In the analysis, excluding patients with a history of stroke, there was the significant negative association between MoCA score and FGF21 (r = −0.282, p = 0.003), and between MoCA score and HbA1C (r = −0.220, p = 0.02), and a significant positive association between MoCA score and BMI (r = 0.354, p = 0.05). Here, FGF21 is linked to stroke disorder.