Should Thresholds for Bone Mineral Density Treatment Be Lowered?

"Current World Health Organization guidelines suggest a bone-mineral density (BMD) threshold of 2.5 standard deviations below the mean for a young adult (i.e., T score, -2.5) to diagnose osteoporosis; it is unclear whether using this level as a treatment threshold will prevent most osteoporotic fractures. In a longitudinal observational study, sponsored by the manufacturer of an osteoporosis treatment, researchers examined fracture risk among 149,524 white women (mean age, 65). The women's peripheral (heel, forearm, or finger) BMD was measured using one of several types of absorptiometry or ultrasound equipment; they reported any new fractures at 12-month follow-up."

This is to Abhilash (Professor): What is the recommendations that you use in clinical practice? To the rest of the batch in India: Don't we use some score in % here? Please comment.