TABLE 2.

Analysis of the correlation between factors and CI.

Variables	r	P
P (mmol⋅L–1)	−0.186	0.042
Tbil (μmol⋅L–1)	−0.195	0.032
Scr (μmol⋅L–1)	−0.297	0.001
TP (g⋅L–1)	−0.412	< 0.001
Alb (g⋅L–1)	−0.357	< 0.001
Age (year)	0.467	< 0.001
HIF-1α (pg⋅ml–1)	0.509	< 0.001
Roxadustat	−0.205	0.025
Hemodiafiltration times	−0.334	< 0.001
Hemoperfusion times	−0.220	0.016
Education level	−0.584	< 0.001

The meaning of each abbreviation is detailed in the English abbreviation table above. The spearman correlation was shown in continuous variables, and Kendall test correlation were shown in rank variables.