Fig. 2From: Establishment of a serological molecular model for the early diagnosis and progression monitoring of bone metastasis in lung cancerSerum levels of bone turnover markers and their abilities to diagnose bone metastasis in stage IV lung cancer patients. a, b Box plot distribution of the serum levels of the bone turnover markers tPINP and β-CTx from three groups, including the bone metastasis group (n = 127), the non-bone metastasis group (n = 78), and the healthy control group (n = 106). For details of the box plots, see the legend of Fig. 1. c ROC analysis of the ability of the serum bone turnover markers tP1NP and β-CTx to diagnose bone metastasis. d ROC analysis of the diagnostic efficiency of the combination of tP1NP and β-CTxBack to article page