Treatment retention and 1 year outcomes for residential programmes in England

Michael Gossop*, John Marsden, Duncan Stewart, Alexandra Rolfe

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    164 Citations (Scopus)


    This paper reports changes in substance use behaviours at 1-year follow-up, and investigates the relationship between time in treatment and observed outcomes. A total of 408 clients were interviewed at intake to 23 residential treatment programmes, and 286 (70%) of these were interviewed at 1 year. Substantial improvements were found in terms of abstinence from opiates, psychostimulants and benzodiazepines. At 1 year, half of the clients were abstinent from heroin. Reductions in injecting, sharing injecting equipment, heavy drinking and criminal behaviour were found. Critical treatment thresholds were identified using multiple logistic regression analyses. Longer stays in treatment were predictive of better 1 year outcomes. Copyright (C) 1999 Elsevier Science Ireland Ltd.

    Original languageEnglish
    Pages (from-to)89-98
    Number of pages10
    JournalDrug and Alcohol Dependence
    Issue number2
    Publication statusPublished - Dec 1999

    Bibliographical note

    Funding Information:
    The authors wish to thank the Government Task Force to Review Services for Drug Misusers for commissioning NTORS. We would like to thank Dwayne Simpson (Fort Worth, Texas) for his help and advice throughout the project; Colin Taylor (National Addiction Centre) for his statistical advice; and John Merrill (Prestwich Hospital, Manchester) for providing research facilities for NTORS outside London. We wish to acknowledge the contribution of our colleagues Carolyn Edwards, Petra Lehmann, Alison Wilson and Graham Segar, during earlier stages of the project. We would especially like to thank the staff at the participating agencies without whose active support NTORS would not have been possible, and the clients for agreeing to take part in the project. Funding for NTORS was provided by the Department of Health. The views expressed in this paper are those of the authors and do not necessarily reflect those of the Department of Health.


    • 1 year outcomes
    • Multiple logistic regression analyses
    • Residential treatment


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