Table 3.

Hu value in AIS patients. .

Structural curve		Non-structural curve
Level	HU value	Level	HU value
UEV	229.60 ± 34.28**	UEV	261.41 ± 50.36
AV-2	215.75 ± 26.99**	AV-1	256.73 ± 48.92
AV-1	223.23 ± 29.03**	AV	254.85 ± 42.35
AV	199.40 ± 18.26	AV + 1	250.57 ± 41.93
AV + 1	216.38 ± 22.11**	LEV	251.42 ± 40.05
AV + 2	224.86 ± 33.92**	Average	254.99 ± 44.48
LEV	217.75 ± 30.09**

UEV means upper-end vertebra; AV-2 means upper vertebra adjacent to AV-1; AV-1 means upper vertebra adjacent to AV; AV means apex vertebra; AV + 1 means lower vertebra adjacent to AV; AV + 2 means lower vertebra adjacent to AV + 1; LEV means lower-end vertebra. **P < 0.01 vs. AV group.