Pruritus Features in Children with End-Stage Renal Disease Underwent Dialysis: A Cross-Sectional Study

Table 5

Correlation between quantitative variables and pruritus score in terms of Spearman’s rho.

Variable		Correlation coefficient ( value)
		Distribution score	Severity score	Frequency score	Sleep score	Total score
Age (year)		0.42 (0.02)	-0.12 (0.54)	0.01 (0.96)	0.02 (0.89)	0.17 (0.37)
Duration of dialysis (months)		0.21 (0.27)	-0.10 (0.61)	0.08 (0.69)	0.14 (0.47)	0.03 (0.87)
Age of onset of dialysis (year)		0.28 (0.13)	-0.13 (0.50)	0.05 (0.78)	0.04 (0.83)	0.09 (0.64)
Serum BUN (mg/dl)	Mean	0.08 (0.68)	0.13 (0.47)	0.22 (0.23)	0.06 (0.74)	0.03 (0.84)
	Min	-0.06 (0.76)	0.07 (0.70)	0.17 (0.36)	0.12 (0.50)	-0.05 (0.79)
	Max	0.13 (0.47)	0.13 (0.48)	0.19 (0.31)	0.01 (0.92)	0.04 (0.82)
Serum Cr (mg/dl)	Mean	0.12 (0.51)	-0.11 (0.57)	0.01 (0.95)	0.08 (0.65)	0.02 (0.91)
	Min	0.11 (0.57)	-0.15 (0.42)	-0.01 (0.95)	0.05 (0.77)	-0.01 (0.94)
	Max	0.10 (0.60)	-0.09 (0.61)	-0.05 (0.78)	0.09 (0.64)	0.02 (0.90)
Serum Ca (mg/dl)	Mean	0.15 (0.41)	0.18 (0.33)	-0.19 (0.31)	0.09 (0.62)	0.29 (0.12)
	Min	0.09 (0.63)	0.27 (0.15)	-0.14 (0.46)	0.06 (0.76)	0.34 (0.06)
	Max	0.24 (0.19)	0.03 (0.87)	-0.19 (0.30)	0.11 (0.57)	0.17 (0.36)
Serum P (mg/dl)	Mean	-0.05 (0.78)	-0.23 (0.22)	-0.25 (0.18)	-0.13 (0.51)	-0.23 (0.22)
	Min	0.23 (0.23)	-0.15 (0.44)	0.02 (0.90)	0.21 (0.26)	0.01 (0.94)
	Max	-0.01 (0.97)	-0.23 (0.21)	-0.15 (0.43)	-0.12 (0.52)	-0.24 (0.19)
Serum PTH (ng/ml)	Mean	0.33 (0.11)	-0.13 (0.54)	0.23 (0.28)	0.05 (0.80)	0.06 (0.79)
	Min	0.42 (0.04)	-0.12 (0.58)	0.20 (0.34)	0.06 (0.76)	0.12 (0.56)
	Max	0.14 (0.49)	-0.12 (0.57)	0.14 (0.50)	-0.07 (0.74)	-0.05 (0.80)
Serum Ca×P		0.04 (0.82)	-0.17 (0.36)	-0.22 (0.23)	-0.09 (0.64)	-0.11 (0.55)

BUN: blood urea nitrogen; Cr: creatinine; Ca: calcium; P: phosphorus; PTH: parathyroid hormone; Min: minimum; Max: maximum.