Table 2.

Urine parameters before and after treatment were checked in Wu-ling-san formula or placebo group.

		Wu-ling-san group			Placebo group		P value (% of change)
	Pretreatment	Post-treatment	% of change	Pretreatment	Post-reatment	% of change
Urine volume(ml/day)	2485.7 ± 386.5	2796.4 ± 525.7	13.9%	2732.1 ± 797.9	2521.4 ± 762.7	−5.7%	0.02*
Urine Ca (mg/day)	249.5 ± 132.2	302.1 ± 106.5	44.6%	266.3 ± 101.6	415.1 ± 290.7	62.7%	0.62
Urine UA (mg/day)	749.6 ± 336.6	893.5 ± 334.1	27.6%	760.6 ± 246.2	849.3 ± 478.4	9.5%	0.22
Urine Cr (mg/dl)	59.1 ± 21.7	71.1 ± 24.4	42.9%	66.0 ± 33.5	80.4 ± 27.6	36.6%	0.84
Urine PH	6.6 ± 0.6	6.5 ± 0.7	−0.02%	6.3 ± 0.8	6.3 ± 0.7	0.6%	0.91
24hr Urine Ccr (ml/min)	89.2 ± 26.4	107.5 ± 30.9	26.2%	133.4 ± 37.1	114.1 ± 44.0	14.5%	0.53

Data presented as mean ±SD

^*Percentage of change between groups P < 0.05 (independent t-test)