. Author manuscript; available in PMC: 2017 Jul 18.

Published in final edited form as: J Urol. 2017 Jan 5;197(6):1472–1477. doi: 10.1016/j.juro.2017.01.002

Table 3.

Correlations between urinary calcium and bone mineral density in female calcium stone formers by menopausal status and estrogen use during random and restricted diets, and fasting

		Estrogen Unadjusted^*		Estrogen Adjusted^†

Z-Score	No. Pts	ρ	p Value	Partial ρ	p Value
	Estrogen
L2-L4:
Random urine calcium	139	0.05	0.59	−0.12	0.16
Restricted urine calcium	121	0.10	0.29	−0.02	0.82
Fasting Ca/Cr	117	0.02	0.84	0.02	0.83
Femoral neck:
Random urine calcium	141	0.27	0.001	0.13	0.13
Restricted urine calcium	123	0.25	0.006	0.09	0.31
Fasting Ca/Cr	118	0.01	0.90	0.02	0.82
	No estrogen
L2-L4:
Random urine calcium	34	−0.17	0.34	−0.31	0.09
Restricted urine calcium	29	−0.38	0.04	−0.45	0.02
Fasting Ca/Cr	22	−0.42	0.05	−0.40	0.07
Femoral neck:
Random urine calcium	35	0.01	0.96	−0.08	0.67
Restricted urine calcium	30	−0.04	0.83	−0.21	0.29
Fasting Ca/Cr	23	−0.27	0.21	−0.32	0.15

Spearman test.

^†

Random and restricted 24-hour urinary calcium regressions adjusted for BMI, sodium and SO₄. and fasting urinary Ca/Cr correlations adjusted for BMI.