Background: There is international interest in whether improved primary care can lead to a more rational use of health resources and whether the use of a national digital health record system by primary health care professionals can help achieve this goal. This trial (CHIME-GP) will investigate whether a multifaceted education intervention in an Australian general practice setting on the use of a national digital health record system leads to reductions in health-service utilisation and costs.
Methods: The trial will be undertaken in Australian general practices. The aim of the research is to evaluate the effectiveness of a web-based educational intervention for general practitioners, regarding use of a national digital health record system, My Health Record (MHR), and rational use of medicines, pathology and imaging. Our target is to recruit 120 general practitioners from urban and regional regions across Australia. We will use a mixed methods approach incorporating a three-arm pragmatic cluster randomised parallel trial and a prospective qualitative inquiry. The effect of the intervention in each arm will be assessed, using the other two arms as controls. The evaluation will synthesise the results embedding qualitative pre/post interviews in the quantitative results to investigate implementation of the intervention, clinical behaviour change and mechanisms such as attitudes, that may influence change. The primary outcome will be an economic analysis of the cost per 100 consultations of selected prescriptions, pathology and radiology test ordering in the six months following the intervention compared with six months prior to the intervention. Secondary outcome measures include the rates per 100 consultations of selected prescriptions, pathology and radiology test ordering six months pre and post intervention; and comparison of knowledge assessment tests pre and post intervention.
Discussion: The trial will produce robust health economic analyses on the evidence on educational intervention in reducing unnecessary prescribing, pathology and imaging ordering, and in improving the use of MHR. In addition, the study will contribute to the evidence-base concerning the implementation of interventions to improve the quality of care in primary care practice.
Trial registration: Australian New Zealand Clinical Trials Registry ACTRN12620000010998. Registered on 09 January 2020.
http://www.ANZCTR.org.au/ACTRN12620000010998.aspx