To calculate the probability of MetS, serum GPHB5 levels were divided into four quartiles (1, < 2.23 μg/L; 2, 2.23-3.13 μg/L; 3, 3.13-3.92μg/L; 4, > 3.92 μ g/L). Here, GPHB5 is linked to metabolic syndrome.