Table 1.

Average scores of disease and its changes in the three study groups, before and after the treatment

Group	Number	Pre-treatment scores	Post-treatment scores	Changes	P-value *
		Mean ± SD †	Mean ± SD	Mean ± SD
Ritalin ®	29	24.20 ± 9.76	17.81 ± 10.32	6.39 ± 5.39	0.001
Omega-3	28	25.89 ± 9.96	18.44 ± 8.31	7.44 ± 6.80	0.001
Placebo	28	22.58 ± 8.52	22.66 ± 8.01	-0.07 ± 2.66	0.888

^* ANOVA;

^† Standard deviation