#44 Screening for Osteoporosis – Who Should Receive Bone Mineral Density Testing?
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- Multiple risk factors had minimal value over age and weight alone.
- The OST based on weight and age was developed.
- OST performs at least as well as others.2-9 For example:
- OST performs moderately well identifying femoral neck osteoporosis (sensitivity 89%, specificity 41%) in postmenopausal white females.9
- Tools with fewer risk factors (like OST) predict osteoporosis as well as or better than those with more risk factors.3,4,7-9
- No tool was clearly superior.3,4,8
- Unlike other tools to assess the risk of osteoporosis, OST has been validated in both sexes and a variety of races.6,9
- There were a number of methodological limitations of included studies.2-9
- Recent reviews advocate for simple tools like OST.7-9
- 2010 Osteoporosis Canada guidelines recommend detailed history and focused physical examination for all patients 50-64 years, including assessment of 10 different risk factors for osteoporosis.10
- Time required to fully satisfy preventive recommendations is prohibitive.
- For example, physicians need 7.4 hours per working day for the provision of preventive services alone.11
- Multiple sites offer on-line or printable tables to apply OST.12-15
- Simple application of OST: Weight (kg) – Age (years).
- If <10, increased risk of osteoporosis and BMD is warranted.
- For example: A 55 year old woman weighing 70 kg has an OST=70-55=15,
- She is low risk for osteoporosis and does not need a BMD.