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. Author manuscript; available in PMC: 2013 Jun 1.
Published in final edited form as: Mol Psychiatry. 2011 Sep 20;17(12):1272–1282. doi: 10.1038/mp.2011.100

Figure 4. Meta-Regression of Effect Size of Omega-3 Fatty Acids versus Trial Duration.

Figure 4

Trials of shorter duration tended to show a greater efficacy of omega-3 fatty acid. The size of the circle representing each trial is proportional to its weighting on the overall analysis (β=-0.11 ± 0.04, 95%CI: (-0.20, -0.01), p=0.028, R2=0.37). Trials were weighted using the generic inverse variance method.