing to early intervention and treatment of this disease.