Association between triglyceride glucose and acute kidney injury in patients with acute myocardial infarction: a propensity score‑matched analysis

Acute kidney injury (AKI) in patients with acute myocardial infarction (AMI) often indicates a poor prognosis. This study aimed to investigate the association between the TyG index and the risk of AKI in patients with AMI. Data were taken from the Medical Information Mart for Intensive Care (MIMIC) database. A 1:3 propensity score (PS) was set to match patients in the AKI and non-AKI groups. Multivariate logistic regression analysis, restricted cubic spline (RCS) regression and subgroup analysis were performed to assess the association between TyG index and AKI. Totally, 1831 AMI patients were included, of which 302 (15.6