Use DXA to measure bone mineral density in women ≥ 65 years; women between menopause and age 65 who have risk factors (eg, family history of osteoporosis, a low body mass index, and use of tobacco and / or drugs with a high risk of bone loss [including glucocorticoids]); men and women of any age who have fragility fractures; evidence on imaging studies of decreased bone mineral density or asymptomatic vertebral compression fractures; and patients at risk of secondary osteoporosis.