Subgroup analysis and investigation of heterogeneity
1. Subgroup analyses
We are interested in whether a brief form of psychoeducation may
have asmany effects as the standard andmore protracted form. For
the purposes of this review we define ’brief ’ as up to 10 sessions
and ’standard’ as 11 sessions ormore. In addition, we are interested
whether a group approach would have similar effects to individual
psychoeducation.We proposed to undertake comparisons only for
primary outcomes to minimise the risk of multiple comparisons