2.

各组血清ICTP检测结果的比较（Mean±SD）

Comparison of mean values of serum ICTP in groups (Mean±SD)

Group	n	ICTP (μg/L)	P
*★Comparison of mean values of serum ICTP in bone metastases group and without bone metastases group (P=0.001); *▲bone metastases group and healthy controls (P=0.036); ★▲There was no statistically significant relationship between without bone metastases group and healthy controls (P=0.523). ICTP: cross-linked telopeptide of type Ⅰ collage; BAP: bone-specific alkaline phosphatase.
*Bone metastases	50	2.71±1.39	0.001*★
★Without bone metastases	40	1.85±0.84	0.523★▲
▲Healthy controls	20	2.00±0.87	0.036*▲