ANPEP and metabolic syndrome: We found that the odds ratios for MetS was higher in quartiles 2, 3 and 4 of CTRP7 concentration than that of quartile 1 (95% CI 1.45-3.83 for quartile 2; 95% CI 3.32 - 8.88 for quartile 3 and 95% CI 8.15-24.33 for quartile 4 vs. quartile 1, all p < 0.01), while the odds ratio of MetS in the quartile 2, 3 and 4 of APN concentration was lower than that in quartile 1 (95% CI 0.34 - 0.88 for quartile 2; 95% CI 0.17 - 0.45 for quartile 3 and 95% CI 0.17- 0.44 for quartile 4; vs. quartile 1, p < 0.01 or 0.05) (Figure 1F).