Association of reticulocyte-related indices with metabolic syndrome and its components: Evidence from the China National Health Survey

Diabetes Res Clin PractPublished Cross-sectional study

Authors' conclusion

This study identifies reticulocyte indices, particularly RET#, RET%, and IRF, as strongly associated with MetS, highlighting their potential utility in early screening and personalized risk stratification. These findings provide new insights into the role of erythropoiesis in metabolic health. Further longitudinal research is needed to elucidate the underlying mechanisms and validate the clinical applications of reticulocyte indices in managing MetS.

Study context

Population
Chinese adults aged 18 years and older, China National Health Survey
Participants
6,098 adults
Exposure
Highest vs lowest quartile of reticulocyte-related indices
Outcome
Metabolic syndrome (MetS)
Methodological detailsmultivariable logistic regression, restricted cubic spline regression, mediation analysis
  • Multivariable logistic regression
  • Restricted cubic spline regression
  • Mediation analysis

Main finding

As reported in the abstract

MetS, highest vs lowest quartile (adjusted OR)
Highest quartile vs Lowest quartileEstimate (95% CI)
MetS, highestvs lowest quartile (adjusted OR)
aOR, RET# 5.45(4.56–6.51)
MetS, highestvs lowest quartile (adjusted OR)
aOR, RET% 4.09(3.44–4.85)
MetS, highestvs lowest quartile (adjusted OR)
aOR, IRF 2.97(2.51–3.52)
MetS, highestvs lowest quartile (adjusted OR)
aOR, MFR 2.23(1.89–2.63)
MetS, highestvs lowest quartile (adjusted OR)
aOR, HFR 3.54(2.99–4.21)
MetS, highestvs lowest quartile (adjusted OR)
aOR, RPI 4.19(3.53–4.98)
Protective association
aOR, LFR 0.33(0.28–0.40)

Observational data: associations, not effects.

Further findings

Reticulocyte hemoglobin equivalent (RET-HE) and metabolic syndrome (MetS) components

RET-HE significantly associated with low HDL-C and high waist circumference

Subgroups

Stronger associations among younger individuals, males and those without obesity

Dose-response (restricted cubic spline (RCS))

Nonlinear relationships between various reticulocyte-related indices and MetS

Mediation by inflammation

Inflammation partially mediated the associations between reticulocyte-related indices and MetS

Original publication

Association of reticulocyte-related indices with metabolic syndrome and its components: Evidence from the China National Health Survey. Diabetes Res Clin Pract. Published 23 September 2025. doi:10.1016/j.diabres.2025.112917

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