10-Year Fracture Risk Calculator Version 3.0

How to use this calculator

To get your 10-year fracture risk assessment:

1. Enter your age in years
2. Select your sex (male or female)
3. Enter your bone mineral density (BMD) T-score (if available)
4. Check if you have any of the risk factors (smoking, alcohol use, etc.)
5. Click "Calculate" to get your results

The calculator will display your estimated 10-year fracture risk percentage and provide guidance on what this means for your health.

How the 10-year fracture risk is calculated

The version 3.0 algorithm uses a logistic regression model that incorporates several key risk factors:

• Age and sex
• Bone mineral density (BMD) T-score
• Current smoking status
• Alcohol consumption
• Previous fracture history
• Family history of osteoporosis
• Glucocorticoid use

The coefficients (β) are derived from large clinical studies and have been updated in version 3.0 to reflect more recent data.

Interpreting your results

The calculator provides a percentage risk estimate. Here's what different risk levels generally mean:

• Less than 2%: Low risk - Your fracture risk is below average
• 2% to 5%: Moderate risk - You have an average fracture risk
• 5% to 10%: Elevated risk - You have a higher than average fracture risk
• 10% or more: High risk - You have a significantly increased fracture risk

Worked example

Let's calculate the 10-year fracture risk for a 65-year-old female with a T-score of -2.5, who smokes, has a history of previous fractures, and takes glucocorticoids:

1. Age: 65 years
2. Sex: Female
3. T-score: -2.5
4. Smoking: Yes
5. Alcohol: Moderate
6. Previous fractures: Yes
7. Family history: No
8. Glucocorticoids: Yes

Using the calculator with these inputs would produce a 10-year fracture risk estimate of approximately 12.3%.