Table 3.

Average scores of hyperactivity-impulsivity type and its changes in the three study groups, before and after the treatment

Group	Number	Hyperactivity-impulsivity
		Pre-treatment scores	Post-treatment scores	Changes	P-value *
		Mean ± SD †	Mean ± SD	Mean ± SD
Ritalin ®	8	17.25 ± 2.72	08.37 ± 4.35	-8.87 ± 1.16	0.005
Omega-3	7	18.28 ± 2.82	12.28 ± 4.36	-6.00 ± 3.14	0.002
Placebo	6	15.58 ± 1.46	17.16 ± 1.29	-1.58 ± 0.86	0.006

^* ANOVA;

^† Standard deviation