Table 2.

Comparison of the concave and convex hipbone volumes in patients with AIS

		Hipbone volumes (cm3) mean ± SD (range)
Curve type	N	Concave	Convex	P-value
All	42	257.3 ± 43.5 (172.0–357.1)	256.9 ± 42.6 (174.1–356.2)	0.75
Group 1	12	254.4 ± 33.6 (215.1–327.8)	251.7 ± 32.6 (216.0–320.5)	0.10
Group 2	8	240.3 ± 33.2 (188.9–282.7)	239.7 ± 32.6 (191.3–279.6)	0.74
Group 3	22	265.2 ± 50.7 (172.0–357.1)	266.1 ± 49.2 (174.1–356.2)	0.59

Group 1: thoracic curve group; Group 2: thoracolumbar/lumbar curve group; Group 3: double curve group.