Atherogenic markers and 1-year amputation risk in adults with diabetic foot in a tertiary level hospital: A retrospective cohort study

Aim: To determine the association between atherogenic markers, such as total cholesterol/high density lipoprotein cholesterol ratio (TC/HDL-C), triglycerides/HDL-C ratio (TG/HDL-C), and triglycerides-glucose index (TyG), and the risk of 1-year amputation in adults with diabetic foot in a tertiary level hospital. Methods: Retrospective cohort study conducted in 162 adult patients with diabetic foot. The outcome was amputation, defined as “primary amputation in patients' clinical history after their first hospitalization due to foot ulcer.”. The cutoff point was determined using Youden's J statistic. The relative risk (RR) was presented as an association measure. Results: A TyG index of >9.4 [RR: 1.64 (1.10–2.45)] was associated with a high risk of amputation after 1-year in adults with diabetic foot. However, while a TC/HDL ratio of >4.69 [RR: 1.38 (0.94–2.03)] and a TG/HDL-C ratio > 3.57 [RR: 1.35 (0.89–2.06)] did not show associations with risk of amputation after 1-year. Conclusions: Only a TyG index of >9.4 was associated with an increased risk of 1-year amputation in adults with diabetic foot. Future studies with larger samples and a longitudinal design may provide more robust evidence and a better understanding of clinical implications.