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Longitudinal studies are often threatened by difficulties with sample attrition, high rates of which threaten the validity of study findings. The present study examined methodological and participant characteristics associated with sample retention in the Australian Treatment Outcome Study (ATOS) across 3years.Follow-up interviews were conducted at 3-, 12-, 24-, and 36-months post baseline, with follow-up...
Introduction and Aims.The study aimed to ascertain the association between baseline client characteristics, drug use and psychopathology on length of stay, treatment completion and early separation in drug free therapeutic communities.Design and Methods.Prospective longitudinal follow up of 191 treatment admissions to We Help Ourselves drug free treatment services.Results.The median length of stay was 39 days. A total of 17% of treatment entrants dropped out in the first week, and 34% successfully completed the treatment program. Length of stay was independently associated with a previous history of treatment completion (β ...
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