Table 3.

Subjects with symmetry of back shape (Mean +/- 2 SD) and severe trunk asymmetry (Beyond +/- 2 SD).

		Boys
		Standing		Sitting
		Count	Col %	Count	Col %	p
ATI T	Mean +/- 2 SD	2696	95.70	2651	94.14	0.008
	Beyond +/- 2 SD	121	4.30	165	5.86
ATI T-L	Mean +/- 2 SD	2701	95.88	2663	94.53	0.018
	Beyond +/- 2 SD	116	4.12	154	5.47
ATI L	Mean +/- 2 SD	2696	95.70	2617	92.93	<0.001
	Beyond +/- 2 SD	121	4.30	199	7.07
		Girls
ATI T	Mean +/- 2 SD	2726	93.04	2732	93.27	0.720
	Beyond +/- 2 SD	204	6.96	197	6.73
ATI T-L	Mean +/- 2 SD	2776	94.74	2739	93.51	0.045
	Beyond +/- 2 SD	154	5.26	190	6.49
ATI L	Mean +/- 2 SD	2818	96.18	2746	93.75	<0.001
	Beyond +/- 2 SD	112	3.82	183	6.25

Distribution of trunk asymmetry (TA) as angles of trunk inclination (ATIs) by forward bending (FB) position, spinal region and gender.