. Author manuscript; available in PMC: 2018 Jan 19.

Published in final edited form as: J Urol. 2015 May 16;194(5):1308–1312. doi: 10.1016/j.juro.2015.05.074

Table 4.

Metabolic data on patients who did or did not have nephrocalcinosis

	Nephrocalcinosis Absent(33)	Nephrocalcinosis Present (22)	P- Value
Urine volume (L/day)	1.96 ± 0.77	1.92 ± 0.65	0.82
Urine pH	6.09 ± 0.40	6.22 ± 0.27	0.21
Urine calcium (mg/day)	223.68 ± 100.67	287.39 ± 112.49	0.03
Urine citrate (mg/day)	512.86 ± 277.07	435.02 ± 296.63	0.33
Urine sulfate (mg/day)	44.49 ± 16.34	39.88 ± 17.81	0.33
Urine ammonia (mmol/day)	35.71 ± 16.45	26.55 ± 8.85	0.03
Urine oxalate (mg/day)	42.98 ± 17.10	36.09 ± 13.56	0.12
Supersaturation calcium oxalate	7.923 ± 3.55	7.95 ± 2.90	0.97
Supersaturation calcium phosphate	1.26 ± 0.734	1.73 ± 0.61	0.02
Serum creatinine (mg/dL)	1.04 ± 0.212	0.99 ± 0.27	0.44
Serum bicarbonate (mmol/L)	27.13 ± 2.09	26.34 ± 2.12	0.15
Serum calcium (mg/dL)	9.22 ± 0.61	9.51 ± 0.62	0.07

Nephrocalcinosis absent 40

Missing metabolic studies 7

Nephrocalcinosis present 27

Missing metabolic studies 5