PDIA3 and metabolic syndrome: As shown in Table 3, PDIA3 levels were positively correlated with weight (r = 0.325; p < 0.001), BMI (r = 0.303; p < 0.03) and BMI Z-score (r = 0.378, p < 0.008), waist circumference (r = 0.292; p < 0.05), Tanner stages (r = 0.328; p < 0.05), acanthosis score (r = 0.342; p < 0.05), number of criteria identifying metabolic syndrome (r = 0.485; p < 0.001), LDL (r = 0.305; p < 0.05), non-HDL cholesterol (r = 0.438; p < 0.008), triglycerides (r = 0.664; p < 0.001), fasting insulin (r = 0.296; p < 0.02), and HOMA-IR (r = 0.273; p < 0.06).