Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Early exit: Estimating and explaining early exit from drug treatment | Harm Reduction Journal BioMed Central Research Early exit Estimating and explaining early exit from drug treatment Alex Stevens 1 Polly Radcliffe1 Melony Sanders2 and Neil Hunt1 3 Address 1EISS Keynes College University of Kent Canterbury Kent CT2 7NP UK 2The Institute for Criminal Policy Research 8th floor Melbourne House King s College London Strand London WC2R 2LS UK and 3KCA UK 44 East Street Faversham Kent ME13 8AT UK Email Alex Stevens - Polly Radcliffe - Melony Sanders - Neil Hunt - Corresponding author Open Access Published 25 April 2008 Received 1 August 2007 _IIAOO J-IA I I ox 11 m -re 11 r I- Accepted 25 April 2008 Harm Reduction Journal 2008 5 13 doi 1477-7517-5-13 This article is available from http content 5 1 13 2008 Stevens et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background Early exit drop-out from drug treatment can mean that drug users do not derive the full benefits that treatment potentially offers. Additionally it may mean that scarce treatment resources are used inefficiently. Understanding the factors that lead to early exit from treatment should enable services to operate more effectively and better reduce drug related harm. To date few studies have focused on drop-out during the initial engagement phase of treatment. This paper describes a mixed method study of early exit from English drug treatment services. Methods Quantitative data n 2 624 was derived from three English drug action team areas two metropolitan and one provincial. Hierarchical linear modelling HLM was used to investigate predictors of early-exit while .