Table 8.

Values of the distance (in centimeters) from the vertical occiput line to the gluteal sulcus. Significance tested with Wilcoxon matched pairs test.

Subgroup	N	Before therapy		After therapy		P
		Mean ± SD	Range	Mean ± SD	Range
A1	52	1.3 ± 1.4	0-2, 5	0.1 ± 0.2	0-0, 8	< 0.0001
A2	26	1.1 ± 0.6	0-2, 5	0.2 ± 0.2	0-0, 6	< 0.0001
B1	5	0.5 ± 0.6	0-1, 5	0.1 ± 0.2	0-0, 2	0.25
B2	32	1.4 ± 0.8	0-3, 4	0.7 ± 0.6	0-2, 5	< 0.0001

Significance tested with Wilcoxon matched pairs test.