Publications by authors named "Buchan H"

Mapping, identifying and reducing unwarranted healthcare variation is integral to improving the appropriateness of care - minimising wasteful or unnecessary care and redirecting care to those who could benefit most (J Eval Clin Pract 26: 687-696, 2020). The Australian Atlas of Healthcare Variation series has examined variation in healthcare use since 2015. The findings reported in the Atlas series have led to important system changes.

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Background: The Australian Commission on Safety and Quality in Health Care released a set of national standards which became a mandatory part of accreditation in 2013. Standard 9 focuses on the identification and treatment of deteriorating patients. The objective of the study was to identify changes in the characteristics and perceptions of rapid response systems (RRS) since the implementation of Standard 9.

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Geographic variation in health care use has been demonstrated in many countries over many years. Such variation can be warranted - in response to patient need or preference for care - or unwarranted. Unwarranted variation raises concerns about equity and appropriateness of care.

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Background: Variation in the provision of coronary angiography is associated with health care inefficiency and inequity. We explored geographic, socio-economic, health service and disease indicators associated with variation in angiography rates across Australia.

Methods: Australian census and National Health Survey data were used to determine socio-economic, health workforce and service indicators.

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Objective: To investigate factors that may bias the reporting of major depression symptoms among older adults, specifically the presence of physical conditions, bereavement, episode onset, and episode length.

Methods: A secondary data analysis of a nationally representative cross-sectional survey of community-dwelling older Australian adults aged 50-85 years who completed the depression module in the 2007 Australian National Survey of Mental Health and Wellbeing (N=629) was conducted. Depression symptomatology was assessed according to Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, criteria using the World Mental Health Composite International Diagnostic Interview.

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Two methodological criticisms have limited the reliability and validity of findings from previous studies that seek to examine change across the life span in levels of internalizing psychopathology using general population surveys. The first criticism involves the potential influence of cohort effects that confound true age-related changes whereas the second criticism involves the use of a single form of assessment to measure and compare levels of internalizing psychopathology. This study seeks to address these criticisms by modeling age-related change using multiple measures and multiple surveys.

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Objective: To describe and compare individuals with any DSM-IV mental disorder from three different birth cohorts - young (16-34 years), middle age (35-59 years) and older age (60-85 years) - on a range of clinically relevant factors.

Method: Data were derived from the 2007 Australian National Survey of Mental Health and Wellbeing. Individuals from three birth cohorts with a range of mental health and substance use disorders were identified using DSM-IV criteria and compared using regression analysis.

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Background: Epidemiological studies typically report lower prevalence of mental disorders among older adults relative to middle-aged and young adults. A possible explanation is that age-related bias in the screening items of diagnostic instruments leads to older adults being differentially screened out of the full assessment. This study investigated potential age-related bias in screening items for internalising disorders in three epidemiological surveys.

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Segmental variation in maternal speech to children changes over time. This study investigated variation in non-citation speech processes in a longitudinal, 26-hour corpus of maternal northern Australian English. Recordings were naturalistic parent-child interactions when children (N=4) were 1;6, 2;0, and 2;6.

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Background: To better understand the efficacy of various implementation strategies, improved methods for describing and classifying the nature of these strategies are urgently required. The aim of this study was to develop and pilot the feasibility of a taxonomy to classify the nature and content of implementation strategies.

Methods: A draft implementation taxonomy was developed based on the Cochrane Effective Practice and Organisation of Care (EPOC) data collection checklist.

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Background: Measuring team factors in evaluations of Continuous Quality Improvement (CQI) may provide important information for enhancing CQI processes and outcomes; however, the large number of potentially relevant factors and associated measurement instruments makes inclusion of such measures challenging. This review aims to provide guidance on the selection of instruments for measuring team-level factors by systematically collating, categorizing, and reviewing quantitative self-report instruments.

Data Sources: We searched MEDLINE, PsycINFO, and Health and Psychosocial Instruments; reference lists of systematic reviews; and citations and references of the main report of instruments.

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Background: Continuous quality improvement (CQI) methods are widely used in healthcare; however, the effectiveness of the methods is variable, and evidence about the extent to which contextual and other factors modify effects is limited. Investigating the relationship between these factors and CQI outcomes poses challenges for those evaluating CQI, among the most complex of which relate to the measurement of modifying factors. We aimed to provide guidance to support the selection of measurement instruments by systematically collating, categorising, and reviewing quantitative self-report instruments.

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Background: Governments and other payers are yet to determine optimal processes by which to review the safety, effectiveness, and cost-effectiveness of technologies and procedures that are in active use within health systems, and rescind funding (partially or fully) from those that display poor profiles against these parameters. To further progress a disinvestment agenda, a model is required to support payers in implementing disinvestment in a transparent manner that may withstand challenge from vested interests and concerned citizens. Combining approaches from health technology assessment and deliberative democratic theory, this project seeks to determine if and how wide stakeholder engagement can contribute to improved decision-making processes, wherein the views of both vested and non-vested stakeholders are seen to contribute to informing policy implementation within a disinvestment context.

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Objectives: Health policy making is complex, but can be informed by evidence of what works, including systematic reviews. We aimed to inform the work of the Cochrane Effective Practice and Organisation of Care (EPOC) Group by identifying systematic review topics relevant to Australian health policy makers and exploring whether existing Cochrane reviews address these topics.

Methods: We interviewed 30 senior policy makers from State and Territory Government Departments of Health to identify topics considered important for systematic reviews within the scope of health services research, including professional, financial, organisational and regulatory interventions to improve professional practice and the organisation of services.

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Context: The apparent inconsistency between the widespread use of quality improvement collaboratives and the available evidence heightens the importance of thoroughly understanding the relative strength of the approach. More insight into factors influencing outcome would mean future collaboratives could be tailored in ways designed to increase their chances of success. This review describes potential determinants of team success and how they relate to effectiveness.

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Objective: To identify the number of Australian clinical practice guidelines, and their key characteristics.

Design, Setting And Participants: Clinical practice guidelines that were produced or reviewed between 2003 and 2007 for use in Australia at a national or state level were identified by approaching health-related organisations and searching websites. Their characteristics were abstracted from the published guidelines and publicly accessible accompanying material.

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Background: This study examined the effectiveness of seven different interventions designed to increase the proportion of general practitioners (GPs) accepting an offer of free access to an online evidence-based resource.

Methods: Australian GPs (n = 14,000) were randomly selected and assigned to seven intervention groups, with each receiving a different letter. Seven different strategies were used to encourage GPs to accept an offer of two years free access to an online evidence-based resource (BMJ Clinical Evidence).

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To improve health outcomes, effective and systematic mechanisms to foster the adoption of evidence-based guideline recommendations into routine practice need to be identified. A cyclical process for achieving this objective involving three key phases is suggested. Phase 1.

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Improvements in clinicians’ use of graduated compression stockings are needed, supported by consistent policies in hospitals and general practice

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We report a case of Miller Fisher syndrome presenting in an ENT setting. The referral was made on the basis of worsening nasal regurgitation following Campylobacter jejuni enteritis. The aim of this report is not to add to the recorded instances of Miller Fisher syndrome, but to help raise the level of its awareness amongst otolaryngologists.

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