Osteoporosis: Understanding Your T-Score
Osteoporosis: What is your T-Score?
BMD (Bone Mineral Density Measurement) is commonly reported in terms of T-score, which is equivalent to the number of standard deviations below a reference population of young healthy adults. The T-score has also been used to define osteoporosis. For example, based on the increasing risk of fracture with decreasing bone mass, the WHO report defined diagnostic categories based on BMD measurements as follows:
Normal: T-score above -1).
Osteopenia: T-score between -1 and -2.5
Osteoporosis: T-score at or below -2.5