History of fracture of vertebrae (clinical or subclinical), hip, wrist, pelvis, or humerus. |
T-score ≤–2.5 (DXA) at the lumbar spine, femoral neck, or total hip.* |
T-score between –1 and –2.5 at the femoral neck or spine, and a 10-year probability of hip fracture ≥3% or a 10-year probability of any major osteoporosis-related fracture ≥20% based upon the United States-adapted WHO algorithm. |
DXA: dual-energy x-ray absorptiometry; WHO: World Health Organization.
* Predictive value of isolated measurement of 1/3 radius varies with clinical context.