Scoliosis and Spinal Disorders

Table 9 Frequency of symmetry and asymmetry in girls by age (year).

From: Trunk asymmetry in juveniles

	Thoracic
		Symmetry		1		-1		2		-2		Total
		N	%	N	%	N	%	N	%	N	%	N	%
Age	3	3	0.29									4	0.24
	4	4	0.29	2	1.47							6	0.37
	5	24	2.39	2	1.47							35	2.14
	6	256	21.04	30	22.06	16	13.79	1	16.67			337	20.56
	7	336	22.06	28	20.59	33	28.45	3	50.00			368	22.45
	8	329	29.39	33	24.26	32	27.59	2	33.33			472	28.80
	9	396	24.53	41	30.15	35	30.17			3	100.00	417	25.44
Total		1348	100.00	136	100.00	116	100.00	6	100.00	3	100.00	1639	100.00
	Thoracolumbar
		Symmetry		1		-1		2		-2		Total
		N	%	N	%	N	%	N	%	N	%	N	%
Age	3	2	0.30									4	0.24
	4	4	0.30	2	1.26							6	0.37
	5	24	2.43	2	1.26	1	0.71					35	2.14
	6	257	21.67	31	19.50	17	12.06	2	16.67	2	16.67	337	20.56
	7	328	22.66	31	19.50	30	21.28	5	41.67	4	33.33	368	22.45
	8	321	28.75	42	26.42	47	33.33	3	25.00	2	16.67	472	28.80
	9	399	23.88	51	32.08	46	32.62	2	16.67	4	33.33	417	25.44
Total		1335	100.00	159	100.00	141	100.00	12	100.00	12	100.00	1639	100.00
	Lumbar
		Symmetry		1		-1		2		-2		Total
		N	%	N	%	N	%	N	%	N	%	N	%
Age	3	2	0.31									4	0.24
	4	4	0.31	1	0.56			1	5.88			6	0.37
	5	22	2.43	4	2.23							35	2.14
	6	247	21.14	38	21.23	27	17.31	1	5.88	1	10.00	337	20.56
	7	316	21.85	39	21.79	40	25.64	6	35.29	4	40.00	368	22.45
	8	310	29.37	42	23.46	45	28.85	6	35.29	4	40.00	472	28.80
	9	381	24.59	55	30.73	44	28.21	3	17.65	1	10.00	417	25.44
Total		1282	100.00	179	100.00	156	100.00	17	100.00	10	100.00	1639	100.00

Scoliometer readings are at sitting forward bending position. 1: mild right asymmetry (ATR 1–6o), 2: severe right asymmetry (ATR ≥ 7o), -1 mild left asymmetry (ATR 1–6o), -2: severe left asymmetry (ATR ≥ 7o).

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