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Open Access Highly Accessed Research article

Primary health care delivery models in rural and remote Australia – a systematic review

John Wakerman1*, John S Humphreys2, Robert Wells3, Pim Kuipers1, Philip Entwistle1 and Judith Jones2

Author Affiliations

1 Centre for Remote Health, a joint Centre of Flinders University & Charles Darwin University, PO Box 4066, Alice Springs, Northern Territory, 0870, Australia

2 Monash University School of Rural Health, PO Box 666, Bendigo, Victoria, 3550, Australia

3 Menzies Centre for Health Policy and College of Medicine and Health Sciences, Australian National University, Building 131 Garran Rd, Acton, ACT, 0200, Australia

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BMC Health Services Research 2008, 8:276  doi:10.1186/1472-6963-8-276


The electronic version of this article is the complete one and can be found online at: http://www.biomedcentral.com/1472-6963/8/276


Received:5 March 2008
Accepted:29 December 2008
Published:29 December 2008

© 2008 Wakerman et al; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background

One third of all Australians live outside of its major cities. Access to health services and health outcomes are generally poorer in rural and remote areas relative to metropolitan areas. In order to improve access to services, many new programs and models of service delivery have been trialled since the first National Rural Health Strategy in 1994. Inadequate evaluation of these initiatives has resulted in failure to garner knowledge, which would facilitate the establishment of evidence-based service models, sustain and systematise them over time and facilitate transfer of successful programs. This is the first study to systematically review the available published literature describing innovative models of comprehensive primary health care (PHC) in rural and remote Australia since the development of the first National Rural Health Strategy (1993–2006). The study aimed to describe what health service models were reported to work, where they worked and why.

Methods

A reference group of experts in rural health assisted in the development and implementation of the study. Peer-reviewed publications were identified from the relevant electronic databases. 'Grey' literature was identified pragmatically from works known to the researchers, reference lists and from relevant websites. Data were extracted and synthesised from papers meeting inclusion criteria.

Results

A total of 5391 abstracts were reviewed. Data were extracted finally from 76 'rural' and 17 'remote' papers. Synthesis of extracted data resulted in a typology of models with five broad groupings: discrete services, integrated services, comprehensive PHC, outreach models and virtual outreach models. Different model types assume prominence with increasing remoteness and decreasing population density. Whilst different models suit different locations, a number of 'environmental enablers' and 'essential service requirements' are common across all model types.

Conclusion

Synthesised data suggest that, moving away from Australian coastal population centres, sustainable models are able to address diseconomies of scale which result from large distances and small dispersed populations. Based on the service requirements and enablers derived from analysis of reported successful PHC service models, we have developed a conceptual framework that is particularly useful in underpinning the development of sustainable PHC models in rural and remote communities.

Background

One third of Australia's population lives outside its major cities [1]. Of this non-metropolitan population, almost twenty percent is dispersed across more than 1,500 rural and remote communities with fewer than 5,000 residents. Collectively these communities have a population the size of Sydney, Australia's largest city. Almost three-quarters of these small communities lie in the rural and remote areas furthest from large population centres [2]. More than one-third of these small communities are losing population and experiencing economic hardship [3-5].

People living in small rural and remote communities of Australia face significant health disadvantage. Generally, mortality and illness levels increase with distance from major cities [1]. Moreover, these communities are characterised by higher hospitalization rates and higher prevalence of health risk factors compared with metropolitan areas [1,6,7]. These rural and remote communities are further disadvantaged by reduced access to primary health care (PHC) providers and health services (in part a function of health and medical workforce shortages), leading in turn to lower utilisation rates than in urban areas and consequent poorer health status for rural residents [1].

Often these isolated rural and remote communities are too small to support traditional models of health delivery locally, so residents must access care from larger urban centres. Unfortunately, access to health services provided in larger centres remains a problem for many residents of isolated settlements. In many cases, their inability to access health services when required results in health needs not being adequately met, lack of continuity of care and an absence of monitoring of the effectiveness of services in terms of health outcomes [1]. It is clear that 'models of care in rural and remote areas must differ from those in metropolitan communities, incorporating strategies to account for these problems' [8].

In order to address these access and service problems, specific measures targeting rural health featured in annual national government budgets from the early 1990s. In 1994 the Australian Health Ministers' Conference (AHMC) endorsed the first National Rural Health Strategy [9], which was renewed in 1999 with the release of 'Healthy Horizons, a framework to guide the development of health programs and services in rural, regional and remote Australia'[6]. Since 1999 the Commonwealth has made two major budgetary commitments to rural health: in 2000 (More Doctors-Better Services) and 2004 (Rural Health Strategy) [10,11]. These initiatives constitute a series of workforce enhancement measures, principally targeting the medical workforce.

Policy-makers are under increasing pressure to strengthen the link between evidence, policy development and program implementation. Although numerous approaches and models of service delivery have been trialled in rural and remote areas since the first National Rural Health Strategy, inadequate evaluation of these initiatives has resulted in failure to garner knowledge, which would facilitate the establishment of evidence-based service models, sustain and systematise them over time and facilitate transfer of successful programs to other jurisdictions [12-14].

The objective of this research was therefore to systematically review the available published literature describing innovative models of comprehensive primary health care in rural and remote Australia since the development and publication of the first National Rural Health Strategy in order to identify what rural and remote primary health care models work well, where and why.

Methods

Whilst systematic reviews of mixed qualitative and quantitative papers aimed at informing policy can be complex and do not always accord with a pure methodological approach, our experience shows how they can still be conducted rigorously and effectively within constraining circumstances [15]. This systematic review adopted some elements of a 'realist synthesis' approach in its engagement with policymakers, reliance on 'grey' literature and in the development of a theoretical framework to explain what health service models worked well, in which location they worked and why they worked [16]. To assist in the development and implementation of the study a Reference Group was formed, comprising eleven recognised experts in rural and remote health, health economics, consumer issues, evaluation, PHC service provision and government policy making. Two international health services researchers were included in the Reference Group.

This paper addresses two key aspects of the systematic review. What were the key remote and rural PHC models in Australia since the first National Rural Health Strategy, and what specific structural or financial issues did they address? Secondly, what are the characteristics of appropriate PHC service models for rural and remote Australia?

Peer-reviewed ('black') publications were identified from electronic databases: Medline, CINAHL, EBM Reviews, and AMED through the metadatabase OVID, APAIS-Health, ATSIhealth, H&S, Meditext and RURAL through the metadatabase INFORMIT, and EMBASE. The research questions and relevant search terms were developed iteratively, in consultation with the Reference Group, and refined during the literature search process. 'Grey' literature was identified pragmatically from works known to the researchers and Reference Group members, from reference lists and from web searches of government departments, workforce agencies, professional associations, universities and similar organisations. The search for and review of literature was divided across two research sites – one rural and one remote – based on familiarity with specific literature. (The full detailed search strategy is available in the funder's web version report http://www.anu.edu.au/aphcri/Domain/RuralRemote/Final_25_Wakerman.pdf webcite).

Table 1 shows the final inclusion/exclusion criteria which defined the scope and number of publications reviewed.

Table 1. Inclusion and exclusion criteria

Figure 1 summarises the selection process. Two reviewers independently read a total of 5,391 non-duplicate abstracts, comprising 3,830 'rural' and 1,561 'remote' abstracts. A sample comparison of 324 abstracts noted 80% concurrence between two readers. In instances where reviewers failed to reach initial agreement, a decision regarding selection was made on the basis of discussion and consensus.

thumbnailFigure 1. Selection process for inclusion of papers in systematic review.

As a result, 111 'rural' and 113 'remote' full papers were retrieved. Nine rural papers could not be retrieved due to inaccurate or incomplete citations. A further 35 'rural' papers and 96 'remote' papers were discarded as the full papers did not satisfy inclusion criteria. The remaining 76 rural papers and 17 remote papers were read and data extraction forms were completed. Data included location, service population size and model description. Data were assessed for quality and relevance. While quality was a consideration, relevance (as reflected in the inclusion and exclusion criteria) rather than quality was adopted as the principal decision criterion for inclusion.

A total of 59 items of 'grey' literature were also retrieved as full documents for 'rural' and 47 for 'remote'. Of the 'rural' documents, 49 dealt with models of service delivery. A further eight contained context-relevant information and two did not meet the inclusion criteria. Of the 47 'remote' documents, 19 met the inclusion criteria. Data were extracted using data extraction tables specifically developed for the systematic review. Of the total of 161 papers reviewed and analysed, only an indicative subset is referenced here. The full list is available in the funder's web version report (URL detailed above).

Results

Synthesis of these data comprised progressive readings of each document, and the identification, categorisation and comparison of recurring themes across documents, involving the research team and the Reference Group. This allowed the development of a typology of models of PHC within five broad categories, each with a different rationale and addressing particular sentinel issues (see Table 2). Thirty six of the 161 papers constituted evaluations. Evaluation measures varied widely between studies. Some of these are summarised in Table 2.

Table 2. Typology of rural and remote PHC models

Drawing on information about model type, location and service population size, it was evident that in general the different categories of models relate to different geographical contexts, with a notable association with population size and remoteness. While larger rural communities are generally able to support a greater variety of local, discrete, more specialised health care services, increasing remoteness and diminishing population size and density constrain service model options and increase the impetus for the development of more integrated and comprehensive primary health services in order to maximise the economies of scale and use of existing health workforce.

'Discrete primary care services' are delivered from an identifiable site located in the community they serve (for example, [17-22]). Their primary purpose is to sustain a general practitioner service in those rural and larger remote communities experiencing significant difficulties in recruiting and in retaining an adequate general practitioner workforce. They accomplish this through ensuring attractive practice opportunities for doctors and continuity of medical care for the community when doctors leave. Exemplars of this type are characterised by practice infrastructure owned and maintained by an entity such as a local council, university or other incorporated body, such that incoming general practitioners can execute both an 'easy entry' on recruitment and 'gracious exit' free of concern about return on capital investment.

'Integrated services' offer a range of integrated primary health care services from sites located in the communities they serve [23-32]. Their scope is significantly broader than general practitioner services, but may include coordination with general practitioner services. Integrated services provide single point access to a range of services and sufficient numbers of health professionals to ensure mutual professional support. Because these communities cannot usually sustain necessary allied health and specialist services in a discrete form, this model enables the population to sustain such a service.

'Integrated services', which usually emerge from a community health service or allied health team approach to primary health care services, comprise a variety of models. For example, the 'shared care' model of mental health care addresses access to and co-ordination of service across primary and specialist care [23,24]. The Multi Purpose Services (MPS) program provides a specific model of Commonwealth/state financing which allows for the co-location and common administration of acute care, residential aged care, community and allied health services, rehabilitation and health education activities [29-32].

'Comprehensive primary health care services' (CPHC) are best typified in Australia by the Aboriginal Community Controlled Health Services (ACCHSs). ACCHSs have adopted a primary health care approach to healthcare delivery over the past 30 years, and provide some of the best examples of this model [33-39]. CPHC services aim to improve health outcomes through better access to services and by addressing underlying social determinants of health. The main impetus for the development of ACCHSs has come from poor service access and availability, inadequate funding of services, low acceptance of mainstream services by Aboriginal patients, the poor health status of the Aboriginal population, and a desire for community control of these services. CPHC services are broader in scope than most 'Integrated Services' models. They include primary clinical care, preventive and health promotion activity, as well as education and development in relation to workforce training and governance/community capacity building.

'Outreach models' are characterised by the periodic supply of services from one location which has services to other locations which do not [40-43]. The arrangement may be either centrally located services providing services to satellite communities though a 'hub and spoke' arrangement, or some other visiting mechanism, such as where a general practitioner resident in one community may visit a second community for short periods, or services are supplied on a fly-in fly-out basis. Outreach services thus improve access to health services for widely dispersed and isolated populations and often co-exist with other integrated and comprehensive PHC services.

'Telehealth' and 'telemedicine' have been widely used in Australia over the past decade as a means of overcoming problems of access to health care and the shortage of health professionals in rural and remote areas [44-49]. The extent to which telehealth and telemedicine constitute a 'model' of care in its own right is a moot point. In many cases, telemedicine and telehealth are used to augment other service delivery models.

Discussion

This review represents the first comprehensive synthesis of published literature relating to Australian rural and remote models of PHC. The resultant typology of these models indicates that with increasing remoteness and decreasing population size and density, different model types assume prominence in addressing key PHC principles relating to accessibility, appropriateness and sustainability. The different models provide some guidance as to appropriate options for different settlement patterns in rural and remote areas. Where discrete general practice models can be sustained in sufficiently large country towns, alternative hub-and-spoke models may be required for delivering a full range of PHC services to smaller, more isolated communities. The need for ensuring that a comprehensive range of well-coordinated PHC services is locally accessible has become increasingly important as the prevalence of chronic disease grows with the ageing of Australia's rural and remote population. This typology is not prescriptive, nor are these models mutually exclusive, nor are they necessarily unique to rural and remote areas. Hence, for example, a hub-and-spoke model may share some aspect of shared care or similar collaborative arrangement, while a discrete GP model may provide an outreach service to outlying populations.

Underpinning all rural and remote models is Australia's ineluctable geography and demography. Beyond the coastal population centres, traditional models of health service provision have struggled to address diseconomies of scale which can result from large distances and small dispersed populations. Reportedly successful models, such as those that have emerged from this review, are able to aggregate a critical service population mass, whether it is a discrete town population or dispersed across a region. Evidence from the papers and discussion involving the Reference Group suggests that a critical minimum population base of about 5,000 inhabitants for rural regions and 2,000–3,000 people for remote communities is necessary to support a comprehensive and sustainable range of PHC services. The provision of PHC services to rural and remote communities smaller than these populations requires a model with characteristics that enable it to capture the necessary population aggregation required to support minimum service threshold requirements and thereby ensure adequate access to care.

Whilst there are different models that have been developed for different locations, a number of key environmental enablers and essential service requirements are common across the model types. Our synthesis has used the best available evidence to develop a conceptual framework that includes these service requirements and enablers for sustainable PHC services in small rural and remote communities (Tables 3 &4). This framework, endorsed and validated by the Reference Group, is particularly useful in underpinning the development of sustainable rural and remote PHC models.

Table 3. Essential service requirements and environmental enablers for PHC models in rural and remote communities

Table 4. Environmental enablers and essential service requirements for the 'Easy entry-gracious exit' discrete model

Essential elements of sustainable PHC services for small rural and remote communities include a number of significant environmental enablers which are crucial in preparing an environment for change, together with a number of essential requirements that need to be met in order to improve access to PHC services. The enablers are: a supportive policy which ensures sustained service funding; co-ordination of policy and funding across national and state governments; and an appropriate level of community readiness for involvement in planning, implementation and monitoring of health service activity. The essential service requirements focus specifically on workforce – numbers and mix of staff; funding; governance, management and leadership; linkages, which include integration of services within an organisation and external linkages with other key organisations to ensure continuity of care; and infrastructure – physical infrastructure as well as adequate information and communication technology. These essential requirements are inter-related. Importantly, evidence from the systematic review showed that apparently successful examples of these models addressed the full range of essential requirements, with workforce, the focus of much current rural health policy in Australia, diminishing as such a critical barrier to sustainability. An example of how these factors apply to one discrete model is presented in Table 4.

This evidence-based framework provides principles or guidelines to guide the decisions of policy-makers in planning appropriate PHC service for small rural and remote communities [50,51]. These principles are important if policy is to provide an appropriate systematic framework for the design and delivery of PHC services, rather than a collection of ad hoc responses to felt needs.

Conclusion

This study was predicated on (1) the ongoing need to improve poor health outcomes in rural and remote communities through improved access to health services and (2) the belief that the time is ripe to build upon the significant achievements in relation to innovative models of PHC since the first National Rural Health Strategy. Rather than seeking more and more innovation, progress will be made by garnering the knowledge gained since 1993 and enhancing service access through the wider implementation of models that have been shown to be successful.

Unfortunately, despite many descriptive accounts, comprehensive service evaluations have been lacking. As a result, our systematic review of the Australian literature does not reflect a well-established body of knowledge based on rigorous and comprehensive evaluations but rather a preponderance of largely descriptive studies in the published literature. This paucity of evaluations is hardly surprising given a policy environment that has been characterised by a notable absence of a national PHC policy, continual funding of 'innovative' pilots, and a dominant focus on workforce issues, rather than the strategic development of comprehensive models of PHC service delivery.

The systematic review did, however, highlight a number of exemplary models of PHC service delivery which have been evaluated and shown to be successful in meeting their stated goals [20,24,26,31,37,41]. The conceptual framework that emerged from this review provides an important paradigm to underpin future policy development and program funding. The identified 'environmental enablers' assist us to understand what a policy context conducive to positive change might look like. The 'essential service requirements' which characterise the success of these exemplars are amenable to generalisation, adaptation and evaluation in other regions. This is the current policy challenge and currently the subject of further research.

Competing interests

The authors declare that they have no competing interests.

Authors' contributions

JW, JSH, RW and PK conceptualised and designed the study. All authors were involved in the literature searches, extraction and analysis of data. JW wrote the first draft and all authors contributed to the final draft.

Acknowledgements

We acknowledge the Australian Primary Health Care Research Institute (APHCRI) and its Director, Professor Nicholas Glasgow. APHCRI is supported by a grant from the Australian Government Department of Health and Ageing under the Primary Health Care Research, Evaluation and Development Strategy. APHCRI has pioneered a research approach which has entailed interaction with the other research 'spokes' working on systematic reviews, as well as key Department of Health and Ageing staff, in order to facilitate the research transfer process.

We also acknowledge the expert assistance of Jessica Tyndall, Liaison Librarian at the School of Medicine Library at Flinders University, and the contribution of Lisa Lavey at Monash University.

Finally, we are very grateful to the members of our Reference Group for their active and enthusiastic participation. They were Kim Snowball, Chris O'Farrell, Mick Gooda, Alma Quick, Chris Harrington, Gordon Gregory, Brita Pekarsky, Ian Cameron, David Lyle, Raymond Pong and Martha MacLeod.

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Pre-publication history

The pre-publication history for this paper can be accessed here:

http://www.biomedcentral.com/1472-6963/8/276/prepub