Bone density of the radius, spine, and proximal femur in XXXX .

@entity1 @entity174 @entity170 @entity4681 @entity79 @entity173 @entity2331
@entity79 ( @entity79 ) was measured in 140 normal young @entity1 (aged 20 to 39 years) and in 423 consecutive @entity1 over age 40 referred for evaluation of @entity170 . Lumbar spine and proximal femur @entity79 was measured using dual-photon absorptiometry (153Gd), whereas the radius shaft measurement used single-photon absorptiometry (125I). There were 324 older @entity1 with no @entity174 , of which 278 aged 60 to 80 years served as age-matched controls. There were 99 @entity1 with @entity174 including 32 with vertebral and 22 with @entity173 . Subsequently, another 25 @entity1 with @entity173 had @entity79 measured in another laboratory; their mean @entity79 was within 2% of that of the original series. The mean age in both the nonfracture and @entity174 groups was 70 +/- 5 years. The @entity79 in the age-matched controls was 20% to 25% below that of normal young @entity1 for the radius, spine, and femur, but the Ward's triangle region of the femur showed even greater loss (35%). The mean @entity79 at all sites in the crush @entity174 cases was about 10% to 15% below that of age-matched controls. @entity4681 was best discriminated by spine and femoral measurements (Z score about 0.9). In @entity1 with @entity173 , the @entity79 was 10% below that of age-matched controls for the radius and the spine, and the @entity79 for the femoral sites was about 25% to 30% below that of age-matched control (Z score about 1.6). Femoral densities gave the best discrimination of @entity173 cases and even reflected spinal @entity2331 . In contrast, neither the spine nor the radius reflected the full extent of femoral @entity2331 in @entity173 .
