Fig. 2From: The urinary levels of CTX-II, C2C, PYD, and Helix-II increased among adults with KBD: a cross-sectional studyROC curves of the KBD group versus the IC group. The AUC for uCTX-II, uC2C, uPYD, and uHelix-II was 0.775 (P < 0.001), 0.672 (P < 0.001), 0.639 (P = 0.001), and 0.628 (P = 0.003), respectively. The AUC of uCTX-II was higher than that of the others, and its diagnostic values were significantly higher than those of the other three indicators for KBD diagnosisBack to article page