ToolsCalculators
Osteoporosis Self-Assessment Tool (OST)
Two-variable estimate of osteoporosis risk from age and weight.
Osteoporosis Self-Assessment Tool (OST)
Body weight
kg
Age
years
Complete the fields above to see the result.
When to use
- Quick risk triage for osteoporosis using only age and weight.
Formula
OST = trunc((weight[kg] − age[years]) × 0.2). > −1 low, −1 to −4 moderate, < −4 high risk.