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Association of the Atherogenic Index of Plasma and Modified Triglyceride-glucose Indices with Digestive Diseases Among Middle-aged and Older Population in China

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Publisher Biomed Central
Date 2024 Nov 30
PMID 39616367
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Abstract

Background: Previous studies have shown that metabolic imbalances contribute to digestive diseases. This study aimed to investigate the relationship of the atherogenic index of plasma (AIP) and modified triglyceride-glucose (TyG) indices with digestive diseases.

Methods: We recruited participants aged 45 years or older from the China Health and Retirement Longitudinal Study (CHARLS, 2011 - 2020). The indices assessed included AIP, TyG, triacylglycerol glucose-waist circumference (TyG-WC), the triacylglycerol glucose-waist-to-height ratio (TyG-WHtR), and the triacylglycerol glucose-body mass index (TyG-BMI). We used logistic regression and restricted cubic spline (RCS) analyses to examine the associations between these indices and the incidence of digestive diseases.

Results: A total of 4,453 participants were included in our analysis, 53.3% of whom were female, with an average age of 60 years. The incidence of digestive diseases in middle-aged and older adults was 6.18%. Compared with those in the lowest tertile group, the odds ratios (ORs) with 95% confidence intervals (CIs) for digestive diseases in the highest tertile for AIP, TyG, TyG-WC, TyG-WHtR, and TyG-BMI were 1.452 (1.07-1.972), 1.193 (0.873-1.631), 1.349 (1.044-1.743), 1.5 (1.089-2.068), and 1.312 (0.956-1.799), respectively. Sensitivity analyses confirmed the robustness of the correlations between these indices and digestive diseases.

Conclusion: Our study revealed that the AIP, TyG-WC, and TyG-WHtR were independently associated with the incidence of digestive diseases. These findings highlight the importance of considering and optimizing metabolic factors in management strategies for digestive diseases.

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