ADIPOQ and prediabetes syndrome: When the participants were divided into three groups by their glucose level status (normal glucose status, prediabetes, and diabetes), the mean urinary adiponectin concentrations (μg/gCr) were 2.96 ± 2.03, 9.69 ± 14.96 and 12.52 ± 21.3, respectively (P < 0.001).