Table 3.

Prevalence of Fracture Versus BMD Z-Score

	Distal femur
	Region 1		Region 2		Region 3		Lumbar spine
Pentile group	Z-score	% fractured	Z-score	% fractured	Z-score	% fractured	Z-score	% fractured
1	> −1.8	13%	> −1.7	14%	> −1.4	11%	> −1.0	17%
(Highest Z-scores)		16 of 124		17 of 125		14 of 124		8 of 47
2	−1.8 to −3.2	23%	−1.7 to −3.0	21%	−1.4 to −2.5	24%	−1.0 to −1.9	26%
		29 of 124		26 of 124		30 of 123		12 of 46
3	−3.2 to −4.3	33%	−3.0 to −4.5	32%	−2.5 to −3.5	22%	−1.9 to −2.6	20%
		40 of 123		39 of 123		27 of 123		9 of 45
4	−4.3 to −5.8	37%	−4.5 to −6.5	31%	−3.5 to −4.8	37%	−2.6 to −3.5	39%
		46 of 124		38 of 124		45 of 123		18 of 46
5	< −5.8	30%	< −6.5	39%	< −4.8	41%	< −3.5	44%
(Lowest Z-scores)		36 of 122		48 of 123		50 of 122		20 of 45