Fracture Risk Calculator


Enter the AGE and results from a DEXA measurement of the HIP
(either T-score or Z-score or Total hip bone density in g/cm2).

AGE

 
20-29
30-39
40-49
50-59
60-64
65-69
70-74
75-79
80-84
over 84
OTHER FACTORS
 
Fracture as adult
Hip fracture in parent
Weigh less than 125 lb
Cigarette smoker
Use arms to rise from chair
Take seizure medicine
Take prednisone
Use sedatives
History hyperthyroidism
Resting pulse > 80
Walk for exercise
T-score =
 
TOTAL HIP BMD
Hologic
Lunar
Norland
g / cm2
 
Z-score =
 
AGE --- years old     STANDARDIZED BONE DENSITY: --- mg/cm2
T-SCORE: ---     Z-SCORE: ---
Average bone density for age: --- mg/cm2
Difference from average bone density: --- %
Percentile (% of ordinary women of same age with lower density): --- %
FRACTURE RISKS BASED ON BONE DENSITY AND AGE:
Risk relative to average woman of same age: ---   times --   likely to break hip
Hip fracture risk in next 5 years: --- %
Spine fracture risk in next 5 years: --- %
Lifetime risk of hip fracture: ---
Risk of any osteoporotic fracture in the next ten years: ---
FRACTURE RISKS CONSIDERING OTHER FACTORS:
Fracture Risk Index (Black): --   of 15
-- --
Hip fracture risk in 5 years (baseline fracture rate times relative risks): --
TREATMENT THRESHOLD for prescription medications (Kanis):
--
A recent study by Schousboe found it was cost-effective to treat women
aged 55 to 75 with a clnical fracture or a T-score less than -2.5




The above results apply to ambulatory Caucasian women from the US or northern Europe. The risk for a hip fracture is based on studies of large numbers of women but for an individual woman these are all estimations. Also, there are some discrepancies among the results because they were calculated using different methods and different data sets. Lifetime and 5-yr risks were from the Study of Osteoporotic Fractures. To calculate relative risk due to bone density I used a relative risk of 2.0 per standard deviation. For ten-year fracture probabilities I used data from Sweden.
So far this works only on Internet Explorer - despite hours of trying!! (References)

Updated 8/24/05