“…26,30,31,33,35,[37][38][39]42,45,50 Seven analyses from five studies evaluated the effectiveness of EAPs, 26,27,39,49,51 while six studies investigated the impact of employee education. 25,26,28,29,39,43 Less commonly evaluated single interventions were written workplace drug-free policies with five effectiveness evaluations 26,33,39,44,50 and restructuring of employee benefits, with three evaluations from two studies. 34,48 Four studies evaluated multiple interventions independently, 26,33,39,48 and six studies evaluated multiple interventions collectively.…”