• Belinda Morley, Jane Pirkis, Kristy Sanderson, Philip Burgess, Fay Kohn, Lucio Naccarella, and Grant Blashki.
• Program Evaluation Unit, School of Population Health, University of Melbourne, Melbourne, Vic. 3010, Australia. bcmorley@unimelb.edu.au
• Aust N Z J Psychiatry. 2007 Feb 1;41(2):142-9.

ObjectiveOne hundred and eight Access to Allied Psychological Services projects have been funded under Australia's Better Outcomes in Mental Health Care programme since July 2001. All projects are run by Divisions of General Practice and enable general practitioners (GPs) to refer patients to allied health professionals for evidence-based care. They differ in the models they use to retain, locate and direct referrals to their allied health professionals. This paper examines the extent to which the projects are achieving positive patient outcomes, and explores the association between different models of service delivery and varying levels of patient outcomes.MethodThe paper draws on two data sources (a purpose-designed minimum dataset and a survey of models of service delivery) to examine the level of patient outcomes within and across projects, and variations in the level of patient outcomes by models of service delivery.ResultsThe projects are achieving positive effects and these are mostly of large or medium magnitude. The projects do not differ markedly in terms of the patient outcomes they are achieving, despite differences in the models of service delivery they are using. However, those projects implementing a direct referral model, where the GP refers the patient directly to the allied health professional, have significantly greater effect sizes, indicating that they are achieving greater improvements in patient outcomes. In addition, there are non-significant trends toward direct employment of allied health professionals by Divisions being predictive of greater improvements in patient outcomes, and delivery of services from allied health professionals' own rooms being predictive of weaker patient outcomes.ConclusionsOverwhelmingly, the Access to Allied Psychological Services projects are having a positive impact for patients in terms of their level of functioning, severity of symptoms and/or quality of life. Preliminary indications suggest that a service delivery model incorporating the use of a direct referral system may be associated with superior outcomes. The findings are discussed in the light of the imminent listing of psychologists' services on the Medicare Benefits Schedule.

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