Table 1.

Correlation of elemental ratios measured in this study, with X-ray diffraction measurements made on the same 39 calcifications in a previous study.

EDS Measurement	XRD measurement	Coefficient	Adjusted R2	p-value	Adjusted p-value
Mg:Ca Ratio	Whitlockite %	−35.6	0.183	0.004	0.034
	Domain Diameter	−125	0.165	0.007	0.046
	‘c’/‘a’ lattice parameter ratio	−0.105	0.279	<0.001	0.003
Ca:P Ratio	Whitlockite %	2.73	0.098	0.032	0.158
	Domain Diameter	−0.0555	−0.028	0.991	1.000
	‘c’/‘a’ lattice parameter ratio	0.00231	−0.012	0.459	1.000
Na:Ca Ratio	Whitlockite %	−1.29	−0.027	0.871	1.000
	Domain Diameter	63.1	0.107	0.026	0.154
	‘c’/‘a’ lattice parameter ratio	0.0366	0.071	0.056	0.222