Table 3.

The effects of omega-3 fatty acid supplementation on depression score of patients with bipolar disorder

Parameters	Groups	n	Before	After	Changes	P*
Depression score	Omega-3	30	18.93±9.04	13.70±5.32	−5.23±3.22	<0.001
	Placebo	30	19.36±9.72	20.43±8.26	1.06±5.22	0.590
	P**		0.128	<0.001

*P value for independent t-test, **P value for dependent t-test. The results are reported as mean±SD. SD=Standard deviation