Fig. 1

X-tile analysis of survival data. X-tile analysis was done on gastric cancer patients with T₂DM. The optimal cut-point highlighted in the left panels and a Kaplan–Meier plot (right panels). P values were determined by using the cut-point defined in the training set and applying it to the validation set. Figures show BMI count divided at the optimal cut-point (19 kg/m², χ² = 57.308, P < 0.001)