Abstract
Objective
The triglyceride glucose (TyG) index and obesity are significantly closely related to the incidence of nonalcoholic fatty liver disease (NAFLD). The study aimed to investigate the relationship among the TyG index and its related parameters [TyG-waist circumference (WC) and TyG-body mass index (BMI)] with NAFLD.
Methods
This was a cross-sectional study involving 8401 subjects who underwent a health examination in Karamay, Xinjiang Province, China. TyG, TyG-WC, TyG-BMI were calculated with the established formula. NAFLD was diagnosed and classified by ultrasonography.
Results
The prevalence of NAFLD was markedly increased with increasing levels of TyG, TyG-WC and TyG-BMI. Logistic regression analysis suggested that WC, BMI, TyG, TyG-WC and TyG-BMI were independent risk factors for NAFLD. In receiver operating characteristic (ROC) analysis, TyG-BMI showed the largest area under the ROC curve (AUC) for the detection of NAFLD (0.856, 95% confidence interval: 0.848 ~ 0.865), and the results of sex analysis were consistent. TyG-BMI values of 176.69 (sensitivity: 86.9%, specificity: 68.1%), 193.02 (sensitivity: 73.8%, specificity: 73.6%) and 167.73 (sensitivity: 86.3%, specificity: 74.4%) were the optimal cutoff points to predict NAFLD in all participants, males and females, respectively.
Conclusions
This study demonstrated that TyG and its related parameters are significantly correlated with NAFLD. TyG-BMI is an effective predictor or clinical marker for identifying NAFLD.
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Data availability
The data for the current study used for statistical analysis are available from the corresponding author upon reasonable justification.
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Acknowledgments
We thank all the doctors and nurses at the Department of Health Management Center and Department of Ultrasound Imaging (People’s Hospital of Karamay) who participated in this study.
Funding
This research was financed by the National Key Research and Development Program of China (2018YFC1311801).
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DL, HT and NL designed the study. DL drafted this manuscript. DL, SW, MZ, CX, HT and NL participated in the data collection and analysis. HT, NL and SW reviewed and revised this manuscript. All authors have read and agreed to the published version of the manuscript.
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The clinical study was approved by the Ethics Committee of Karamay People’s Hospital, Xinjiang Second Medical College. The research protocol was implemented according to the principles expressed in the World Medical Association Declaration of Helsinki and under the International Ethical Guidelines for Biomedical Research Involving Subjects (GIOMS, Geneva, 1993). Informed consent was obtained from all subjects.
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Li, D., Wu, S., Zhang, M. et al. Correlation between triglyceride-glucose index and related parameters and nonalcoholic fatty liver disease in northwest China. Int J Diabetes Dev Ctries (2023). https://doi.org/10.1007/s13410-023-01255-8
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DOI: https://doi.org/10.1007/s13410-023-01255-8