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KMID : 1102220240430030381
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Kidney Research and Clinical Practice
2024 Volume.43 No. 3 p.381 ~ p.390
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Triglyceride-glucose index is an independent predictor of coronary artery calcification progression in patients with chronic kidney disease
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Ko Ye-Eun
Kim Hyung-Woo
Park Jung-Tak
Han Seung-Hyeok
Kang Shin-Wook
Sung Su-Ah
Lee Kyu-Beck
Lee Joong-Yub
Oh Kook-Hwan
Yoo Tae-Hyun
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Abstract
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Background: Coronary artery calcification (CAC) is highly prevalent in patients with chronic kidney disease (CKD) and is associated with major adverse cardiovascular events and metabolic disturbances. The triglyceride-glucose index (TyGI), a novel surrogate marker of metabolic syndrome and insulin resistance, is associated with CAC in the general population and in patients with diabetes. This study investigated the association between the TyGI and CAC progression in patients with CKD, which is unknown.
Methods: A total of 1,154 patients with CKD (grades 1?5; age, 52.8 ± 11.9 years; male, 688 [59.6%]) were enrolled from the KNOWCKD (KoreaN Cohort Study for Outcomes in Patients With Chronic Kidney Disease). The TyGI was calculated as follows: ln (fasting triglycerides × fasting glucose/2). Patients were classified into tertiles (low, intermediate, high) based on the TyGI. The primary outcome was annualized percentage change in CAC score [(percent change in CAC score + 1)12/follow-up months ? 1] of ≥15%, defined as CAC progression.
Results: During the 4-year follow-up, the percentage of patients with CAC progression increased across TyGI groups (28.6%, 37.5%, and 46.2% in low, intermediate, and high groups, respectively; p < 0.001). A high TyGI was associated with an increased risk of CAC progression (odds ratio [OR], 2.11; 95% confidence interval [CI], 1.14?3.88; p = 0.02) compared to the low group. Moreover, a 1-point increase in the TyGI was related to increased risk of CAC progression (OR, 1.55; 95% CI, 1.06?1.76; p = 0.02) after adjustment.
Conclusion: A high TyGI may be a useful predictor of CAC progression in CKD.
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KEYWORD
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Cardiovascular disease, Chronic, Coronary artery calcification, Renal insufficiency, Insulin resistance, Triglyceride-glucose index
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