Characteristics of Lumbar Bone Density in Middle-Aged and Elderly Subjects: A Correlation Study between T-Scores Determined by the DEXA Scan and Hounsfield Units from CT

Table 1

Distribution of the mean CT values and BMD T-scores in the lumbar L1–L4 vertebrae.

Age (years)	Female	Male	t
40–59	CT value: 150.47 ± 52.75	CT value: 178.94 ± 44.90	2.761	0.007
	T-score: −1.15 ± 0.86	T-score: −0.16 ± 1.09	−4.311	＜0.001
60–79	CT value: 104.21 ± 36.26	CT value: 97.39 ± 19.24	−0.996	0.324
	T-score: −1.56 ± 1.22	T-score: −1.15 ± 1.26	−1.405	0.164