Table 1: Diagnostic results of DXA versus QCT for 140 participants.

Normal (%)Osteopenia (%)Osteoporosis (%)

Lumbar PA-DXA69 (49.3)47 (33.6)24 (17.1)
Any femoral site by DXA52 (37.1)70 (50.0)18 (12.9)
Any spinal or femoral site by DXA40 (28.6)72 (51.4)28 (20.0)
Lumbar QCT19 (13.6)56 (40.0)65 (46.4)

DXA: dual X-ray absorptiometry; PA-DXA: posteroanterior DXA; QCT: quantitative computed tomography.