Fig. 1 demonstrates that patients with Cerebral Infarction (CI) had significantly higher serum FGF23 levels compared to healthy volunteers (18.53 ± 8.19 pg/mL vs. 8.57 ± 3.45 pg/mL, respectively; p < 0.05, 95 % CI 7.247–11.23). Here, FGF23 is linked to brain infarction.