Table 3. Pearson’s correlation coefficients between mechanical properties and specimen-specific parameters.

Overall	Geometric properties
	BMD	Age	Insertion angle	Tip to anterior cortex	Tip to posterior cortex	Tip to lateral cortex
Failure load	0.338	0.158	0.165	0.187	−0.328	0.102
Ultimate failure	0.309	0.157	0.244	0.311	−0.366	0.180
Displacement	0.183	0.192	0.146	−0.023	−0.177	−0.036
Stiffness	0.413	0.159	0.001	0.316	−0.256	0.024
Energy	0.161	0.082	0.362	0.257	−0.314	0.220

0.00–0.19, very weak; 0.20–0.39, weak; 0.40–0.59, moderate; 0.60–0.79, strong; 0.80–1.00, very strong.