表 5. Vascular calcification and cardiac valve calcification in patients with stage 3-5 CKD.

CKD 3～5期患者的血管钙化和心脏瓣膜钙化情况

Group	n	Vascular calcification/ case (%)	Cardiac valve calcification/ case (%)
#P<0.05, vs. CKD stage 3-4 group; ▲P<0.05, vs. CKD stage 5 non-dialysis group.
CKD stage 3-4	80	31 (38.75)	9 (11.25)
CKD stage 5 without dialysis	59	26 (44.07)	11 (18.64)
CKD stage 5 hemodialysis	229	142 (62.01)#，▲	84 (36.68)#，▲
χ 2		16.350	22.520
P		<0.001	<0.001