Among the 4664 patients with T2D, subjects were excluded in the following order: age < 18 years (n = 26), with a history of dialysis at the Jinnouchi Hospital (n = 21), with no continuous treatment with SGLT2 inhibitors during the evaluation period of anemia (n = 3469), and with incomplete data or a history of dialysis at another hospital (n = 918). The gene discussed is SLC5A2; the disease is anemia.