Table 2.

Thoracic ratios (left plus right), of the control group according to spinal level and sex (boys n = 105, girls n = 128)

Spinal Level	BOYS		GIRLS
	Mean	± 1 SD	Mean	± 1 SD	Px (boys/girls)
1	0.526	0.075	0.535	0.079	NS
2	0.678	0.081	0.677	0.084	NS
3	0.777	0.083	0.775	0.088	NS
4	0.858	0.079	0.856	0.088	NS
5	0.920	0.081	0.913	0.088	NS
6	0.970	0.083	0.954	0.089	NS
7	1.005	0.085	0.984	0.087	NS
8	1.032	0.089	1.007	0.090	*
9	1.049	0.096	1.023	0.092	*
10	1.068	0.098	1.039	0.095	*
11	1.070	0.102	1.043	0.095	NS
12	1.053	0.107	1.022	0.099	NS

^xMann-Whitney Test

NS Non Significant

* Statistically significant