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.

 
 

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

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.

Last modified 10-July-2008 Created by Steven B. Halls, MD Copyright