Table 2.

Serum and urinary parameters of mineral metabolism

	Baseline		Follow-Up
	Potassium Citrate	Potassium Chloride	Potassium Citrate	Potassium Chloride
Serum calcium, mM/L (2.10–2.60)	2.39±0.10	2.38±0.07	2.36±0.12	2.33±0.11
Serum phosphate, mM/L (0.80–1.45)	1.02±0.22	0.96±0.19	0.98±0.22	0.92±0.18
Intact parathyroid hormone, ng/L (15–65)	81±49	80±33	85±37	78±29
Bone-specific alkaline phosphatase, U/L (9–90)	14±6	16±5	14±7	12±3
25-OH vitamin D, µg/L (>20)	22.5±12.0	24.4±9.3	22.7±13.4	22.0±9.2
1,25-diOH vitamin D, ng/L (18.0–70.5)	39.2±13.1	39.6±17.6	41.6±18.3	42.4±17.8
Urinary calcium, mmol/d	1.5±1.1	2.3±2.5	2.0±1.7	2.7±2.5
Urinary phosphate, mmol/d	20±7a	29±6	24±9	27±7

Reference values are shown in parentheses.

^aP=0.001 versus potassium chloride.