T-Score

The term used to describe standard deviations below the average in healthy premenopausal women ages 20-30 in the population as measured by bone mineral density. OR the term used to decide whether bone mineral density is normal, low (osteopenia) or suggests a strong risk for fragility fracture, called osteoporosis. Is based on the bell shaped curve distribution of bone density from a random sample of men or women ages 20-30.