longitudinal study that explores the outcomes of drug treatment in England. The overriding finding is that treatment reduces the harmful behaviours that are associated with problem drug use. The majority of treatment seekers received carecoordinated treatment, expressed satisfaction with their care, were retained in treatment beyond three months, reported significant and substantial reductions in drug use and offending, and improvements in mental well-being and social functioning. DTORS has measured a broad range of outcomes. Where comparable, the positive DTORS outcomes are equivalent to, or better than, those observed a decade ago by NTORS, the previous national outcomes study. Alongside the fact that the number of people in contact with treatment services has more than doubled over the last decade, thi
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