Rural Clinical School - Research Publications

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    Exclusions within Healthcare in a Regional Australian Setting: Voices of the Hardly Reached
    Shaburdin, ZM ; Bourke, L ; Mitchell, O (Griffith University, 2023)
    Health initiatives to improve inclusion of vulnerable people have tended to focus on a specific group with little evidence of improvement in health outcomes or attention to intersectionality. This study proposes that exclusion within health services can first be addressed through identification of common practices underpinning exclusion. A total of 119 seemingly hardly reached residents participated through individual interviews, small group interviews and focus group discussions. Undertaking a Derridean deconstruction analysis, the study identified three exclusionary practices commonly experienced by respondents when seeking healthcare in a regional setting. These are: i) language and communication, ii) assumptions and prejudice, and iii) exclusionary processes and systems. Although exclusion manifests differently between and within service user groups, the three identified forms of exclusion were commonly experienced by the hardly reached. Identifying and addressing common exclusionary practices in health services could focus inclusion strategies for health services with benefits to many service users.
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    Telehealth in oncology: a cost analysis to evaluate the financial impact of implementing regional trial hubs within a phase 3 cancer clinical trial
    Alexander, M ; Collins, I ; Abraham, P ; Underhill, C ; Harris, S ; Torres, J ; Sharma, S ; Solomon, B ; Tran-Duy, A ; Burbury, K (WILEY, 2023-12)
    This cost analysis, from a societal perspective, compared the cost difference of a networked teletrial model (NTTM) with four regional hubs versus conventional trial operation at a single metropolitan specialist centre. The Australian phase 3 cancer interventional randomised controlled trial included 152 of 328 regional participants (patient enrolment 2018-2021; 6-month primary end point). The NTTM significantly reduced (AU$2155 per patient) patient travel cost and time and lost productivity.
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    Real-world clinical outcomes and cost estimates of metastatic castration-resistant prostate cancer treatment: does sequencing of taxanes and androgen receptor-targeted agents matter?
    Pereira-Salgado, A ; Anton, A ; Franchini, F ; Mahar, RK ; Kwan, EM ; Wong, S ; Shapiro, J ; Weickhardt, A ; Azad, AA ; Spain, L ; Gunjur, A ; Torres, J ; Parente, P ; Parnis, F ; Goh, J ; Steer, C ; Brown, S ; Gibbs, P ; Tran, B ; IJzerman, M (TAYLOR & FRANCIS LTD, 2023-02-07)
    INTRODUCTION: Health economic outcomes of real-world treatment sequencing of androgen receptor-targeted agents (ARTA) and docetaxel (DOC) remain unclear. MATERIAL AND METHODS: Data from the electronic Castration-resistant Prostate cancer Australian Database (ePAD) were analyzed including median overall survival (mOS) and median time-to-treatment failure (mTTF). Mean total costs (mTC) and incremental cost-effectiveness ratios (ICER) of treatment sequences were estimated using the average sample method and Zhao and Tian estimator. RESULTS: Of 752 men, 441 received ARTA, 194 DOC, and 175 both sequentially. Of participants treated with both, first-line DOC followed by ARTA was the more common sequence (n = 125, 71%). mOS for first-line ARTA was 8.38 years (95% CI: 3.48, not-estimated) vs. 3.29 years (95% CI: 2.92, 4.02) for DOC. mTTF was 15.7 months (95% CI: 14.2, 23.7) for the ARTA-DOC sequence and 18.2 months (95% CI: 16.2, 23.2) for DOC-ARTA. In first-line, ARTA cost an additional $13,244 per mTTF month compared to DOC. In second-line, ARTA cost $6726 per mTTF month. The DOC-ARTA sequence saved $2139 per mTTF compared to ARTA-DOC, though not statistically significant. CONCLUSION: ICERs show ARTA had improved clinical benefit compared to DOC but at higher cost. There were no significant cost differences between combined sequences.
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    Self-Rated Oral Health as a Valid Measure of Oral Health Status in Adults Living in Rural Australia
    Atala-Acevedo, C ; McGrath, R ; Glenister, K ; Capurro, D ; Bourke, L ; Simmons, D ; Morgan, M ; Marino, R (MDPI, 2023-06)
    It is unclear how well self-rated oral health (SROH) reflects actual oral health status in the rural Australian population. Therefore, this study aimed to compare the clinically assessed oral health status and SROH of adults living in rural Australia. The data were from 574 participants who took part in the Crossroads II cross-sectional study. Three trained and calibrated dentists evaluated the oral health status of participants based on WHO criteria. SROH was assessed with the question 'Overall, how would you rate the health of your teeth and gums?', with a score ranging from excellent = 5 to poor = 1. A logistic regression analysis (LRA) was performed, allowing us to assess factors associated with SROH. The mean age of participants was 59.2 years (SD 16.3), and 55.3% were female. The key results from the LRA show poorer SROH in those with more missing teeth (OR = 1.05; 95% CI; 1.01-1.08), more decayed teeth (OR = 1.28; 95% CI: 1.11-1.46), and more significant clinical attachment loss of periodontal tissue (6mm or more) (OR = 2.63; 95% CI: 1.29-5.38). This study found an association between negative SROH and clinical indicators used to measure poor oral health status, suggesting that self-rated oral health is an indicator of oral health status. When planning dental healthcare programs, self-reported oral health should be considered a proxy measure for oral health status.
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    Prevalence and factors associated with mental health problems of psychological distress and depression among rural Victorians - analysis of cross-sectional data (Crossroads II)
    Dashputre, A ; Agho, KE ; Piya, MK ; Glenister, K ; Bourke, L ; Hannah, S ; Bhat, R ; Osuagwu, UL ; Simmons, D (BMC, 2023-06-20)
    BACKGROUND: Research suggests that rates of mental illness are similar in rural and urban Australia, although there are significant workforce shortages in rural regions along with higher rates of chronic disease and obesity and lower levels of socioeconomic status. However, there are variations across rural Australia and limited local data on mental health prevalence, risk, service use and protective factors. This study describes the prevalence of self-reported mental health problems of psychological distress and depression, in a rural region in Australia and aims to identify the factors associated with these problems. METHODS: The Crossroads II study was a large-scale cross-sectional study undertaken in the Goulburn Valley region of Victoria, Australia in 2016-18. Data were collected from randomly selected households across four rural and regional towns and then screening clinics from individuals from these households. The main outcome measures were self-reported mental health problems of psychological distress assessed by the Kessler 10 and depression assessed by Patient Health Questionnaire-9. Unadjusted odd ratios and 95% confidence intervals of factors associated with the two mental health problems were calculated using simple logistic regression with multiple logistic regression using hierarchical modelling to adjust for the potential confounders. RESULTS: Of the 741 adult participants (55.6% females), 67.4% were aged ≥ 55 years. Based on the questionnaires, 16.2% and 13.6% had threshold-level psychological distress and depression, respectively. Of those with threshold-level K-10 scores, 19.0% and 10.5% had seen a psychologist or a psychiatrist respectively while 24.2% and 9.5% of those experiencing depression had seen a psychologist or a psychiatrist, respectively in the past year. Factors such as being unmarried, current smoker, obesity, were significantly associated with a higher prevalence of mental health problems whereas physical activity, and community participation reduced the risk of mental health problems. Compared to rural towns, the regional town had higher risk of depression which was non-significant after adjusting for community participation and health conditions. CONCLUSIONS: The high prevalence of psychological distress and depression in this rural population was consistent with other rural studies. Personal and lifestyle factors were more relevant to mental health problems than degree of rurality in Victoria. Targeted lifestyle interventions could assist in reducing mental illness risk and preventing further distress.
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    Non-alcoholic fatty liver disease prevalence in Australia has risen over 15 years in conjunction with increased prevalence of obesity and reduction in healthy lifestyle
    Vaz, K ; Kemp, W ; Majeed, A ; Lubel, J ; Magliano, DJ ; Glenister, KM ; Bourke, L ; Simmons, D ; Roberts, SK (WILEY, 2023-10)
    BACKGROUND AND AIM: Non-alcoholic fatty liver disease (NAFLD) is the most prevalent liver condition globally. The aim of this study was to evaluate the change in age- and sex-standardized prevalence of NAFLD in regional Victoria over a 15-year period and explore the underlying factors associated with differences over time. METHODS: Repeated comparative cross-sectional studies in four towns in regional Victoria, Australia. Individuals randomly selected from households from residential address lists from local government organizations in 2001-2003 (CrossRoads I [CR1]) and 2016-2018 (CrossRoads II [CR2]) with 1040 (99%) and 704 (94%) participants from CR1 and CR2 having complete data for analysis. Primary outcome was change in prevalence estimates of NAFLD (defined by a fatty liver index ≥ 60 in the absence of excess alcohol and viral hepatitis) between 2003 and 2018. RESULTS: Crude prevalence of NAFLD increased from 32.7% to 38.8% (P < 0.01), while age-standardized/sex-standardized prevalence increased from 32.4% to 35.4% (P < 0.01). Concurrently, prevalence of obesity defined by BMI and elevated waist circumference increased 28% and 25%, respectively. Women had a greater increase in the prevalence of NAFLD than men, in parallel with increasing prevalence of obesity. Proportion of participants consuming takeaway food greater than once weekly increased significantly over time. Up to 60% of NAFLD patients require additional tests for assessment of significant fibrosis. CONCLUSIONS: Crude and age-standardized/sex-standardized prevalence of NAFLD have both increased significantly over the last 15 years, particularly among women, in association with a parallel rise in the prevalence of obesity.
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    Service Level Characteristics of Rural Palliative Care for with Chronic Disease
    Disler, R ; Pascoe, A ; Hickson, H ; Wright, J ; Philips, B ; Subramaniam, S ; Glenister, K ; Philip, J ; Donesky, D ; Smallwood, N (ELSEVIER SCIENCE INC, 2023-10)
    CONTEXT: Despite clear benefit from palliative care in end-stage chronic, non-malignant disease, access for rural patients is often limited due to workforce gaps and geographical barriers. OBJECTIVES: This study aimed to understand existing rural service structures regarding the availability and provision of palliative care for people with chronic conditions. METHODS: A cross-sectional online survey was distributed by email to rural health service leaders. Nominal and categorical data were analyzed descriptively, with free-text questions on barriers and facilitators in chronic disease analyzed using qualitative content analysis. RESULTS: Of 42 (61.7%) health services, most were public (88.1%) and operated in acute (19, 45.2%) or community (16, 38.1%) settings. A total of 17 (41.5%) reported an on-site specialist palliative care team, primarily nurses (19, 59.5%). Nearly all services (41, 95.3%) reported off-site specialist palliative care access, including: established external relationships (38, 92.7%); visiting consultancy (26, 63.4%); and telehealth (18, 43.9%). Perceived barriers in chronic disease included: lack of specific referral pathways (18; 62.1%); negative patient expectations (18; 62.1%); and availability of trained staff (17; 58.6%). Structures identified to support palliative care in chronic disease included: increased staff/funding (20, 75.0%); formalized referral pathways (n = 18, 64.3%); professional development (16, 57.1%); and community health promotion (14, 50%). CONCLUSION: Palliative care service structure and capacity varies across rural areas, and relies on a complex, at times ad hoc, network of onsite and external supports. Services for people with chronic, non-malignant disease are sparse and largely unknown, with a call for the development of specific referral pathways to improve patient care.
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    Risk-Directed Ambulatory Thromboprophylaxis in Lung and Gastrointestinal Cancers The TARGET-TP Randomized Clinical Trial
    Alexander, M ; Harris, S ; Underhill, C ; Torres, J ; Sharma, S ; Lee, N ; Wong, H ; Eek, R ; Michael, M ; Tie, J ; Rogers, J ; Heriot, AG ; Ball, D ; MacManus, M ; Wolfe, R ; Solomon, BJ ; Burbury, K (AMER MEDICAL ASSOC, 2023-11)
    IMPORTANCE: Thromboprophylaxis for individuals receiving systemic anticancer therapies has proven to be effective. Potential to maximize benefits relies on improved risk-directed strategies, but existing risk models underperform in cohorts with lung and gastrointestinal cancers. OBJECTIVE: To assess clinical benefits and safety of biomarker-driven thromboprophylaxis and to externally validate a biomarker thrombosis risk assessment model for individuals with lung and gastrointestinal cancers. DESIGN, SETTING, AND PARTICIPANTS: This open-label, phase 3 randomized clinical trial (Targeted Thromboprophylaxis in Ambulatory Patients Receiving Anticancer Therapies [TARGET-TP]) conducted from June 2018 to July 2021 (with 6-month primary follow-up) included adults aged 18 years or older commencing systemic anticancer therapies for lung or gastrointestinal cancers at 1 metropolitan and 4 regional hospitals in Australia. Thromboembolism risk assessment based on fibrinogen and d-dimer levels stratified individuals into low-risk (observation) and high-risk (randomized) cohorts. INTERVENTIONS: High-risk patients were randomized 1:1 to receive enoxaparin, 40 mg, subcutaneously daily for 90 days (extending up to 180 days according to ongoing risk) or no thromboprophylaxis (control). MAIN OUTCOMES AND MEASURES: The primary outcome was objectively confirmed thromboembolism at 180 days. Key secondary outcomes included bleeding, survival, and risk model validation. RESULTS: Of 782 eligible adults, 328 (42%) were enrolled in the trial (median age, 65 years [range, 30-88 years]; 176 male [54%]). Of these participants, 201 (61%) had gastrointestinal cancer, 127 (39%) had lung cancer, and 132 (40%) had metastatic disease; 200 (61%) were high risk (100 in each group), and 128 (39%) were low risk. In the high-risk cohort, thromboembolism occurred in 8 individuals randomized to enoxaparin (8%) and 23 control individuals (23%) (hazard ratio [HR], 0.31; 95% CI, 0.15-0.70; P = .005; number needed to treat, 6.7). Thromboembolism occurred in 10 low-risk individuals (8%) (high-risk control vs low risk: HR, 3.33; 95% CI, 1.58-6.99; P = .002). Risk model sensitivity was 70%, and specificity was 61%. The rate of major bleeding was low, occurring in 1 participant randomized to enoxaparin (1%), 2 in the high-risk control group (2%), and 3 in the low-risk group (2%) (P = .88). Six-month mortality was 13% in the enoxaparin group vs 26% in the high-risk control group (HR, 0.48; 95% CI, 0.24-0.93; P = .03) and 7% in the low-risk group (vs high-risk control: HR, 4.71; 95% CI, 2.13-10.42; P < .001). CONCLUSIONS AND RELEVANCE: In this randomized clinical trial of individuals with lung and gastrointestinal cancers who were stratified by risk score according to thrombosis risk, risk-directed thromboprophylaxis reduced thromboembolism with a desirable number needed to treat, without safety concerns, and with reduced mortality. Individuals at low risk avoided unnecessary intervention. The findings suggest that biomarker-driven, risk-directed primary thromboprophylaxis is an appropriate approach in this population. TRIAL REGISTRATION: ANZCTR Identifier: ACTRN12618000811202.
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    Patient-delivered partner therapy for chlamydia in Australia: can it become part of routine care?
    Goller, JL ; Coombe, J ; Bourne, C ; Bateson, D ; Temple-Smith, M ; Tomnay, J ; Vaisey, A ; Chen, MY ; O'Donnell, H ; Groos, A ; Sanci, L ; Hocking, J (CSIRO Publishing, 2020-08-03)
    Background: Patient-delivered partner therapy (PDPT) is a method for an index patient to give treatment for genital chlamydia to their sexual partner(s) directly. In Australia, PDPT is considered suitable for heterosexual partners of men and women, but is not uniformly endorsed. We explored the policy environment for PDPT in Australia and considered how PDPT might become a routine option. Methods: Structured interviews were conducted with 10 key informants (KIs) representing six of eight Australian jurisdictions and documents relevant to PDPT were appraised. Interview transcripts and documents were analysed together, drawing on KIs’ understanding of their jurisdiction to explore our research topics, namely the current context for PDPT, challenges, and actions needed for PDPT to become routine. Results: PDPT was allowable in three jurisdictions (Victoria, New South Wales, Northern Territory) where State governments have formally supported PDPT. In three jurisdictions (Western Australia, Australian Capital Territory, Tasmania), KIs viewed PDPT as potentially allowable under relevant prescribing regulations; however, no guidance was available. Concern about antimicrobial stewardship precluded PDPT inclusion in the South Australian strategy. For Queensland, KIs viewed PDPT as not allowable under current prescribing regulations and, although a Medicine and Poisons Act was passed in 2019, it is unclear if PDPT will be possible under new regulations. Clarifying the doctor–partner treating relationship and clinical guidance within a care standard were viewed as crucial for PDPT uptake, irrespective of regulatory contexts. Conclusion: Endorsement and guidance are essential so doctors can confidently and routinely offer PDPT in respect to professional standards and regulatory requirements.
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    Social interaction and social inclusion in international rural health research
    Bourke, L ; Anam, M ; Shaburdin, ZM ; Mitchell, O ; Crouch, A (Springer International Publishing, 2022-05-14)
    There are particular attributes of rural communities that shape inclusion and exclusion in these settings. Social inclusion, or the opportunity for participation and access, together with its opposite, social exclusion, are central issues in rural contexts due to lower levels of income, education, and health outcomes as well as less access to health services. Adapting Wilkinson's interactional perspective of rural communities, this chapter focuses on how social interactions, or the ways local people talk, undertake activities and organize their daily lives, play a central role in understanding inclusion and exclusion within rural communities. This perspective underpins three case studies of inclusion research, one investigating the inclusion of socially and culturally diverse consumers in local health services in regional Australia, one working with a rural Australian health service to increase inclusion for local consumers, and a traditional healing approach to men's sexual health in rural Bangladesh. Key lessons from these case studies include the importance of developing genuine relationships and partnerships, working with local systems and "ways of doing things," progressing change slowly, and adopting pluralistic approaches to inclusion. Successful inclusion research was found to involve effective engagement, working with local networks, conducting long-term projects, and employing local researchers. The case studies highlight the need for more inclusive practices in rural health which can be assisted by research that challenges exclusionary interactions in rural communities.