Unequal access to breast-conserving surgery in Western Australia 1982-2000

Factors involved in treatment decision making for women diagnosed with ductal carcinoma in situ: A qualitative study

Whilst some of the diversity in management of women with ductal carcinoma in situ (DCIS) may be explained by tumour characteristics, the role of patient preference and the factors underlying those preferences have been less frequently examined. We have used a descriptive qualitative study to explore treatment decisions for a group of Australian women diagnosed with DCIS through mammographic screening. Semi-structured telephone interviews were performed with 16 women diagnosed with DCIS between January 2012 and December 2018, recruited through the LifePool dataset (a subset of BreastScreen participants who have agreed to participate in research). Content analysis using deductive coding identified three themes: participants did not have a clear understanding of their diagnosis or prognosis; reported involvement in decision making about management varied; specific factors including the psychosexual impact of mastectomy and perceptions of radiotherapy, could act as barriers or facilitators to specific decisions about treatment. The treatment the women received was not simply determined by the characteristics of their disease. Interaction with the managing clinician was pivotal, however many other factors played a part in individual decisions. Recognising that decisions are not purely a function of disease characteristics is important for both women with DCIS and the clinicians who care for them.

Growth of linked hospital data use in Australia: a systematic review

Objective The aim of the present study was to quantify and understand the utilisation of linked hospital data for research purposes across Australia over the past two decades. Methods A systematic review was undertaken guided by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2009 checklist. Medline OVID, PsycINFO, Embase, EconLit and Scopus were searched to identify articles published from 1946 to December 2014. Information on publication year, state(s) involved, type of data linkage, disease area and purpose was extracted. Results The search identified 3314 articles, of which 606 were included; these generated 629 records of hospital data linkage use across all Australian states and territories. The major contributions were from Western Australia (WA; 51%) and New South Wales (NSW; 32%) with the remaining states and territories having significantly fewer publications (total contribution only 17%). WA's contribution resulted from a steady increase from the late 1990s, whereas NSW's contribution is mostly from a rapid increase from 2010. Current data linkage is primarily used in epidemiological research (73%). Conclusion More than 80% of publications were from WA and NSW, whereas other states significantly lag behind. The observable growth in these two states clearly demonstrates the underutilised opportunities for data linkage to add value in health services research in the other states. What is known about the topic? Linking administrative hospital data to other data has the potential to be a cost-effective method to significantly improve health policy. Over the past two decades, Australia has made significant investments in improving its data linkage capabilities. However, several articles have highlighted the many barriers involved in using linked hospital data. What does this paper add? This paper quantitatively evaluates the performance across all Australian states in terms of the use of their administrative hospital data for research purposes. The performance of states varies considerably, with WA and NSW the clear stand-out performers and limited outputs currently seen for the other Australian states and territories. What are the implications for practitioners? Given the significant investments made into data linkage, it is important to continue to evaluate and monitor the performance of the states in terms of translating this investment into outputs. Where the outputs do not match the investment, it is important to identify and overcome those barriers limiting the gains from this investment. More generally, there is a need to think about how we improve the effective and efficient use of data linkage investments in Australia.

Creation of a new clinical framework - why women choose mastectomy versus breast conserving therapy

BACKGROUND

Clinical medicine has lagged behind other fields in understanding and utilizing frameworks to guide research. In this article, we introduce a new framework to examine why women choose mastectomy versus breast conserving therapy in early stage breast cancer, and highlight the importance of utilizing a conceptual framework to guide clinical research.

METHODS

The framework we present was developed through integrating previous literature, frameworks, theories, models, and the author's past research.

RESULTS

We present a conceptual framework that illustrates the central domains that influence women's choice between mastectomy versus breast conserving therapy. These have been organized into three broad constructs: clinicopathological factors, physician factors, and individual factors with subgroups of sociodemographic, geographic, and individual belief factors. The aim of this framework is to provide a comprehensive basis to describe, examine, and explain the factors that influence women's choice of mastectomy versus breast conserving therapy at the individual level.

CONCLUSION

We have developed a framework with the purpose of helping health care workers and policy makers better understand the multitude of factors that influence a patient's choice of therapy at an individual level. We hope this framework is useful for future scholars to utilize, challenge, and build upon in their own work on decision-making in the setting of breast cancer. For clinician-researchers who have limited experience with frameworks, this paper will highlight the importance of utilizing a conceptual framework to guide future research and provide an example.

Variations in outcomes by residential location for women with breast cancer: a systematic review

OBJECTIVES

To systematically assess the evidence for variations in outcomes at each step along the breast cancer continuum of care for Australian women by residential location.

DESIGN

Systematic review.

METHODS

Systematic searches of peer-reviewed articles in English published from 1 January 1990 to 24 November 2017 using PubMed, EMBASE, CINAHL and Informit databases. Inclusion criteria were: population was adult female patients with breast cancer; Australian setting; outcome measure was survival, patient or tumour characteristics, screening rates or frequencies, clinical management, patterns of initial care or post-treatment follow-up with analysis by residential location or studies involving non-metropolitan women only. Included studies were critically appraised using a modified Newcastle-Ottawa Scale.

RESULTS

Seventy-four quantitative studies met the inclusion criteria. Around 59% were considered high quality, 34% moderate and 7% low. No eligible studies examining treatment choices or post-treatment follow-up were identified. Non-metropolitan women consistently had poorer survival, with most of this differential being attributed to more advanced disease at diagnosis, treatment-related factors and socioeconomic disadvantage. Compared with metropolitan women, non-metropolitan women were more likely to live in disadvantaged areas and had differing clinical management and patterns of care. However, findings regarding geographical variations in tumour characteristics or diagnostic outcomes were inconsistent.

CONCLUSIONS

A general pattern of poorer survival and variations in clinical management for Australian female patients with breast cancer from non-metropolitan areas was evident. However, the wide variability in data sources, measures, study quality, time periods and geographical classification made direct comparisons across studies challenging. The review highlighted the need to promote standardisation of geographical classifications and increased comparability of data systems. It also identified key gaps in the existing literature including a lack of studies on advanced breast cancer, geographical variations in treatment choices from the perspective of patients and post-treatment follow-up.

Understanding the effects of socioeconomic status along the breast cancer continuum in Australian women: a systematic review of evidence

Background

Globally, the provision of equitable outcomes for women with breast cancer is a priority for governments. However, there is growing evidence that a socioeconomic status (SES) gradient exists in outcomes across the breast cancer continuum – namely incidence, diagnosis, treatment, survival and mortality. This systematic review describes this evidence and, because of the importance of place in defining SES, findings are limited to the Australian experience.

Methods

An on-line search of PubMed and the Web of Science identified 44 studies published since 1995 which examined the influence of SES along the continuum. The critique of studies included the study design, the types and scales of SES variable measured, and the results in terms of direction and significance of the relationships found. To aid in the interpretation of results, the findings were discussed in the context of a systems dynamic feedback diagram.

Results

We found 67 findings which reported 107 relationships between SES within outcomes along the continuum. Results suggest no differences in the participation in screening by SES. Higher incidence was reported in women with higher SES whereas a negative association was reported between SES and diagnosis. Associations with treatment choice were specific to the treatment choice undertaken. Some evidence was found towards greater survival for women with higher SES, however, the evidence for a SES relationship with mortality was less conclusive.

Conclusions

In a universal health system such as that in Australia, evidence of an SES gradient exists, however, the strength and direction of this relationship varies along the continuum. This is a complex relationship and the heterogeneity in study design, the SES indicator selected and its representative scale further complicates our understanding of its influence. More complex multilevel studies are needed to better understand these relationships, the interactions between predictors and to reduce biases introduced by methodological issues.

Understanding Women's Choice of Mastectomy Versus Breast Conserving Therapy in Early-Stage Breast Cancer

OBJECTIVE

To identify factors that influence Saskatchewan women's choice between breast conserving therapy (BCT) and mastectomy in early-stage breast cancer (ESBC) and to compare and contrast underlying reasons behind choice of BCT versus mastectomy.

METHODS

Interpretive description methods guided this practice-based qualitative study. Data were analyzed using thematic analysis and presented in thematic maps.

RESULTS

Women who chose mastectomy described 1 of the 3 main themes: worry about cancer recurrence, perceived consequences of BCT treatment, or breast-tumor size perception. In contrast, women chose BCT because of 3 different themes: mastectomy being too radical, surgeon influence, and feminine identity.

CONCLUSIONS

Although individual reasons for choosing mastectomy versus BCT have been discussed in the literature before, different rationale underlying each choice has not been previously described. These results are novel in identifying interdependent subthemes and secondary reasons for each choice. This is important for increased understanding of factors influencing a complicated decision-making process.

Geographic variation in the intended choice of adjuvant treatments for women diagnosed with screen-detected breast cancer in Queensland

Background

Although early diagnosis and improved treatment can reduce breast cancer mortality, there still appears to be a geographic differential in patient outcomes. This study aims to determine and quantify spatial inequalities in intended adjuvant (radio-, chemo- and hormonal) therapy usage among women with screen-detected breast cancer in Queensland, Australia.

Methods

Linked population-based datasets from BreastScreen Queensland and the Queensland Cancer Registry during 1997−2008 for women aged 40−89 years were used. We adopted a Bayesian shared spatial component model to evaluate the relative intended use of each adjuvant therapy across 478 areas as well as common spatial patterns between treatments.

Results

Women living closer to a cancer treatment facility were more likely to intend to use adjuvant therapy. This was particularly marked for radiotherapy when travel time to the closest radiation facility was 4 + h (OR =0.41, 95 % CrI: [0.23, 0.74]) compared to <1 h. The shared spatial effect increased towards the centres with concentrations of radiotherapy facilities, in north-east (Townsville) and south-east (Brisbane) regions of Queensland. Moreover, the presence of residual shared spatial effects indicates that there are other unmeasured geographical barriers influencing women’s treatment choices.

Conclusions

This highlights the need to identify the additional barriers that impact on treatment intentions among women diagnosed with screen-detected breast cancer, particularly for those women living further away from cancer treatment centers.

Electronic supplementary material

The online version of this article (doi:10.1186/s12889-015-2527-2) contains supplementary material, which is available to authorized users.

Examining Determinants of Radiotherapy Access: Do Cost and Radiotherapy Inconvenience Affect Uptake of Breast-conserving Treatment for Early Breast Cancer?

AIMS

Radiotherapy utilisation is likely affected by multiple factors pertaining to radiotherapy access. Radiotherapy is an integral component of breast-conserving treatment (BCT) for early breast cancer. We aimed to determine if stepwise improvements in radiotherapy access in regional Australia affected the uptake of BCT and thus radiotherapy.

MATERIALS AND METHODS

Breast cancer operations in the Central Coast of New South Wales between January 2010 and March 2014 for T1-2N0-1M0 invasive or in situ (≤5 cm) disease in female patients eligible for BCT were examined. BCT uptake was calculated for three 1 year periods: period 1 (local radiotherapy available at cost to user or out of area radiotherapy with travel cost and inconvenience); period 2 (as per period 1 + publicly funded transport and radiotherapy at out of area facilities at no cost to user); period 3 (as per period 1 + publicly funded local radiotherapy at no cost to user).

RESULTS

In total, 574 cases met eligibility criteria. BCT declined with increasing distance to publicly funded radiotherapy (P = 0.035). BCT rates for periods 1, 2 and 3 were 63% (113/180), 61% (105/173) and 71% (156/221). There were no statistically significant differences in BCT between periods 1 and 2 in the whole cohort or within age, histology or tumour size subgroups. Overall, there was a 9% increase in BCT in the whole cohort in period 3 compared with periods 1 and 2 (P = 0.031). This increase was statistically significant for women over 70 years (19% increase, P = 0.034), for women with ductal carcinoma in situ (25% increase, P = 0.013) and for women with primary tumours that were ≤10 mm (21% increase, P = 0.016).

CONCLUSIONS

Improving the affordability of radiotherapy through publicly funded transport and radiotherapy at out of area facilities did not improve BCT uptake in a region where radiotherapy was locally available, albeit at cost to the user. Improving both affordability and convenience through the provision of local publicly funded radiotherapy increased BCT uptake. Service availability and affordability have long been recognised as important determinants of radiotherapy access. Our findings suggest that inconvenience may also influence radiotherapy utilisation.

Breast conserving surgery versus mastectomy: the influence of comorbidities on choice of surgical operation in the Department of Defense health care system

BACKGROUND

Studies on the effect of comorbidities on breast cancer operation have been limited and inconsistent. This study investigated whether pre-existing comorbidities influenced breast cancer surgical operation in an equal access health care system.

METHODS

This study was based on linked Department of Defense cancer registry and medical claims data. The study subjects were patients diagnosed with stage I to III breast cancer during 2001 to 2007. Logistic regression was used to determine if comorbidity was associated with operation type and time between diagnosis and operation.

RESULTS

Breast cancer patients with comorbidities were more likely to receive mastectomy (odds ratio [OR] = 1.27; 95% confidence interval [CI], 1.14 to 1.42) than breast conserving surgery plus radiation. Patients with comorbidities were also more likely to delay having operation than those without comorbidities (OR = 1.27; 95% CI, 1.14 to 1.41).

CONCLUSIONS

In an equal access health care system, comorbidity was associated with having a mastectomy and with a delay in undergoing operation.

Developing a sustainable model of rural cancer care: the Western Australian Cancer Network project

PROBLEM

Cancer-related mortality is higher in rural areas than in urban centres. One of the contributing factors is limited access to treatment options in rural areas.

DESIGN

An evaluation of the effectiveness of the Western Australian Cancer Network (CanNET WA) pilot project was undertaken using qualitative methods and document analysis.

SETTING

CanNET WA was established in the Great Southern region of Western Australia.

KEY MEASURES FOR IMPROVEMENT

Three measures were assessed: impact of the CanNET WA on consumers, care providers and changes to systems and processes.

STRATEGIES FOR CHANGE

CanNET WA comprised a number of initiatives that together led to an improvement in cancer care. These included a multidisciplinary cancer team, improved access to visiting medical specialists, formal links with tertiary cancer centres, increased primary health involvement in cancer care and increased education regarding cancer care for local health care providers.

EFFECTS OF CHANGE

Changes in the three key outcome measures were reported. Consumers had greater choice of treatment options and had more involvement in decision making. Health professionals reported improvements in care coordination and in peer support related to the new multidisciplinary cancer care team, and improved links with tertiary cancer centres in Perth. Systemic changes included mapping of referral pathways and tumour-specific care pathways.

LESSONS LEARNT

  CanNET WA has demonstrated the need for coordinated cancer care for rural people that offers care locally whenever possible. The success of the project paved the way for the rollout of the CanNET WA concept into other regional areas of Western Australia.

Effect of community population size on breast cancer screening, stage distribution, treatment use and outcomes

OBJECTIVE

Residents of rural communities have decreased access to cancer screening and treatments compared to urban residents, though use of resources and patient outcomes have not been assessed with a comprehensive population-based analysis. The objectives of this study were to investigate whether breast cancer screening and treatments were utilized less frequently in rural BC and whether this translated into differences in outcomes.

METHODS

All patients diagnosed with breast cancer in British Columbia (BC) during 2002 were identified from the Cancer Registry and linked to the Screening Mammography database. Patient demographics, pathology, stage, treatments, mammography use and death data were abstracted. Patients were categorized as residing in large, small and rural local health authorities (LHAs) using Canadian census information. Use of resources and outcomes were compared across these LHA size categories. We hypothesized that mastectomy rates (instead of breast-conserving surgery) would be higher in rural areas, since breast conservation is standardly accompanied by adjuvant radiotherapy, which has limited availability in rural BC. In contrast we hypothesized that cancer screening and systemic therapy use would be similar, as they are more widely dispersed across BC. Exploratory analyses were performed to assess whether disparities in screening and treatment utilization translated into differences in survival.

RESULTS

2,869 breast cancer patients were included in our study. Patients from rural communities presented with more advanced disease (p=0.01). On multivariable analysis, patients from rural, compared to urban, LHAs were less likely to be screening mammography attendees (OR=0.62; p<0.001). Women from rural communities were less likely to undergo breast-conserving surgery (multivariable OR=0.47; p<0.001). There was no significant difference in use of chemotherapy (p=0.54) or hormonal therapy (p=0.36). The 5-year breast cancer-specific survival for large, small and rural LHAs was 90%, 88% and 86%, respectively (p=0.08), while overall survival was 84%, 81% and 77%, respectively (p=0.01). On multivariable analysis with 7.4 years of median follow-up, neither breast cancer-specific survival (HR=1.16; 0.76-1.76; p=0.49) nor overall survival (HR=1.25; 0.92-1.70; p=0.16) was significantly worse for patients from rural compared to large LHAs.

CONCLUSION

There was a significant difference in screening mammography use, stage distribution and loco-regional treatments use by population size of LHA. After controlling for differences in patient and tumour factors by LHA, survival was not significantly different.

Breast-conserving therapy versus modified radical mastectomy: socioeconomic status determines who receives what--results from case-control study in Tianjin, China

BACKGROUND

Despite anecdotal evidence linking socioeconomic status and choices on surgical management in breast cancer patients in China, no scientific evaluations have ever been conducted. The objective of this study was to evaluate patient factors that influence patients' treatment options between breast cancer patients receiving breast-conserving therapy (BCT) and modified radical mastectomy (MRM).

METHODS

A total of 268 stage I-II breast cancer patients treated with BCT in Tianjin Cancer Hospital, from January 2005 to January 2007, were compared with 200 randomly selected breast cancer patients (controls) treated with MRM. A personal health questionnaire (PHQ) was used to assess the factors that may affect the surgical decision making. Chi-squared test and multiple logistic regressions were used to examine factors associated with BCT.

RESULTS

BCT patients who were younger and were more likely to live in urban areas had medical insurance, higher levels of education and family income. Patients with medical insurance coverage were approximately six times more likely to receive BCT than patients without medical insurance after controlling for other potentially confounding factors. Similar results were also observed for family income. The observed differences cannot be explained by clinical aspects of their disease, such as tumor stage, estrogen receptor, and lymph node involvement.

CONCLUSION

Breast cancer patients' socioeconomic status, rather than their clinical condition, is the predominant factor in determining whether a breast cancer patient receives BCT or not. These results provide a snapshot on how socioeconomic status influences cancer care provision in China. Future efforts should be made towards reducing discrepancies in treatment options for cancer patients caused by social class and socioeconomic status.

Measuring the influence of colleagues on a consultant team's use of breast conserving surgery

OBJECTIVES

The aim of this study was to examine potential reasons why the use of breast conserving surgery (BCS) for breast cancer varies substantially between hospital teams in England, and in particular to examine whether colleague influence has a role in influencing BCS rates locally.

METHODS

Routinely collected Hospital Episode Statistics (HES) data relating to 420 surgical teams in England who performed more than ten breast cancer operations during the financial year 2006/07 were used to identify predictors of team BCS use. Team BCS rates (as a proportion of all types of breast excision surgery) were subject to a regression analysis that incorporated, as independent variables, a range of patient, organizational, and local demographic factors, as well as the BCS rate of colleagues working alongside them in the same hospitals(s).

RESULTS

After adjusting for the effects of other variables, BCS use by colleagues working in the same hospital(s) was a significant predictor of a team's own BCS rate (standardized b = 0.224; p < .001), denoting a typical 3 percent increase in a team's BCS rate for every 10 percent increase in the BCS rate of colleagues.

CONCLUSIONS

The practice of colleagues seems to have a measurable influence upon a surgical team's BCS usage. Guidance from HTA organizations can set national standards about the use of new techniques and innovations, but dissemination can be either slowed down or accelerated by the influence of local colleagues. A strategy of disseminating guidance through professional networks or "local champions" could be a powerful avenue for change.

Variation in the management of early breast cancer in rural and metropolitan centres: implications for the organisation of rural cancer services

The study examines the management and outcomes of women with early invasive breast cancer treated in rural and metropolitan centres over a nine-year observation period. A prospective audit of the treatment and outcomes of 2081 women with early breast cancer who underwent potentially curative surgery between 1997 and 2006 in metropolitan Canberra or in the surrounding rural region was completed. Overall, there was good agreement between published guidelines and the treatment received by the women in the study. However, women treated in rural centres were less likely to receive postoperative radiotherapy after breast-conserving surgery, or to undergo axillary lymph node surgery or sentinel lymph node biopsy compared with women treated in metropolitan centres. Surgery in a rural centre was associated with increased breast cancer recurrence (HR = 1.54, p < 0.001) and increased breast cancer mortality (HR = 1.84, p < 0.001), after adjustment for age and tumour characteristics. Non-cancer related mortality was increased in women treated in rural centres compared with women travelling to a metropolitan centre for surgery (HR = 2.08; p = 0.005). There were differences in both the care provided and treatment outcomes between women treated in rural centres and women treated in metropolitan centres. However, the increased non-cancer related mortality in women treated in rural centres suggests an increased medical comorbidity in this group. Initiatives supporting rural-based surgeons to adopt new procedures such as sentinel node biopsy may help to optimise rural breast cancer treatment.

Does quality of life among breast cancer survivors one year after diagnosis differ depending on urban and non-urban residence? A comparative study

BACKGROUND

This study examined the quality of life (QOL), measured by the Functional Assessment of Cancer Therapy (FACT) questionnaire, among urban (n = 277) and non-urban (n = 323) breast cancer survivors and women from the general population (n = 1140) in Queensland, Australia.

METHODS

Population-based samples of breast cancer survivors aged < 75 years who were 12 months post-diagnosis and similarly-aged women from the general population were recruited between 2002 and 2007.

RESULTS

Age-adjusted QOL among urban and non-urban breast cancer survivors was similar, although QOL related to breast cancer concerns was the weakest domain and was lower among non-urban survivors than their urban counterparts (36.8 versus 40.4, P < 0.01). Irrespective of residence, breast cancer survivors, on average, reported comparable scores on most QOL scales as their general population peers, although physical well-being was significantly lower among non-urban survivors (versus the general population, P < 0.01). Overall, around 20%-33% of survivors experienced lower QOL than peers without the disease. The odds of reporting QOL below normative levels were increased more than two-fold for those who experienced complications following surgery, reported upper-body problems, had higher perceived stress levels and/or a poor perception of handling stress (P < 0.01 for all).

CONCLUSIONS

Results can be used to identify subgroups of women at risk of low QOL and to inform components of tailored recovery interventions to optimize QOL for these women following cancer treatment.

Change in clinical practice after publication of guidelines on breast cancer treatment

OBJECTIVE

Several studies raise questions about whether clinical practice guidelines actually guide practice. We evaluated patterns of use of breast-conserving surgery (BCS) over time to examine the effect of guideline publication.

DESIGN

Retrospective analysis of time-series data on breast cancer treatment. Multiple logistic regression analysis was performed, adjusting for covariates including the patient's age, comorbidity status and admission year, to assess whether the use of BCS was higher after publication of treatment guidelines.

SETTING

Five teaching hospitals participating in the Quality Improvement/Indicator Project (QIP) in Japan.

PARTICIPANTS

Female breast cancer patients who received surgical treatment at five teaching hospitals from January 1996 through December 2007 (n = 2199).

MAIN OUTCOME MEASURE

Rates of use of BCS.

RESULTS

The proportion of BCS use increased from 26.4% before guideline publication to 59.9% after guideline publication in Japan. After controlling for other characteristics, the use of BCS has increased significantly over time, especially since 2001. Women aged 70 years and older (P=0.004) and those with any comorbidity (P < 0.001) were significantly less likely to receive BCS.

CONCLUSIONS

This study demonstrated that the adjusted proportion of BCS has increased dramatically since 2001, 2 years after guideline publication in Japan and this is consistent with a relationship between guideline publication and a change in this clinical practice.

Lung cancer: an exploration of patient and general practitioner perspectives on the realities of care in rural Western Australia

OBJECTIVE

This study investigates if the pattern of diagnostic testing for suspected lung cancer, stage at diagnosis, patterns of specialist referral and treatment options offered to people in rural Western Australia are similar to those in the metropolitan area. It then explores the barriers to quality care in rural areas as perceived by GPs and patients.

METHODS

There was a review of GP records to obtain clinical and referral information and an in-depth interview with patients and GPs concerning their perspectives of the quality of care.

RESULTS/DISCUSSION

We selected age and sex-matched samples of 22 rural and 21 metropolitan patients. Rural patients had more symptoms and took longer to consult their GPs, leading to later diagnosis and fewer treatment options. They experienced longer waits for specialist consultation and underwent less diagnostic testing. The GPs always referred lung cancer patients to a specialist, usually a respiratory physician. Teaching hospitals were preferred because of their comprehensive facilities and multidisciplinary teams. Rural GPs reported distance, time and availability of appointments as barriers; they also raised concerns about late confirmation of diagnosis. Rural and metropolitan patients were equally satisfied with their quality of care, but rural patients desired more information and better communication between hospital and GPs. Facilities for rural patients at some metropolitan hospitals were criticised. In conclusion, rural patients received a different care pattern from metropolitan patients and they and their GPs raised concerns about the equity and quality of lung cancer care.

Hospital Planning: The Risks of Basing the Future on Past Data

Planning for capital development of public hospitals in Victoria is guided by a multi-stage process with comprehensive data analysis and thorough approval processes at each of the stages. The long development timeframes and the limitations in the data available to project service utilisation may negatively impact upon the service planning processes, and in some cases newly developed hospitals have not been sufficiently planned to meet community needs. This paper suggests that service utilisation forecasts derived from administrative databases require a more detailed verification process than currently exists. The process requires consideration of the drivers of demand to document the core assumptions about the future drivers, benchmarks with other jurisdictions, epidemiological, comparative and corporate needs assessment to explain the differences in utilisation rates, and sensitivity analysis. Given the cost of hospital construction and the rate of change in the healthcare sector, it is important that future hospital planning processes do not accept current utilisation trends as valid for future planning without this level of verification.

Making the most of routine data in palliative care research--a case study analysis of linked hospital and mortality data on cancer and heart failure patients in Scotland and Oxford

The research base of palliative care is growing rapidly, but despite methodological advances, some of the practical challenges of working with people at the end of life will persist. This means that analysis of routine data is arguably more important in studying palliative care than it is in other aspects of health services research. End-of-life researchers have been using the high-quality linked data from cancer registries for many years. This paper explores the value of a less well-known resource for palliative care research: linked mortality and hospital activity data. Two case studies are presented using information from Scotland (population 5.1 million) and the former Oxford region of England (population 2.5 million). The advantages and limitations of linked hospital and mortality data for research and service planning in palliative care are drawn out through analyses investigating hospital bed utilisation by people with cancer and heart failure and the influence of social deprivation on the use of hospital services in the last year of life. The use of such data deserves a higher profile.

Patterns of Surgical Treatment for Women Diagnosed with Early Breast Cancer in Queensland

BACKGROUND

Australian women with early breast cancer should be given the choice between breast-conserving surgery (BCS) or mastectomy. This is the first Australian study to report on patterns of surgical care specifically for early breast cancer at a population level.

METHODS

Two population-based routine data collections were linked to obtain surgical treatment information for breast cancer cases diagnosed in 2004 in Queensland, from which we identified 1274 cases of early female breast cancer. Logistic regression was used to assess the likelihood of female breast cancer patients having mastectomy, BCS, and axillary node dissection, after adjusting for patient and hospital demographics, tumor size, and comorbidities.

RESULTS

Three-quarters (77%) of women had BCS, 29% had a mastectomy, and 86% had dissection of the axillary lymph nodes. The likelihood of women having mastectomy was higher among women living in rural areas, those treated in public hospitals, and women who had comorbidities of anemia or heart failure. In contrast, BCS was more likely for women treated in private hospitals or hospitals with high surgical caseload. Heart failure decreased the likelihood of BCS. Having an axillary node dissection was more likely among younger women and those treated in high caseload hospitals.

CONCLUSION

The observed differentials in surgical treatment for early breast cancer patients suggest that access issues may have contributed to the decision-making process. Understanding the reasons why women with early breast cancer choose a certain treatment strategy should be a focus of future research.

Rural–urban differences in the presentation, management and survival of breast cancer in Western Australia

From all women diagnosed with invasive breast cancer in 1999 in Western Australia, rural and urban women were compared with regard to mode of detection, tumour characteristics at presentation, diagnostic investigations, treatment and survival. Women from rural areas with breast cancer (n=206, 23%) were less likely to have open biopsy with frozen section (P<0.001), breast-conserving surgery (P<0.001), adjuvant radiotherapy (P=0.004) and hormonal therapy (P=0.03), and were less likely to be treated by a high caseload breast cancer surgeon (P<0.001). Adjusting for age and tumour characteristics, rural women had an increased likelihood of death within 5 years of breast cancer diagnosis (HR 1.62, 95% CI 1.10-2.38). This difference was not significant after adjustment for treatment factors (HR 1.36, 95% CI 0.90-2.04).

The effect of locational disadvantage on hospital utilisation and outcomes in Western Australia

This study analyses the effect of location of residence on hospital utilisation and outcomes using geocoded hospital morbidity and mortality data for the Western Australian population from 1994 to 1999. Compared to highly accessible areas, the overall hospital admission rate ratio was 2.27 (95% CI 2.19-2.36) for those in moderately accessible areas and 2.35 (95% CI 2.23-2.47) for those in remote areas. The corresponding ratios for total length of stay were 1.19 (95% CI 1.17-1.20) and 1.25 (95% CI 1.23-1.27) and the hazard ratios for risk of readmission at 30 days were 1.06 (95% CI 1.04-1.07) and 1.17 (95% CI 1.15-1.19). This study represents an important advance in describing the effects of remoteness on health service utilisation and outcomes.

SURGICAL MANAGEMENT OF BREAST CANCER IN A SMALL PERIPHERAL NEW ZEALAND HOSPITAL

BACKGROUND

Peripheral hospitals are perceived to be at a disadvantage in providing treatment for breast cancer, especially with regard to breast conservative surgery (BCS) because of the requirement of adjuvant radiotherapy. Wairau Hospital is a 100-bed peripheral hospital in New Zealand with no on-site radiotherapy unit.

METHODS

A retrospective audit of the surgical management of breast cancer between 1998 and 2002 was carried out.

RESULTS

One hundred and fifty-seven presentations during the audit period. Despite the lack of tertiary resources, we report an overall BCS rate of 58.6%, consistent with the appropriate New Zealand guidelines. Of screen-detected cancers, 81.6% underwent BCS. Only five patients requested mastectomy and of those undergoing BCS, five patients refused subsequent adjuvant radiotherapy. This was because of frailty from age and comorbidities and the inconvenience of travel.

CONCLUSION

High rates of BCS are possible in peripheral hospitals. We postulate that intensive support and a visiting outpatient oncological service help empower patients to seek BCS if appropriate. A strong partnership between surgical, radiological and oncological services is also vital.

URBAN?RURAL DIFFERENCES IN THE MANAGEMENT OF SCREEN-DETECTED INVASIVE BREAST CANCER AND DUCTAL CARCINOMA IN SITU IN VICTORIA

BACKGROUND

At least one-third of primary breast cancers in Australia are discovered by population-based mammographic screening. The aim of this study was to determine whether there were any differences in the surgical treatment of women diagnosed with breast cancer by BreastScreen Victoria between urban and rural populations and to investigate temporal changes in their pattern of care.

METHODS

An analysis of women diagnosed with breast cancer (invasive and non-invasive) by BreastScreen Victoria from 1993 to 2000 was conducted. Descriptive analyses of the proportion of women undergoing each surgical treatment type over time were carried out. Logistic regression was used to assess the effect of urban-rural residence on each treatment outcome while accounting for possible confounding factors.

RESULTS

Rural women with invasive breast cancer were less likely to undergo breast-conserving surgery (BCS) compared with urban women (odds ratio, 0.42; 95% confidence interval, 0.35-0.50). The same was also true for rural women with ductal carcinoma in situ (odds ratio, 0.53; 95% confidence interval, 0.29-0.96). This difference was independent of patient and tumour characteristics, including tumour size, surgeon caseload, patient's age and socioeconomic status. It also persisted over time despite a steady overall increase in use of BCS for both invasive and non-invasive cancers over the study period.

CONCLUSIONS

Among Victorian women with screen-detected breast cancer, urban women consistently had higher rates of BCS compared with rural women despite increased overall adoption of BCS. Reasons for this disparity are still unclear and warrant further investigation.

Mastectomy or breast conserving surgery? Factors affecting type of surgical treatment for breast cancer--a classification tree approach

BACKGROUND

A critical choice facing breast cancer patients is which surgical treatment--mastectomy or breast conserving surgery (BCS)--is most appropriate. Several studies have investigated factors that impact the type of surgery chosen, identifying features such as place of residence, age at diagnosis, tumor size, socio-economic and racial/ethnic elements as relevant. Such assessment of "propensity" is important in understanding issues such as a reported under-utilisation of BCS among women for whom such treatment was not contraindicated. Using Western Australian (WA) data, we further examine the factors associated with the type of surgical treatment for breast cancer using a classification tree approach. This approach deals naturally with complicated interactions between factors, and so allows flexible and interpretable models for treatment choice to be built that add to the current understanding of this complex decision process.

METHODS

Data was extracted from the WA Cancer Registry on women diagnosed with breast cancer in WA from 1990 to 2000. Subjects' treatment preferences were predicted from covariates using both classification trees and logistic regression.

RESULTS

Tumor size was the primary determinant of patient choice, subjects with tumors smaller than 20 mm in diameter preferring BCS. For subjects with tumors greater than 20 mm in diameter factors such as patient age, nodal status, and tumor histology become relevant as predictors of patient choice.

CONCLUSION

Classification trees perform as well as logistic regression for predicting patient choice, but are much easier to interpret for clinical use. The selected tree can inform clinicians' advice to patients.

Long-term survival outcomes following breast cancer surgery in Western Australia

BACKGROUND

Mortality rates from breast cancer are stabilizing or falling in many developed countries including Australia, however, survival outcomes are known to vary by social, demographic and treatment related factors. The aim of the present study was to investigate how hospital, social and demographic factors were associated with survival outcomes from surgically treated breast cancer for all women living in Western Australia.

METHODS

The WA Data Linkage System was used to access hospital morbidity, death and cancer information for all women diagnosed with invasive breast cancer in Western Australia 1982-2000. Relative survival and Cox proportional hazards regression analyses were used to identify social, demographic and hospital factors associated with an increased risk of dying from breast cancer or dying from any cause.

RESULTS

Survival outcomes improved in all women diagnosed in more recent calendar periods. However, a significantly increased risk of dying was observed for women who underwent initial surgical treatment in regional public hospitals outside of the state capital, Perth. Consistent with other reports, women aged greater than 80 years and younger than 35 years at diagnosis also had poorer survival outcomes. Residential location, socioeconomic status and race were not associated with survival after adjusting for treatment, health and hospital related factors.

CONCLUSIONS

Despite overall improvements in survival of women diagnosed with breast cancer in Western Australia, initial surgical treatment in public hospitals outside of Perth was associated with significantly poorer outcomes.

Rates for mastectomy are lower in women attending a breast-screening programme

BACKGROUND

Mammographic screening for breast cancer facilitates earlier recognition of lesions, thus potentially allowing for breast-conserving surgery. Few studies have compared the final surgical outcomes of women presenting through breast screening programmes with those presenting via other sources. Are breast cancer patients presenting through BreastScreen more likely to undergo breast-conserving surgery than those presenting from other sources?

METHODS

Using the Royal Perth Hospital (RPH) Multidisciplinary Breast Service Database, the final surgical outcomes were reviewed for 723 women treated for breast cancer at RPH between January 2000 and August 2002. During this period, 397 patients were referred to the RPH Multidisciplinary Breast Clinic from BreastScreen WA, and 326 were referred from other sources.

RESULTS

Of all patients undergoing surgery for breast cancer, 58% in the screen group and 36% in the non-screen group had breast-conserving surgery (P < 0.0001). When surgical outcomes for women in the BreastScreen target age range of 50-69 years were analysed, 59.5% in the screen group and 42.3% in the non-screen group had breast-conserving surgery (P < 0.001). Patient choice was second only to disease extent as a factor determining the outcome of mastectomy. In both cohorts, more than 40% of patients who underwent re-excisional surgery for positive margins, after initial breast-conserving surgery, had residual invasive or in situ disease present.

CONCLUSIONS

At RPH, BreastScreen patients were more likely to undergo breast-conserving surgery than those who presented from other sources. A significant proportion of women with positive margins after initial breast-conserving surgery had residual in situ or invasive disease. Re-excision for positive margins was thus warranted.

Subsequent surgery after initial breast conserving surgery: a population based study

BACKGROUND

In line with current Australian early breast cancer management guidelines, more women are having breast conserving surgery to treat breast cancer when appropriate. Some women will undergo further surgery because of involved margins, early local relapse, or other factors including patient choice. The aim of this study was to investigate whether socio-economic, demographic or hospital factors were associated with the risk of re-excision or subsequent mastectomy.

METHODS

A record linkage population-based study on 12 711 women diagnosed with breast cancer in Western Australia from 1982 to 2000 who underwent breast surgery within 12 months of diagnosis was performed. Logistic regression was used to identify social, demographic and hospital factors associated with the risk of undergoing further surgery following initial breast conserving surgery.

RESULTS

The proportion of women undergoing initial breast conserving surgery doubled from 33% in 1982-1985 to 72% in 1998-2000. The proportion of women who underwent further surgery following initial breast conserving surgery decreased from 50 to 30% over the same period. The risk of re-excision or subsequent mastectomy was between 2.4 (95% CI 1.7-3.4) and 5.0 (95% CI 3.4-7.4) times greater if initial surgery was performed in a non-metropolitan hospital compared to Perth hospitals. Younger women were between 1.7 (95% CI 1.4-2.0) and 2.1 (95% CI 1.5-3.0) times more likely to undergo re-excisions compared to women aged 50-64 years of age.

CONCLUSIONS

Young women and women initially treated in non-metropolitan hospitals were at an increased risk of re-excision or a subsequent mastectomy following initial breast conserving surgery to treat breast cancer. Efforts need to be directed towards improving specialist health services outside of Perth if women continue to be treated for breast cancer in non-metropolitan hospitals.

Improving the evidence base for promoting quality and equity of surgical care using population-based linkage of administrative health records

This paper highlights the uses of population-based linkage of administrative health records to improve the quality, safety, and equity of surgical care. The primary focus of the paper is on the transfer of this type of research into policy and practice. In the modern era of evidence-based medicine, it is essential that not only is new evidence incorporated into clinical practice, but that the implementation and associated costs are monitored; this requires the setting of appropriate benchmarking criteria. Furthermore, it is imperative that all members of the population receive optimal health care and people are not discriminated against because of socio-economic, locational, or racial factors. The use of data linkage can assist with examining these aspects of health care and this paper provides real-life examples such as costs and adverse events from laparoscopic cholecystectomy, event monitoring for post-operative venous thrombosis, and inequalities in cancer care. The influence of these studies on clinical practice and policy is also discussed. Furthermore, this paper discusses the strengths and weaknesses of data linkage research and how to avoid pitfalls. Health researchers, clinicians, and policy-makers will find the discussion of these issues useful in their everyday practice.

INEQUALITIES IN RURAL HEALTH CARE: DIFFERENCES IN SURGICAL INTERVENTION BETWEEN METROPOLITAN AND RURAL WESTERN AUSTRALIA

BACKGROUND

To compare surgical procedure rates between metropolitan and rural/remote residents in Western Australia (WA).

METHODS

The WA Data Linkage System was used to identify all patients who underwent a procedure for cataract, ureteric calculi or urinary outflow obstruction symptoms for the time periods 1981-2000, 1981-1997 and 1981-1995, respectively. Age-standardized procedure rates were calculated and Poisson regression modelling was used to estimate effects of locality of residence and demographic covariates.

RESULTS

Overall, rural/remote patients underwent first-time procedures for cataract (IRR 0.92; 95% CI 0.90-0.94), ureteric calculi (0.76; 0.72-0.80), or urinary outflow obstruction (0.71; 0.69-0.74) less frequently than patients in the metropolitan area. They were also significantly less likely to undergo multiple procedures for cataracts (0.90; 0.88-0.91) and ureteric calculi (0.69; 0.67-0.73).

CONCLUSION

A distinctly reduced level of surgical intervention was found in rural patients for three generally non-life threatening conditions. The reasons for this require further investigation.