Table 3.

Mean and standard deviations (SD) of the medio-lateral, anterior and vertical distances (mm) between S1 and the right and left ASIS, PSIS, TSIC and WTIC for the able-bodied girls and subjects with a moderate and severe scoliosis groups

	Able-body girls		Moderate scoliosis		Severe scoliosis
	Mean	SD	Mean	SD	Mean	SD
Medio-lateral distance (width)
ASIS right	105.6	16.4	100.9	12.3	115.9†	9.1
ASIS left	−112.4	17.0	−112.0	17.3	−109.5	22.3
PSIS right	35.7	5.3	33.6	9.2	36.0	6.8
PSIS left	−36.1	6.3	−38.6	9.5	−41.2	7.1
TSIC right	107.4	13.3	106.5	13.5	121.3†	18.6
TSIC left	−112.0	15.7	−115.4	13.9	−112.8	20.3
WTIC right	120.2	13.7	116.3	12.9	129.6†	10.7
WTIC left	−129.0	14.9	−126.6	14.0	−124.2	20.1
Antero-posterior distance (depth)
ASIS right	155.7	16.4	148.7	20.7	149.4	19.7
ASIS left	158.2	18.4	146.6*	16.4	160.6	14.4
PSIS right	12.8	6.7	16.6	7.7	13.9	6.7
PSIS left	8.7	6.0	11.0	6.1	13.9•	7.1
TSIC right	62.5	24.4	73.7	19.7	71.1	19.8
TSIC left	53.9	19.9	63.9	16.0	66.6	20.9
WTIC right	122.2	22.7	115.9	18.4	116.4	19.0
WTIC left	121.0	24.3	115.5	15.8	123.6	19.9
Vertical distance (height)
ASIS right	9.3	25.1	20.4	21.7	19.2	20.6
ASIS left	2.1	25.4	13.8	25.4	13.9	22.2
PSIS right	25.1	14.0	33.6	11.7	36.6•	11.3
PSIS left	21.9	14.9	28.6	10.9	29.4	8.2
TSIC right	69.0	22.1	74.4	18.3	76.6	21.2
TSIC left	61.1	22.2	67.5	23.2	73.1	22.2
WTIC right	54.9	19.8	59.7	18.8	58.6	21.0
WTIC left	50.5	20.8	53.5	24.5	56.9	22.9

^†Statistical difference p < 0.05 between the severe scoliosis group and the able-bodied and moderate scoliosis groups

* Statistical difference p < 0.05 between the moderate scoliosis group and the other groups

^•Statistical difference p < 0.05 between the severe scoliosis group and able-bodied group