"The Drug Treatment Outcomes Research Study (DTORS) was one example of European research with encouraging results regarding employment (Jones et al., 2009). This study investigated drug use, health and psychosocial outcomes in 1 796 English drug users attending a range of different types of treatment service. Follow-up interviews were conducted between 3 and 13 months after baseline (soon after initial treatment entry). Regardless of the type of treatment received or drug use outcomes, employment levels increased from 9 % at baseline to 16 % at follow-up. This was accompanied by a corresponding increase in the amount of legitimate income earned per week. The proportion reporting being unemployed but actively looking for work decreased slightly from 27 % to 24 %, reflecting the increase in employment and a 5 percentage point increase in those reporting being unable to work (because of long-term sickness or disability). The proportion of participants classed as unemployed and not looking for work also fell from 24 % to 11 %. Treatment attendance was also associated with changes in housing status; the proportion staying in stable accommodation increased from 60 % to 77 % at follow-up. It should be noted that the findings of this study were weakened by use of a non-experimental design, failure to separate outcomes according to client type and treatment modality, and insufficient detail on the nature of the employment obtained."
European Monitoring Centre for Drugs and Drug Addiction. EMCDDA Insights Series No 13: Social reintegration and employment: evidence and interventions for drug users in treatment. Luxembourg: Publications Office of the European Union, 2012.