ToolsCalculators
Osteoporosis Index of Risk (OSIRIS)
Pre-selects postmenopausal women for bone densitometry.
Osteoporosis Index of Risk (OSIRIS)
Body weight
kg
Age
years
History of previous low-energy fracture
Currently taking hormone replacement therapy
Complete the fields above to see the result.
When to use
- Triaging postmenopausal women for DXA when access is limited.
Formula
OSIRIS = trunc(0.2 × weight[kg]) − trunc(0.2 × age[years]) − 2 (prior low-energy fracture) + 2 (current HRT). > 1 low, −3 to 1 intermediate, < −3 high probability of osteoporosis.