Table 2. Bone density assessed by CT (HU) in relation to DXA results with the age of risk for menopause.

*Statistical significance

SD: Standard deviation; CT: Computed axial tomography; DXA: Dual X-ray absorptiometry.

		Age of Risk for Menopause
DXA results	Global Mean ± SD	>48 years Mean ± SD	<48 years Mean ± SD
Normal	187.84 ± 64.4	166.03 ± 56.71	231.46 ± 59.4
Osteopenia	139.19 ± 40.1	134.39 ± 38.3	164.42 ± 44.6
Osteoporosis	93.73 ± 21.6	95.74 ± 21.73	73.63
P value	0.0001*	0.0001*	0.007*