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Background <p>Sarcopenia is an age-related condition associated with metabolic dysfunction. The composite Glycolipid Metabolism 7 (GLM7) index may help quantify this association.</p> Aim <p>To investigate association between the GLM7 and sarcopenia risk among middle-aged and older adults, and the predictive capability of GLM7.</p> Methods <p>This cross-sectional study analyzed data from the US National Health and Nutrition Examination Survey (NHANES 2011–2018, <i>n</i> = 1,563). Survey-weighted multivariable logistic regression models were employed to assess the association, and restricted cubic splines (RCS) analysis was conducted to examine the dose-response relationship between GLM7 and the risk of sarcopenia. Sensitivity analyses included subgroup analysis, further medication adjustment and complete-case analysis. Predictive performance of GLM7 was evaluated using area under the receiver operating characteristic curve (AUC), and was validated in the China Health and Retirement Longitudinal Study (CHARLS, <i>n</i> = 7,387).</p> Results <p>In NHANES, increase in GLM7 level was associated with higher odds of sarcopenia (fully-adjusted OR = 2.119, 95% CI: 1.319–3.406). A significant positive trend was observed across GLM7 quartiles (<i>P</i> for trend &lt; 0.001). The association remained robust in sensitivity analyses and was significantly modified by sex (<i>P</i> for interaction &lt; 0.001). The GLM7 index showed moderate predictive value in NHANES (test AUC = 0.756) and excellent performance in CHARLS (test AUC = 0.841).</p> Conclusion <p>The GLM7 index is significantly associated with sarcopenia risk and demonstrates consistent predictive ability across diverse populations, suggesting its potential utility for risk screening.</p>

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Association between glycolipid metabolism 7 factors (GLM7) and sarcopenia: insights from NHANES and CHARLS

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月23日

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  • Yan Chen,
  • Yujie Zhang,
  • Wenyu Fan,
  • Jing Gao,
  • Xiaodong Feng

摘要

Background

Sarcopenia is an age-related condition associated with metabolic dysfunction. The composite Glycolipid Metabolism 7 (GLM7) index may help quantify this association.

Aim

To investigate association between the GLM7 and sarcopenia risk among middle-aged and older adults, and the predictive capability of GLM7.

Methods

This cross-sectional study analyzed data from the US National Health and Nutrition Examination Survey (NHANES 2011–2018, n = 1,563). Survey-weighted multivariable logistic regression models were employed to assess the association, and restricted cubic splines (RCS) analysis was conducted to examine the dose-response relationship between GLM7 and the risk of sarcopenia. Sensitivity analyses included subgroup analysis, further medication adjustment and complete-case analysis. Predictive performance of GLM7 was evaluated using area under the receiver operating characteristic curve (AUC), and was validated in the China Health and Retirement Longitudinal Study (CHARLS, n = 7,387).

Results

In NHANES, increase in GLM7 level was associated with higher odds of sarcopenia (fully-adjusted OR = 2.119, 95% CI: 1.319–3.406). A significant positive trend was observed across GLM7 quartiles (P for trend < 0.001). The association remained robust in sensitivity analyses and was significantly modified by sex (P for interaction < 0.001). The GLM7 index showed moderate predictive value in NHANES (test AUC = 0.756) and excellent performance in CHARLS (test AUC = 0.841).

Conclusion

The GLM7 index is significantly associated with sarcopenia risk and demonstrates consistent predictive ability across diverse populations, suggesting its potential utility for risk screening.