Table 10.

Average values (in centimeters) of vertical deviation of the apex for primary scoliosis. Significance tested with paired t test.

Subgroup	N	Before therapy		After therapy		P
		Mean ± SD	Range	Mean ± SD	Range
A1	52	0.9 ± 0.4	0, 3-2, 5	0.3 ± 0.3	0-1, 5	< 0.0001
A2	26	1.0 ± 0.4	0, 5-1, 8	0.4 ± 0.4	0-1, 3	< 0.0001
B1	5	1.2 ± 0.2	1-1, 5	0.9 ± 0.7	0, 5-0, 8	0.52
B2	32	1.5 ± 0.6	0, 2-2, 5	0.9 ± 0.6	0-2, 5	< 0.0001

Significance tested with paired t test.