Table 2.

Serotoxin levels in the two groups

Group	Parathyroid hormone (pg/mL)	β2-microglobulin (mg/L)	Serum cystatin C (mg/L)	Blood urea nitrogen (mmol/L)
Control	526.54 ± 20.65	10.54 ± 1.69	3.58 ± 0.36	20.46 ± 3.25
Study	412.42 ± 13.42	10.43 ± 1.68	2.21 ± 0.23	20.54 ± 3.16
t	26.619	0.265	18.422	-0.101
P value	0.000	0.792	0.000	0.920