Meta-analyses of studies examining the effect of psychological treatment for depression (Additional and sensitivity analyses).

* p < .05; ** p < .01; Italic numbers indicate a non-significant trend (p < .10). a difference between the effect size point estimates of the published studies only and the published + unpublished studies, calculated using 5 decimals. b 1 degree of freedom. c Sensitivity analysis changing psychotherapy ranks in the published study, which was intended to minimize allegiance effects [47]. d Sensitivity analysis counting [39] that does not report effect size data as unpublished. e Sensitivity analysis including the unpublished Gottlieb study, for which the effect size was estimated to be zero because of missing data. Note: NSt = number of studies; PT = psychological treatment; Qbetw. = Q between value.
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