Table 4.

Intake of potassium citrate or potassium chloride, along with changes in renal graft function, serum bicarbonate concentration, and serum pH

	Baseline		2 mo		6 mo		12 mo
	Potassium Citrate	Potassium Chloride	Potassium Citrate	Potassium Chloride	Potassium Citrate	Potassium Chloride	Potassium Citrate	Potassium Chloride
Citrate dosage, mmol	0	0	32±11	0	29±16	0	34±15	0
K+ dosage, mmol	0	0	77±27a	27±10	71±41a	27±10	83±37a	28±10
Estimated GFR, ml/min per 1.73 m2	56±19	51±17	–	–	–	–	53±16b	46±11b
Serum pH	7.36	7.34	7.37a	7.32	7.38	7.34	7.37	7.35
Serum HCO3−, mmol/L	21.3±2.3	20.4±2.1	25.4±2.2a	21.0±2.7	24.1±3.4a	21.6±1.6	24.3±2.7a	21.4±1.9

^aP<0.05 versus potassium chloride.

^bP<0.05 versus baseline.