Figure 6. Forest Plot of Omega-3 Fatty Acids for Depression Stratified by Method of Accounting
for Dropouts
Omega-3 fatty acids tended to shower greater efficacy in trials that utilized completers
analysis compared to trials that employed a modified intention-to-treat or an intention-totreat
analysis (Test for subgroup differences: Chi2 = 9.5, df = 1 (P = 0.009), I2 = 79%).