7 doctors weighed in:
How does the bone density test define osteoporosis?
7 doctors weighed in

Dr. James Chu
Internal Medicine - Endocrinology
3 doctors agree
In brief: Only partly
The dexa scan gives the bone mineral density at the hips, spine and forearm. These scores can predict osteoporosis: 't-score' of less than -2.
5 is considered osteoporosis. However, many people suffer osteoporosis fractures despite having better bone densities. So, we also use other factors: age, ethnicity, size, family history, prior fractures, smoking, alcohol, other conditions to predict risks.

In brief: Only partly
The dexa scan gives the bone mineral density at the hips, spine and forearm. These scores can predict osteoporosis: 't-score' of less than -2.
5 is considered osteoporosis. However, many people suffer osteoporosis fractures despite having better bone densities. So, we also use other factors: age, ethnicity, size, family history, prior fractures, smoking, alcohol, other conditions to predict risks.
Dr. James Chu
Dr. James Chu
Thank
1 comment
Dr. William Banks Hinshaw
In fact, in the one-year NORA study, only 18% of the women having fragility fractures met the T-score definition of osteoporosis.
Dr. Theresa Redling
Internal Medicine - Geriatrics
2 doctors agree
In brief: T score
The t score is the value used to determine normal bone .
1 is a value.Between 1 and 2.4 i'd osteopenia. A value above 2.5 is considered osteoporosis.

In brief: T score
The t score is the value used to determine normal bone .
1 is a value.Between 1 and 2.4 i'd osteopenia. A value above 2.5 is considered osteoporosis.
Dr. Theresa Redling
Dr. Theresa Redling
Thank
Get help from a real doctor now
Dr. Jane Van Dis
Board Certified, Obstetrics & Gynecology
14 years in practice
47M people helped
Continue
108,000 doctors available
Read more answers from doctors