Among 1,272 total study population, patients had normal BMD in 377 (29.6%) cases, osteopenia in 593 (46.3%) cases, and osteoporosis in 302 (23.7%) cases according to T scores of hip and lumbar spine. Adding radius T score to the above-mentioned T scores, results changed to normal BMD in 259 (20.4%) cases, osteopenia in 593 (46.6%) cases, and osteoporosis in 420 (33%) cases. Between BMD at 2 sites and 3 sites, there was concordance in 1042 (81.9%), minor discordance in 224 (17.6%), and major discordance in 6. (Comparison of Bone Mineral Densitometry at 2 Sites Versus 3 Sites in Patients Suspicious for Osteoporosis - Ahad Azami, Hasan Anari, Manouchehr Iranparvar, Amin Azizi, Afshin Habibzadeh, 2019 (sagepub.com))