Table 4.

Pearson correlation coefficients among selected parameters of mineral and bone metabolism and their relation to age and renal function in older hip fracture (HF) patients with and without history of prefracture stroke.

	Poststroke HF		HF without history of stroke
	r	P	r	P
Calcium-PTH	−0.328	0.047*	−0.273	<0.001
Calcium-osteocalcin	0.3226	0.052*	0.139	0.034*
Calcium-BAP	0.137	0.434	0.16	0.015
Osteocalcin-eGFR	−0.525	0.001	−0.346	<0.001
Calcium-eGFR	−0.464	0.004	−0.075	0.250
DPD/Cr-NTx/Cr	0.779	<0.001	0.380	<0.001
DPD/Cr-BSI	−0.926	<0.001	−0.690	<0.001
NTx/Cr-BSI	−0.952	<0.001	−0.876	<0.001
Age-eGFR	−0.443	0.005	−0.337	<0.001
Phosphate-calcium	0.415	0.011	0.055	0.399
Phosphate-DPD/Cr	0.580	0.001	0.208	0.003
Phosphate-osteocalcin	0.489	0.002	0.123	0.061
Phosphate-BAP	0.215	0.216	0.169	0.01
Phosphate-NTx/Cr	0.478	0.006	0.079	0.263
Phosphate-BSI	−0.531	0.003	−0.109	0.126
Phosphate-eGFR	−0.32	0.054*	−0.173	0.008
PTH-vitamin B12	0.365	0.028*	0.016	0.817
BAP-vitamin B12	0.442	0.009	0.188	0.006

Values for all variables other than age were log transformed before analysis.

PTH: parathyroid hormone; eGFR: estimated glomerular filtration rate; DPD/Cr: urinary deoxypyridinoline corrected for urinary creatinine concentration; NTx/Cr: cross-linked N-telopeptide of type 1 collagen corrected for urinary creatinine concentration; BSI: bone balance status index. *Nonsignificant (P > 0.005) correlations when Bonferroni and Sidak adjustments for multiplicity were adopted.