Table 1.

Descriptive statistics (Mean ± SD) in Control, heterogeneous-HIQ (Het-HIQ) and homogeneous-HIQ (Hom-HIQ) groups.

	Control	(n = 13)	Het-HIQ	(n = 24)	Hom-HIQ	(n = 20)
Age	10.5 ± 1.2		10.5 ± 1.4		10.2 ± 1.2
FSIQ	105.2 ± 8.8		129.4 ± 10.6	***	139.9 ± 11.1	***###
VCI	108.5 ± 6.9		144.5 ± 7.3	**	138.6 ± 11.4	**
PRI	99.8 ± 8.3		117.5 ± 12.0	*	136.4 ± 7.9	*#
WMI	96.1 ± 10.1		110.0 ± 14.0	*##	121.5 ± 16.2	***
PSI	104.0 ± 15.1		104.1 ± 13.8		114.6 ± 17.4

^*p < 0.05;

^**p < 0.01;

^***p < 0.001 between HIQ and Control groups;

^#p < 0.05;

^##p < 0.01;

^###p < 0.001 between Hom-HIQ and Het-HIQ groups.