“…Some interventions were delivered to carers only (Cozolino et al, 1988; McCann et al, 2013; Calvo et al, 2014; Chien et al, 2016a,b), whilst others invited service users to join all or part of the intervention (Goldstein et al, 1978; Rund et al, 1994; Zhang et al, 1994; Linszen et al, 1996; De Giacomo et al, 1997; Rossberg et al, 2010; Miklowitz et al, 2014; O'Brien et al, 2014). Three studies did not mention whether service users attended the sessions or not (Leavey et al, 2004; Gleeson et al, 2010; Browning et al, 2013).…”