. 2009 Summer;11(3):134–144.

Table 2.

Prospective, Randomized, Controlled Trials for the Treatment of Stone Recurrence With Alkali Citrate Therapy Lasting at Least 1 Year

Study	Duration (mo)	Rx	n	Dropout Rate (%)	Remission Rate (%)	Average Increase in Citrate Excretion (%)
Barcelo et al.⁹⁸	36	K-Citrate	18	36	72.2	77
		Control	20	31	20	0
Hofbauer et al.⁹⁹	36	Na-K-Citrate	22	36	31^*	75
		Control	16	12	27	0
Ettinger et al.⁹³	≦37	K-Mg-Citrate	31	48	87.1	31
		Control	33	24	36.5	0
Soygur et al.¹⁰⁰	12	K-Citrate	28	NS	100	115
		Control	28	NS	71.4	NS

No statistically significant difference.

NS, not stated.