Clinical Focus ›› 2024, Vol. 39 ›› Issue (10): 901-908.doi: 10.3969/j.issn.1004-583X.2024.10.006

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Association of TyG index and its derivatives with the risk of diabetic kidney disease in patients with type 2 diabetes mellitus

Li Jiawen1, Liu Yanlan2, Li Yaoshuang3, Qiu Huina2, Li Fang2, Wu Fan2, Lin Chenying3, Lin Jingna2()   

  1. 1. Department of Geriatrics, Tianjin Nankai Hospital, Tianjin 300100, China
    2. Department of Endocrinology, Tianjin People's Hospital, Tianjin 300122, China
    3. Graduate School, Tianjin Medical University, Tianjin 300203, China
  • Received:2024-07-24 Online:2024-10-20 Published:2024-10-31
  • Contact: Lin Jingna E-mail:13207628978@163.com

Abstract:

Objective To study the correlation of triglyceride-glucose (TyG) and its derivative index with the risk of diabetic kidney disease (DKD) in patients with type 2 diabetes mellitus (T2DM), and to explore its clinical application value. Methods This was a cross-sectional study including 895 T2DM patients hospitalized in the Endocrinology Department of Tianjin People's Hospital from 2018 to 2022. Patients were divided into DKD group (n=326) and non-DKD group (n=569) according to whether they had DKD or not. The clinical data of the two groups were compared. The correlation of TyG, triglyceride glucose-waist circumference (TyG-WC), triglyceride glucose-body mass index (TyG-BMI), and homeostatic model assessment for insulin resistance (HOMA-IR) with DKD was identified. The interaction of TyG and its derivatives with stratification factors was explored. Results There were significant differences in TyG, TyG-WC, TyG-BMI and HOMA-IR between the two groups (P<0.05). TyG and TyG-WC were independent influencing factors of the risk of DKD before and after adjusting for influencing factors (P<0.05). The prevalence of DKD in T2DM patients increased gradually with the increased TyG, TyG-WC and HOMA-IR (trend test P<0.05). In the T3 subgroup of TyG and TyG-WC, the prevalence of DKD was significantly higher than that of T1 subgroup (P<0.05). At varied levels of TyG, it was an independent risk factor for the risk of DKD before and after adjusting for the influencing factors (P<0.05). Conclusion As an independent risk factor for the risk of DKD, continuous and categorical variables of TyG and its derivatives as well as HOMA-IR stably predict DKD in T2DM patients.

Key words: diabetes mellitus, type 2, diabetic nephropathies, insulin resistance, TyG index

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