At the moment of occurrence of a fragility hip fracture, men have higher mechanical properties values in comparison with women

Table 2 Summary of mechanical parameters by age-group: median (IQR)

Measure	<75 (N = 12)	≥75–85 > (N = 40)	≥ 85 (N = 21)	p-value ^a
*Age* [years]	70 (66–71)	81 (78–83)	88 (86–93)	<.0001
*Ultimate stress,* σ _ULT [MPa]	4.49 (3.85–5.34)	7.03 (3.45–10.99)	5.30 (3.69–6.96)	0.163
*Young’s modulus,* E [MPa]	238.23 (129.77–328.50)	244.98 (115.96–516.13)	87.72 (29.76–251.70)	0.037
*Energy to failure,* W _ULT [MJ/m³]	0.06 (0.06–0.09)	0.16 (0.05–0.27)	0.249 (0.10–0.40)	0.037

^a p-value obtained by Kruskal-Wallis test for univariate comparison between age-groups, with statistical significance for p < 0.05.

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