Region Of South Australia Research Articles

An investigation of regional public transport spend in Australia

This paper describes the outcome of a study to investigate the regional public transport spend in each state of Australia. The objective is to derive a reliable figure for comparison and the core metric used is spend per capita. The study assessed publicly available data on public transport spend, followed by a series of consultations with key staff from state bus associations and governments. The analysis was conducted separately for metropolitan (metro) and regional areas and then the regional data were further examined. While the Northern Territory (NT), Tasmania (TAS) and regional South Australia (SA) completely rely on bus services, Victoria (VIC) stands out as the state with the highest public transport spend per head in regional areas with robust train and bus networks which deliver the highest patronage. Western Australia (WA) is the state with the highest bus transport spend per head ensuring relatively high patronage despite the low population density. The study identifies low public transport patronage in regional areas as being influenced by low spending per capita and poor connectivity. It recommends prioritizing improvements in connectivity, multi-modal networks, and opening school buses to the general public. Additionally, funding strategies should focus more on patronage trends linked to spend rather than overemphasizing population density. Further, the study reveals that publicly available data seldom clearly segregates public transport spending in terms of regional and metro expenditure, which would lead to inefficiencies when assessing spatial equity in public transport provision.

‘Zero dollars and zero cents’: resourcefulness and DIY music scenes in rural and regional South Australia

ABSTRACT This article examines the role of ‘resourcefulness’ in small rural and regional music scenes. Drawing on case study fieldwork and ethnographic research in Port Lincoln, South Australia, I demonstrate the practices and tactics employed by participants in Port Lincoln’s local music scene. This research highlights the capacity of these scenes to ‘make do’ and adapt to change and disruption, while also emphasizing their agency. While rural and regional communities are often praised for their resilience, this rhetoric also effectively relieves policymakers of any urgency in addressing a lack of infrastructure and declining populations. As a result, the music industries in rural and regional Australia must adapt to the limitations of their existing infrastructure, capitalizing instead on strong community bonds to sidestep traditional, capitalist music industry structures. Music scenes in these regions are therefore characterized by a strong, grassroots but often fragmented approach to music scene production.

Better understanding ocean awareness: Insights from young people

Marine Protected Areas (MPAs) are a key conservation policy tool designed to provide protection of ocean and coastal ecosystems globally. Public engagement and awareness of MPAs, especially in regional communities, is critical in improving outcomes and ultimately their overall acceptance. Engaging with young people is essential as they are key thought shifters and positive movers in the future of MPAs, and environmental issues broadly. Further, it is the younger generation that must live with the conservation choices that are being made now in the future. Therefore, it is essential that we require a detailed understanding of young people’s knowledge of MPAs, and their key pathways of gathering information to do with the environment broadly. In turn, educators, marine park managers and policy makers can utilise these findings to better inform young people on key environmental issues. Here we present results from a survey that explored the knowledge and awareness of young people (ages 11 – 17) in relation to marine environments. School students (N=314) from coastal regions of South Australia were asked about their knowledge of MPAs, the value placed on the marine environment, and their key sources for information on environmental issues. Results indicate that broadly there were low levels of understanding of MPAs, with only 30% of students acknowledging they knew what MPAs were. This lack of understanding surrounding MPAs indicates the necessity for enriched communication strategies to improve awareness of threats placed on marine environments, and the roles that MPAs play in helping to combat these threats.

The dynamic capabilities approach and regional business resilience: an Australian case study

ABSTRACT The frequency and severity of major disruptions (e.g., disasters, epidemics/pandemics) are increasing, significantly impacting business survival in regional areas. Using the dynamic capabilities approach, this paper reports on the recovery pathways and resilience of Australian regional businesses during the recent COVID-19 pandemic. A case study approach is adopted to explore the capabilities through which regional businesses can plan for, recover from, and develop strategies for building resilience. Using the data from 18 semi-structured interviews with business owners operating in different industry sectors and a web-based forum with 10 key stakeholders in regional South Australia, a dynamic capabilities resilience framework is developed. Results suggest that the dynamic capabilities approach during crises can become integral to the long-term business recovery of regional Australian businesses. By revealing both the determinants of business survival and the constraints regional businesses face during major crises, the study contributes information that businesses, government and non-government agencies that support them can use to develop effective recovery pathways, which is central to the future sustainability of regional Australia.

The changing psychiatry workforce in Australia: Still lacking in rural and remote regions.

There is a long standing and worsening shortage of psychiatrists in Australia particularly in rural areas. The majority of psychiatrists work in major cities. To identify recent trends in the Australian rural psychiatrist workforce compared with the metropolitan workforce. We descriptively analysed population-level data from the National Health Workforce Data Set (NHWDS), the Australian Institute of Health and Welfare (AIHW) and the Australian Bureau of Statistics (ABS). A descriptive analysis of the numbers (count) and gender of psychiatrists from 1995 to 2022 working in Australia was conducted. For the period 2013 to 2022, we analysed for rurality, gender, years' experience, hours worked, Medicare-subsidised services provided and proportions of Specialist International Medical Graduates (SIMG) by sex, with a focus on the rural workforce. For international comparison, psychiatrist numbers were obtained for other OECD countries. The number of psychiatrists working in Australia, as per NHWDS and AIHW, was quantified. We analysed trends in demographics, hours worked and rurality of psychiatrists working in Australia in a serial cross-sectional design. Most psychiatrists are maldistributed to major cities, while outer regional and remote areas have few resident psychiatrists. Outer regional New South Wales (NSW) and South Australia (SA) have the lowest numbers of psychiatrists per capita. The full-time equivalent (FTE) of psychiatrists per 100 000 has increased from 12.6 in 2000 to 15.2 in 2022. However, the average hours worked by psychiatrists has declined. In total, available psychiatrist hours worked per 100 000 population has increased by 6.1% since the beginning of the millennium. Rural areas in NSW and SA have the greatest shortage of psychiatrists. Specialist International Medical Graduates and females (43% of the overall workforce) are the predominant workforce in rural areas. Although Medicare-subsidised services per 1000 people have increased in rural areas, they remain lower than for those living in major cities. There remains an acute shortage of psychiatrists in many regional and remote areas of Australia, with an increasing proportion of SIMGs and females working in these areas, in the context of future increased demand.

'It sort of broke me': A thematic analysis of the psychological experiences and coping strategies employed by Australian fire-affected farmers.

People exposed to bushfires are known to be at heightened risk of experiencing mental health challenges. When farms are impacted, farmers often risk losing not only their homes but also their businesses, containing their livestock, infrastructure and identities. To understand the psychological experiences of farmers who have been exposed to fires on their farms and identify the coping strategies they already employ to recover and prepare psychologically for future bushfires. In-depth, semi-structured interviews were conducted face-to-face or via Zoom. Thematic analysis was used to analyse the data, using a descriptive, essentialist approach. Sixteen farmers and/or their spouses (50% female; median age of 50.8 years), who owned and/or played an active role in the operation of a farming or pastoral enterprise and had been affected by a farm fire within the last 20 years, participated. Participants resided in inner regional, outer regional and remote South Australia and New South Wales. Seven overarching themes and 22 subthemes resulted: (1) intense emotions in the aftermath, (2) long-term psychological challenges, (3) deliberate focus on organising, prioritising and completing recovery-focused tasks, (4) importance of seeking and/or accessing support to rebuild, (5) adopting a positive attitude and outlook, (6) (dis)engaging from/with community and social connection and (7) various strategies employed to self-regulate emotions. This study demonstrates the unique set of psychological challenges Australian farmers experience in the wake of a farm fire and the coping strategies they report using to help them manage. Findings will inform the development of contextually and culturally appropriate bushfire recovery and preparedness initiatives that are tailored to meet the unique needs of farmers and build upon their existing strengths.

A probabilistic forecast methodology for volatile electricity prices in the Australian National Electricity Market

The South Australia region of the Australian National Electricity Market (NEM) displays some of the highest levels of price volatility observed in modern electricity markets. This paper outlines an approach to probabilistic forecasting under these extreme conditions, including spike filtration and several post-processing steps. We propose using quantile regression as an ensemble tool for probabilistic forecasting, with our combined forecasts achieving superior results compared to all constituent models. Within our ensemble framework, we demonstrate that averaging models with varying training-length periods leads to a more adaptive model and increased prediction accuracy. The applicability of the final model is evaluated by comparing our median forecasts with the point forecasts available from the Australian NEM operator, with our model outperforming these NEM forecasts by a significant margin.

Law beyond the glass skyscrapers: Encouraging law students to embrace regional life and practice

The shortage of law graduates outside the city raises adverse implications for access to justice for Australian regional, rural and remote (RRR), and Aboriginal communities. This article discusses an extracurricular educational initiative implemented at the University of Adelaide Law School in 2021 and 2022 geared towards contributing to a solution for this problem. The initiative consisted of a series of immersion and exposure trips throughout regional South Australia for law students with interest in pursuing regional employment. This article discusses the initiative, the pedagogical rationale as well as the impact of the program, providing a blueprint for other universities considering similar initiatives.

'There is no other option': Exploring health care providers' experiences implementing regional multisite midwifery model of care in South Australia.

In the past 30 years, 60% of South Australia's rural maternity units have closed. Evidence demonstrates midwifery models of care offer regional Australia sustainable birthing services. Five birthing sites within the York and Northern Region of South Australia, designed in collaboration with key stakeholders, offered a new all-risk midwifery continuity of care model (MMoC). All pregnant women in the region were allocated to a known midwife once pregnancy was confirmed. In July 2019, the pilot program was implemented and an evaluation undertaken. The study aimed to evaluate the effectiveness, acceptability, and sustainability of the new midwifery model of care from the perspective of health care providers. The evaluation utilised a mixed methods design using focus groups and surveys to explore experiences of health care providers impacted by the implementation of the MMoC. This paper reports on midwives, doctors and nurses experiences at different time points, to gain insight into the model of care from the care providers impacted by the change to services. The first round of focus groups included 14 midwives, 6 hospital nurses/midwives and 5 doctors with the overarching theme that the 'MMoC was working well.' The second round of focus groups were undertaken across the five sites with 10 midwives, 9 hospital nurses/midwives and 5 doctors. The overarching theme captured all participants commitment to the MMoC, with agreement that 'there is no other option - it has to work'. All participants reported positive outcomes and a strong commitment to navigate the changes required to implement the new model of care. Collaboration and communication was expressed as key elements for success. Specific challenges and complexities were evident including a need to clarify expectations and the workload for midwives, and for nurses who were accustomed to having midwives 24 hours a day in hospitals. This innovative model responds to challenges in providing rural maternity care and offers a sustainable model for maternity services and workforce. There is an overwhelming commitment and consensus that there is 'no other option-it has to work'.

Real-world data analysis of distributed PV and battery energy storage system curtailment in low voltage networks

Curtailment of distributed photovoltaic (PV) and battery energy storage systems will have significant implications for power system transition around the world. Australia offers a unique case study as it has highest installation rate of distributed-PV and growing fleet of battery energy storage systems. Distributed-PV and battery inverters in Australia are required to exhibit voltage-responsive power-quality response modes to prevent excessive voltage rise caused by increasing day-time energy exports, but these modes can curtail power output and limit the value that can be gained from the renewable energy assets. For the first time in Australia, this paper studies all three inverter power-quality response modes and develops novel algorithms to assess curtailment. The algorithms are applied to a real-world dataset of 1-sec distributed-PV and battery power measurements from 1300 residential households; therefore, data resolution is higher and sample size is larger than previous related studies. Using these datasets, the study compares the experienced curtailment between distributed-PV only sites and distributed-PV coupled with battery sites for the first time. The study investigates and quantifies the energy loss due to curtailment within the South Australia region with over 40% distributed-PV penetration which has the highest uptake in the world. The results show that average curtailment loss was 1.5% for distributed-PV only sites and 0.2% for distributed-PV coupled with battery sites, however, some sites were heavily impacted losing up to 25% of generation. The reasons for the larger curtailment loss were identified as wiring and network connection faults and high voltage set-points at households' respective local substations. Other potential reason for the heavily impacted sites is being located towards the end of the low voltage feeder, however this couldn't be verified due to lack of spatial data. The large variation in curtailed generation across sites raises concerns for system owners and suggests further inquiry into the power-quality response mode design and regulations. The study also examines inverter conformance using real-world operational data for all three power quality response modes for the first time, and the results showed a low rate of conformance according to the Australian Standards and there were various discrepancies in the execution of these modes which raises concerns considering the increasing importance of distributed-PV and battery inverter fleet in supporting network operations and security. The results therefore warrant further investigation into the reasons behind these discrepancies and devising appropriate mechanisms to tighten inverter conformance checks.

O7 - Committing to the Change: Rolling out Midwifery Group Practice in Regional South Australia

O7 - Committing to the Change: Rolling out Midwifery Group Practice in Regional South Australia

Evolution of Geotourism in Australia from Kanawinka Global Geopark and Australian National Landscapes to GeoRegions and Geotrails: A Review and Lessons Learned

The geological heritage of Australia’s landscapes and World Heritage areas has generally been underpromoted to the public by the tourism industry. However, in 2008, the fledgling world of geotourism in Australia received a significant boost with two events: the Inaugural Global Geotourism Conference ‘Discover the Earth beneath our Feet’ held in Fremantle, Western Australia, and the declaration of the UNESCO Kanawinka Global Geopark, which linked volcanic regions in South Australia and Victoria. Simultaneously the Australian Federal Government launched the ‘Australian National Landscapes’ (ANL) program. However, this impetus was not sustained when the Kanawinka Global Geopark was deregistered as a UNESCO-branded geopark in 2012, and the ANL program faded within a decade. Despite these setbacks, as an outcome of the 2008 Fremantle conference, several productive lines of geotourism have developed across Australia. This paper reviews the history of Australian geotourism since 2008. It examines the impacts of the experiences, lessons learned, problems for geology as perceived by National Parks and the Environment movement, geological communication problems, and the subsequent evolution of Australian geotourism. From these issues, new non-government bodies and initiatives have arisen, including the Australian Geoparks Network, the Australian Geoscience Council, and the recent development of a National Geotourism Strategy. Strong elements emerging from these initiatives are the increasing development of geotrails (which suit the large Australian continent) and the new Australian concept of ‘GeoRegions’. These are in response to an awareness that geotourism requires a flexible outlook to widen the appreciation and appeal of geological heritage and landscapes to the broader public. A further new direction is suggested: for Australian geotourism to combine with some elements of ICOMOS Cultural Routes. An outstanding example, the ICOMOS Overland Telegraph Line (OTL) Cultural Route that crosses Australia from south to north, is considered. For 2000 km, the construction of this line in the 1870s followed the regional geology and hydrology, relying upon the available biota but bringing about a clash of human cultures. The six colonies of Australia were finally linked to the world by wire, but the arrival of the OTL had a significant impact on the country’s Indigenous inhabitants. In Australia and globally, geotourism is incorporating the A–B–Cs (abiotic, biotic and cultural elements) to more effectively encourage the public to value their landscapes and the associated stories. The OTL provides an example of a newly introduced fourth dimension for geotourism, which gives consideration to the socio-political context of landscape adaptation.

'If you want something to happen, you have to do it yourself': Understanding rural Australian's perspectives of health volunteering.

Rurality is associated with poorer health outcomes and access to health services, yet a strength of rural living includes community cohesion indicated by high rates of volunteering. While volunteerism is an effective means to target health needs in resource-restricted contexts, research on volunteerism to address rural Australian health needs is limited. This research aimed to explore rural adults' perspectives of volunteerism in local activities and programs that had a direct health related benefit (health volunteering). Eight people from the Murray Mallee region of South Australia participated during April 2021, ranging in age from 32 to 75 years. Participants were invited to one-on-one interviews that occurred via a phone call or teleconference meeting, which were audio-recorded and transcribed verbatim to facilitate thematic analysis. Seven main themes emerged. Participants identified that (1) health volunteering takes many forms, (2) health volunteering affords local ownership and accessibility, (3) health volunteers have particular skills and values, but also (4) gain social benefits and learn new skills. Rural health volunteering was also associated with (5) a variety of personal costs, and (6) there are several environmental barriers and (7) facilitators to rural health volunteering that should be considered when designing health programs. Results provide insight into how rural communities can enhance the development and application of volunteering roles to support health volunteering. SO WHAT?: Including local champions, reducing the financial burden and developing support networks for volunteers are practical suggestions to enhance levels of volunteering for health in rural settings.

Experimental use-wear patterns on silcrete, bottle glass and porcelain plate tools

Aboriginal people in Australia have used stone tools since first arrival about 65,000 years ago. After permanent European colonisation over 200 years ago people continued to use stone, but also incorporated new, introduced tool materials in novel ways. To understand how these introduced materials supplemented or replaced stone, we need new functional analyses and reference databases that compare experimental use-wear patterns on introduced materials with archaeological use-wear patterns. In the Riverland region of South Australia, silcrete and chert are common tool stones recovered from archaeological sites, but there is also evidence of introduced materials including glazed porcelain and bottle glass. Here, we report experimental use-wear patterns on silcrete, bottle glass and glazed porcelain plate tools. Tasks included processing wood, bone, skin or hide, meat and cattail reeds with a variety of tool motions. Results show that striations are more common on glass and glazed porcelain than on silcrete. The glazed porcelain, glass and silcrete experimental tools register distinctive use-wear patterns for some but not all tasks, and supplement previous functional studies of these materials.

Population structure of ALS-inhibiting herbicide-resistant Sonchus oleraceus in South Australia.

Annual sowthistle is a weed that is difficult to control in lentil crops in southern Australia due to a lack of herbicide options, widespread herbicide resistance and prolific production of highly mobile seed. This study investigates herbicide resistance in annual sowthistle in the Mid-North (MN) and Yorke Peninsula (YP) regions of South Australia, identifies and characterizes the mechanisms of acetolactate-synthase (ALS)-inhibitor resistance in this amphidiploid species, and combines this with analyses of population structure and gene flow. ALS-inhibitor-resistant annual sowthistle is widespread across the YP and MN of South Australia and is associated with a variety of Proline-197 mutations of the ALS gene, including leucine, alanine, arginine, serine, threonine and histidine. These mutations were found in different combinations on either of the two copies of the ALS gene. An additional 200 tissue samples were collected from across a single field on the YP and the ALS gene was sequenced for all these individuals. Different ALS-inhibitor resistance profiles were evident between mutation combinations and within mutation combinations, possibly mediated by differing subgenome assortment of the mutations, or altered gene experession of the two ALS homeologs. Population genetics analysis showed evidence of long-distance dispersal, resulting in highly mobile resistance genes, and multiple instances of resistance mutation evolution. Continuing selection of Sonchus oleraceus populations with ALS-inhibiting herbicides has resulted in the accumulation of additional mutations within the ALS gene. New practices to control herbicide-resistant S. oleraceus should be examined, and control should focus on reducing seed set and dispersal to prevent the spread of emerging cases of resistance. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

Frequency of herbicide resistance in wild oats (Avena spp.), brome grass (Bromus spp.) and barley grass (Hordeum spp.) as determined by random surveys across south-eastern Australia

Context Wild oats (Avena spp.), brome grass (Bromus spp.) and barley grass (Hordeum spp.) are significant grass weeds of crop production in south-eastern Australia. The presence of herbicide resistance in these weed species is a major limiting factor on both productivity and profitability. Aims We aimed to determine the distribution of herbicide resistance in these weed species across south-eastern Australia. Methods Several surveys were conducted in randomly selected fields across four states in south-eastern Australia over a 5-year period, collecting 663 wild oats, 366 brome grass and 262 barley grass samples that were screened for resistance with up to five different herbicide groups or subgroups. Key results In wild oats, resistance was most common to clodinafop-propargyl (‘fop’ ACCase inhibitor), with 22% of samples resistant and resistance detected in all regions except Tasmania. Resistance to sulfonylurea herbicides (ALS inhibitors) was less common with 7% of samples resistant, but regionally more variable. For both brome grass and barley grass, a greater proportion of samples was resistant to the sulfonylurea mesosulfuron-methyl, at 24% and 19%, respectively, than to quizalofop-ethyl (‘fop’ ACCase inhibitor). Conclusions Resistance was recorded in all three species, with differences in the extent of resistance among herbicide groups and regions. Overall, a higher than average frequency of wild oats resistance to clodinafop-propargyl was found in regions of New South Wales and of brome grass and barley grass resistance to mesosulfuron-methyl in regions of South Australia. However, for all species some herbicides were still effective on all samples. Implications The presence of significant herbicide resistance in these weed species indicates that management decisions need to include consideration of resistance to enable successful control measures.

Taking University to the Students: Forging Connections and Inclusion Through Regional University Centres (RUCs)

For regional students, going to university frequently involves moving away from important home, family and community connections to forge new connections in unfamiliar environments. This is a daunting prospect discouraging many from considering university as an option. But what if university could come to them, allowing them to stay where they feel most connected, whilst also becoming connected with other students and developing a sense of inclusion within university culture? Recent research with high school students in regional South Australia indicates that the combination of online delivery (increasingly mainstreamed due to COVID-19) and the growing presence of Regional University Centres (RUCs) may provide the opportunity for this to happen. This paper discusses these findings within the context of the challenges for regional students in moving away from their connections. It argues that, instead, important learning connections may be offered within their local communities through the collaboration between universities and RUCs.

Reviving health promotion in South Australia: The role of ideas, actors and institutional forces.

Globally health promotion has remained marginalized while biomedical health systems have maintained and even increased their dominance. During 2019-2021 we drew on the local and historical knowledge of actors from multiple sectors through semi-structured interviews and focus groups, to assess the implications of the withdrawal of the state from health promotion in a suburban region of South Australia. Institutional theory enabled in-depth analysis of the ideas, actors, and institutional forces at play in the institutional field, and how these elements come together to maintain the dominance of medicine. We found that the ideas, actors and institutional forces supporting health promotion in the study region have weakened and fragmented. This has happened as biomedicine has increased its dominance in the region's health system, mirroring international trends. The results point to a withdrawal of state and federal governments from health promotion, which has led to severe gaps in leadership and governance, and locally, to a decline in capacity and resources. The state health department reallocated resources to focus on individual behavioural change rather than more structural factors affecting health. While some activities aimed at the social determinants of health or community development strategies remained, these had minimal institutional support. The establishment of a state government wellbeing agency in 2020 prompted an exploration to determine whether the agency and the international wellbeing movement presents an opportunity for a revival of more comprehensive health promotion.

Plant-available water capacity of soils at a regional scale: Analysis of fixed and dynamic field capacities

Estimation of the plant-available water capacity (PAWC) of soils at a regional scale helps in adopting better land use planning, developing suitable irrigation schedules for crops, and optimizing the use of scarce water resources. In the current study, 72 soil profiles were sampled from the Barossa region of South Australia to estimate pedo-transfer functions deduced from easily estimated soil properties. These functions were then used to estimate the fixed (10 and 33 kPa) and dynamic pressure head (hfc) water contents at field capacity (FC) for minimum drainage flux (0.01 and 0.001 cm d-1), which serves as the upper boundary for plant-available water in soils. The estimated residual water content was corrected for subsoil constraints, especially the exchangeable sodium percentage (ESP). The results showed that the mean values of hfc in sand-dominated light and medium textured soils (i.e., sand, loamy sand, sandy loam, and loam) varied in a narrow range (15.8–18.2 kPa), whereas those in the clay-dominated heavy textured soils (i.e., clay loam) showed a wide range (11.3–49.3 kPa). There were large differences in PAWC for dynamic FC (PAWCfc) and fixed FC at 10 kPa (PAWC10), 33 kPa (PAWC33), and a mix of 10 and 33 kPa (PAWC10, 33) pressure heads depending on soil texture. Normally, the difference between PAWC at 10 kPa and hfc (ΔPAWC10) was positive, whereas that between 33 kPa and hfc (ΔPAWC33) was negative across all sites. Nevertheless, the estimation of PAWC assuming a fixed FC at 10 and 33 kPa pressures (i.e., PAWC10, 33) for sandy, clay, and silty soils reduced the difference between fixed and dynamic pressure PAWCs to < 10% across the region. The estimation of PAWC was improved by incorporating the impact of subsoil constraints, such as high ESP, which was more pronounced for clay and silty soils. These findings demonstrate the inherent inconsistencies between static pressure and flux-based dynamic FC estimations in soils. Soil heterogeneity, intra-texture variability, subsoil constraints, and swell-shrink clays can have great impacts on the water retention capacity in response to dynamic and fixed pressure FC values.

Self-efficacy and oral health outcomes in a regional Australian Aboriginal population

BackgroundPerceived self-efficacy has been associated with psychological well-being, health behaviours and health outcomes. Little is known about the influence of self-efficacy on oral health outcomes for Aboriginal adults in Australia, a population experiencing high levels of oral health conditions. This study examines associations between oral health-related self-efficacy and oral health outcomes in a regional Aboriginal Australian population and investigates whether the associations persist after adjusting for sociodemographic characteristics and other general and oral health-related psychosocial factors.MethodsCross-sectional data were obtained from the baseline questionnaire of the Indigenous Oral Heath Literacy Project, South Australia. Oral health-related self-efficacy was measured using a six item scale, with total sum scores dichotomised into high/low self-efficacy. Oral health outcomes included self-rated oral health and oral health impacts, measured using the Oral Health Impact Profile (OHIP-14). Generalized linear models with a log-Poisson link function were used to estimate Prevalence Ratios (PR) of poor self-rated oral health according to levels of oral health-related self-efficacy. Multivariable linear regressions were used to estimate the association between oral health-related self-efficacy and OHIP-14 scores. Blocks of confounders were subsequently added into the models, with the final model including all factors.ResultsComplete data were available for 252 participants (63%) aged 18 to 82 years (mean age of 37.6 years). Oral health-related self-efficacy was associated with poor self-rated oral health, with a 43% (PR = 1.43 (95% CI 1.09, 1.88)) greater prevalence of poor self-rated oral health among those with low self-efficacy. Oral health-related self-efficacy was associated with OHIP-14 severity scores, with a score over six points higher for those with low self-efficacy (B = 6.27 95% CI 2.71, 9.83). Although addition of perceived stress into the models attenuated the relationship, associations remained in the final models.ConclusionLower levels of oral health-related self-efficacy were associated with a higher prevalence of poor self-rated oral health and greater impacts of oral health among Aboriginal adults in regional South Australia. These associations persisted after controlling for sociodemographic and psychosocial confounders, suggesting that increasing self-efficacy may provide an opportunity for improving oral health outcomes for Aboriginal adults.