“…These trials comprised data from the six trials 30,49,52,53,59 in the primary analysis on the comparison of SSRI (or venlafaxine) + quetiapine with SSRI (or venlafaxine) + lithium, as well as data from the three SSRI (or venlafaxine) + aripiprazole trials compared with SSRI (or venlafaxine)-alone trials. 47,48,50 The data from two of the SSRI + aripiprazole compared with SSRI-alone trials, 47,50 were available as a pooled analysis 62 that was broken down by individual SSRI, and so these data were included as this enabled the exclusion of the data from patients with baseline venlafaxine treatment, thus reducing the amount of potential clinical heterogeneity. The random rather than fixed-effects model was deemed to be the best fitting (DIC 45 vs. 47, respectively) and resulted in a MD of 1.27 (95% CrI -1.88 to 4.68) for SSRI + lithium compared with SSRI + AAP.…”