Calculating Bone Mineral Densitometry, BMD fracture risk

Calculates the absolute risk of having a future fragility fracture during the next 10 years.

Age			T-score

Result:

10-year risk:

Note: This calculator is only for women. Not for men.

You can click on these Ages and T-scores as data entry for rapid results

Ages
less than 45					45	46	47	48	49
50	51	52	53	54	55	56	57	58	59
60	61	62	63	64	65	66	67	68	69
70	71	72	73	74	75	76	77	78	79
80	81	82	83	84	85	86 or more

T-scores
1.0	1.1	1.2	1.3	1.4	1.5	1.6	1.7	1.8	1.9
0.0	0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8	0.9
-0.0	-0.1	-0.2	-0.3	-0.4	-0.5	-0.6	-0.7	-0.8	-0.9
-1.0	-1.1	-1.2	-1.3	-1.4	-1.5	-1.6	-1.7	-1.8	-1.9
-2.0	-2.1	-2.2	-2.3	-2.4	-2.5	-2.6	-2.7	-2.8	-2.9
-3.0	-3.1	-3.2	-3.3	-3.4	-3.5	-3.6	-3.7	-3.8	-3.9

Ages greater than 85 are calculated as 85. Why? Because chart ends.
Ages less than 45 are unsuited for calc.

The calculated absolute risk of having a future fragility fracture during the next 10 years, is based on the bone mineral densitometry BMD values of T-score and Age. The Calculator is based on the charts shown below, which come from the references listed.

$Bone mineral densitometry, 10-year absolute risk of fragility fractures for women.$

For men, use the graph below to visually find the level of risk.
(sorry, no auto-calculator for men.)

$Bone mineral densitometry, 10-year absolute risk fragility fractures for men.$

References

Siminoski K, Leslie WD, Frame H, et al, Recommendations for bone mineral density reporting in Canada: a shift to absolute fracture risk assessment. J Clin Densitom, 2007; 10:120-3

Siminoski K, Leslie WD, Frame H, et al, Recommendations for bone mineral density reporting in Canada. Can Assoc Radiol J. 2005; 56:178-88.

http://www.osteoporosis.ca/local/files/health_professionals/pdfs/CARJ-June05-BMD%20Recomm.pdf

Kanis JA, Borgstrom F, et al. Assessment of fracture risk. Osteoporos Int 2005 16:581-9.

Disclaimer

This calculator is a tool to be used by qualified professionals who having training to know when it is appropriate to use it, and when it is not. Other factors affect risk of fragility fracture, including a history of prior fractures, metabolic bone- weakening diseases, etc.

If you are wondering, what is a BMD value's T-score, well, then this calculator isn't for you.

I made this in 2008. Subsequently the FRAX calculator appeared online and has become the standard used by almost everyone. However, my personal observation of FRAX has noticed some odd behavior. So keep this calculator in mind if you find FRAX frustrating and mystifying.

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