Correlation between serum non-high density lipoprotein cholesterol and bone mass levels in different body parts in physical examination population / 中华健康管理学杂志

ABSTRACT

Objective:To compare the relationship between non-high-density lipoprotein cholesterol (non-HDL-C) and bone mass in different body parts in the physical examination population.Methods:It was a cross-sectional study. The data of 595 physical examiners who visited the Institute of Health Management, PLA General Hospital from June to September 2016 were retrospectively analyzed. The bone mass levels of lumbar 1-4 vertebral body (spine) and femur, average bone density were measured by double light energy X-ray bone density instrument. The basic information and biochemical indices of the physical examiners were collected. The difference between blood lipid components (including Non-HDL-C) and bone mass level of each body part were analyzed.Results:According to blood lipid stratification, there were significant differences in spine T value (T-spine) between triglyceride (TG) groups (-0.15±1.41 vs -0.38±1.3), Non-HDL-C groups (-1.01±0.74 vs -1.21±0.59, -1.04±0.73 vs -1.30±0.45,-1.07±0.71 vs -1.30±0.26) and low-density lipoprotein cholesterol (LDL-C) groups (-1.01±0.71 vs -1.32±0.56)(all P<0.05). There was no statistically significant difference in other lipid groups and femoral T values in each component′s blood lipids. The T-spine decreased significantly in the LDL-C≥3.4 mmol/L group, and the differences were all significant among the Non-HDL-C group (all P<0.05). In binary logistic regression analysis, LDL-C≥3.4 mmol/L ( OR=3.961,95% CI1.310-11.974) and Non-HDL-C>4.1 mmol/L ( OR=3.600,95% CI1.035-12.524) were risk factors for vertebral bone mass loss (both P<0.05). Conclusion:People with elevated serum TG, Non-HDL-C and LDL-C in the physical examination population are prone to bone abnormalities. Non-HDL-C≥4.1 mmol/L and LDL-C≥3.4 mmol/L are more closely related to the vertebral bone mass loss and are the risk factors for vertebral bone mass loss.