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Relationship among individual lipid indicators, dyslipidemia risk stratification, and bone mineral density of old males

WU Meng-meng, CHEN Zhi-guo, LU Jin-hua, WANG Jing, JIN Xian   

  1. Department of Geriatrics, Renjin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
  • Online:2014-06-28 Published:2014-06-30

Abstract:

Objective To investigate the relationship among individual lipid indicators, dyslipidemia risk stratification, and bone mineral density (BMD) of old males. Methods A total of 247 old physical examinees were divided into the normal lipid group (n=84) and abnormal lipid group (n=163). The latter was further divided into the low risk group, medium risk group, and high risk group. The BMD T-score was measured by the quantitative ultrasound (QUS). Subjects were divided into the normal bone mass group and bone loss group according to the results of measurements. The relationship among individual lipid indicators, dyslipidemia risk stratification, and
bone mineral density was analyzed. Results For individual lipid indicators, the incidences of osteopenia of subjects with high cholesterol and LDL-C were 73.8% and 73.5%, which were significantly higher than those of subjects with normal cholesterol and LDL-C (P<0.01). The differences of individual lipid indicators of three subgroups of the abnormal lipid group were not statistically significant. The incidences of osteopenia of the low risk group, medium risk group, and high risk group gradually rose, i.e. 41.7%, 67.2%, and 79.4%, respectively. The differences were statistically significant (P<0.01). The results of correlation analysis showed that the TC, LDL-C, and lipid risk stratification were positively correlated with the incidence of osteopenia (r=0.153,P=0.016; r=0.171,P=0.007). The lipid risk stratification was significantly and negatively correlated with BMD T-score (r=-0.301, P<0.01). After age, BMI, and exercise habits were corrected, the lipid risk stratification was still significantly and negatively correlated with BMD T-score (r=-0.259, P<0.01). Conclusion Individual lipid indicators of TC and LDL-C may relate to the incidence of osteopenia. Compared to individual lipid indicators, the lipid risk stratification relate to BMD T-score more closely and can better predict the risk of osteopenia.

Key words: bone mineral density, dyslipidemia risk stratification, elderly men