In this study, while it was observed that HOMA-IR, TyG and VAI indices, which are widely used in the preoperative period, did not make a significant contribution to predicting type 2 diabetes remission, in multiple logistic regression analysis, only young age, high preoperative body mass index, and high postprandial insulin levels were independently associated with remission. The gene discussed is INS; the disease is type 2 diabetes mellitus.