Table 1.

Comparison of baseline demographic characteristics in the treatment and control groups (M ± SD).

Variable	Treatment group	Control group	t/X 2	P
Male/female	22/18	19/21	0.450	0.502
Age (year)	52.07±10.42	52.85±9.16	-0.353	0.725
Basic disease
CGN	23	20	0.453	0.501
HN	15	17	0.208	0.648
PK	2	3	0.213	0.644
Stage
CKD3	17	16	0.520	0.820
CKD4	13	15	0.220	0.639
CKD5	10	9	0.069	0.793

CGN: chronic glomerulonephritis, HN: hypertensive nephropathy, and PK: polycystic kidney.