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1.
Blood ; 139(15): 2316-2337, 2022 04 14.
Artigo em Inglês | MEDLINE | ID: mdl-35108359

RESUMO

The differentiation of B cells into plasmablasts (PBs) and then plasma cells (PCs) is associated with extensive cell reprogramming and new cell functions. By using specific inhibition strategies (including a novel morpholino RNA antisense approach), we found that early, sustained upregulation of the proviral integrations of Moloney virus 2 (PIM2) kinase is a pivotal event during human B-cell in vitro differentiation and then continues in mature normal and malignant PCs in the bone marrow. In particular, PIM2 sustained the G1/S transition by acting on CDC25A and p27Kip1 and hindering caspase 3-driven apoptosis through BAD phosphorylation and cytoplasmic stabilization of p21Cip1. In PCs, interleukin-6 triggered PIM2 expression, resulting in antiapoptotic effects on which malignant PCs were particularly dependent. In multiple myeloma, pan-PIM and myeloid cell leukemia-1 (MCL1) inhibitors displayed synergistic activity. Our results highlight a cell-autonomous function that links kinase activity to the newly acquired secretion ability of the PBs and the adaptability observed in both normal and malignant PCs. These findings should finally prompt the reconsideration of PIM2 as a therapeutic target in multiple myeloma.


Assuntos
Mieloma Múltiplo , Proteínas Serina-Treonina Quinases , Proteínas Proto-Oncogênicas , Apoptose , Linhagem Celular Tumoral , Sobrevivência Celular , Humanos , Mieloma Múltiplo/tratamento farmacológico , Mieloma Múltiplo/genética , Plasmócitos/patologia , Proteínas Serina-Treonina Quinases/genética , Proteínas Proto-Oncogênicas/genética
2.
Blood ; 137(9): 1166-1180, 2021 03 04.
Artigo em Inglês | MEDLINE | ID: mdl-33150420

RESUMO

The terminal differentiation of B cells into antibody-secreting cells (ASCs) is a critical component of adaptive immune responses. However, it is a very sensitive process, and dysfunctions lead to a variety of lymphoproliferative neoplasias including germinal center-derived lymphomas. To better characterize the late genomic events that drive the ASC differentiation of human primary naive B cells, we used our in vitro differentiation system and a combination of RNA sequencing and Assay for Transposase-Accessible Chromatin with high-throughput sequencing (ATAC sequencing). We discovered 2 mechanisms that drive human terminal B-cell differentiation. First, after an initial response to interleukin-4 (IL-4), cells that were committed to an ASC fate downregulated the CD23 marker and IL-4 signaling, whereas cells that maintained IL-4 signaling did not differentiate. Second, human CD23- cells also increased IRF4 protein to levels required for ASC differentiation, but they did that independently of the ubiquitin-mediated degradation process previously described in mice. Finally, we showed that CD23- cells carried the imprint of their previous activated B-cell status, were precursors of plasmablasts, and had a phenotype similar to that of in vivo preplasmablasts. Altogether, our results provide an unprecedented genomic characterization of the fate decision between activated B cells and plasmablasts, which provides new insights into the pathological mechanisms that drive lymphoma biology.


Assuntos
Linfócitos B/imunologia , Fatores Reguladores de Interferon/imunologia , Interleucina-4/imunologia , Plasmócitos/imunologia , Receptores de IgE/imunologia , Fator de Transcrição STAT6/imunologia , Células Cultivadas , Humanos , Ativação Linfocitária , Linfoma/imunologia , Transdução de Sinais
3.
Eur J Contracept Reprod Health Care ; 27(5): 424-430, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35899828

RESUMO

PURPOSE: Long-acting reversible contraceptives (LARC), such as intrauterine devices (IUD) and implants, are highly effective. However, the uptake of LARC in Australia has been slow and the oral contraceptive pill (OC) remains the best known and most widely used contraceptive. Our aim was to investigate women's preferences for the features of LARC. METHODS: We used a discrete choice experiment (DCE) in which each respondent completed 12 choice tasks. We recruited a general population sample of 621 women in Australia aged 18-49 using an online survey panel. A mixed logit model was used to analyse DCE responses; a latent class model explored preference heterogeneity. RESULTS: Overall, 391 (63%) of women were currently using contraception; 49.3% were using an OC. About 22% of women were using a LARC. Women prefer products that are more effective in preventing pregnancy, have low levels of adverse events (including negative effects on mood), and which their general practitioner (GP) recommends or says is suitable for them. CONCLUSIONS: Women have strong preferences for contraceptive products that are effective, safe, and recommended by their GP. The results indicate which characteristics of LARCs need to be front and centre in information material and in discussions between women and healthcare professionals.


Assuntos
Anticoncepcionais Femininos , Dispositivos Intrauterinos , Contracepção Reversível de Longo Prazo , Anticoncepção/métodos , Anticoncepcionais Femininos/uso terapêutico , Anticoncepcionais Orais , Feminino , Humanos , Gravidez
4.
Support Care Cancer ; 29(11): 6379-6387, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33884508

RESUMO

PURPOSE: Up to 40% of cancer patients treated with neurotoxic chemotherapies experience chemotherapy-induced peripheral neuropathy (CIPN). Currently, there is no gold standard assessment tool for CIPN and there is little information in the literature on patient preferences for such assessments. This study aims to address this gap by identifying the features of a CIPN assessment tool that cancer patients value. METHODS: An online discrete choice experiment (DCE) survey of neurotoxic chemotherapy-treated patients was implemented. Respondents completed 8 choice questions each. In each choice question, they chose between two hypothetical CIPN assessment tools, each described by six attributes: impact on quality of life; level of nerve damage detected; questionnaire length; physical tests involved; impact on clinic time; impact on care. RESULTS: The survey was completed by 117 respondents who had a range of cancers of which breast cancer was the most common. Respondents favoured an assessment tool that includes a physical test and that asks about impact on quality of life. Respondents were strongly opposed to clinicians, alone, deciding how the results of a CIPN assessment might influence their care especially their chemotherapy treatment. They were concerned about small changes in their CIPN, independent of clinical relevance. Respondents were willing to add half an hour to the usual clinic time to accommodate the CIPN assessment. CONCLUSION: The findings of this DCE will assist clinicians in choosing an assessment tool for CIPN that is satisfactory to both clinician and patient.


Assuntos
Antineoplásicos , Neoplasias da Mama , Doenças do Sistema Nervoso Periférico , Antineoplásicos/efeitos adversos , Neoplasias da Mama/tratamento farmacológico , Feminino , Humanos , Preferência do Paciente , Doenças do Sistema Nervoso Periférico/induzido quimicamente , Doenças do Sistema Nervoso Periférico/diagnóstico , Qualidade de Vida
5.
Aust N Z J Obstet Gynaecol ; 61(3): 448-453, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33599984

RESUMO

BACKGROUND: The Australian Contraceptive ChOice pRoject (ACCORd) aimed to assess the impact of a complex general practice intervention on the uptake of long-acting reversible contraceptives (LARC). AIMS: Using survey data from enrolled women, we aimed to compare the ongoing use and satisfaction of women who chose one of the hormonal LARC methods including the levonorgestrel intrauterine system (LNG-IUS) or levonorgestrel implant compared to the oral contraceptive pill (OCP). MATERIALS AND METHODS: We used the data from participants' baseline, six and 12-month surveys to identify new users of implants, LNG-IUS or OCP. We included demographic information, ongoing use of the contraceptive method, reasons for dissatisfaction and discontinuation and experience of side-effects. Proportions were compared using χ2 tests. RESULTS: Of the 740 women enrolled in ACCORd, 176 started using a hormonal LARC or OCP in the study's first six months with 76 using the IUS (43%), 60 the implant (34%) and 40 (23%) the OCP. Twelve-month continuation rates for the LNG-IUS, implant and OCP were 93, 83 and 65% respectively (P < 0.001). Satisfaction was highest among the LNG-IUS users; 86% were very/somewhat satisfied compared to 75% of implant users and 61% of OCP users (P < 0.001). Main reasons for method dissatisfaction were irregular bleeding and mood changes which were similar for all methods. CONCLUSIONS: This study provides further evidence that hormonal LARC methods have higher continuation and satisfaction rates compared to the OCP with similar side-effects. Since hormonal LARC methods have the highest contraceptive efficacy, these should be offered first-line to women.


Assuntos
Anticoncepcionais Femininos , Medicina Geral , Dispositivos Intrauterinos Medicados , Austrália , Anticoncepção , Feminino , Humanos , Levanogestrel , Satisfação Pessoal
6.
BMC Cancer ; 20(1): 963, 2020 Oct 06.
Artigo em Inglês | MEDLINE | ID: mdl-33023538

RESUMO

BACKGROUND: Healthy Living after Cancer (HLaC) was a national dissemination and implementation study of an evidence-based lifestyle intervention for cancer survivors. The program was imbedded into existing telephone cancer information and support services delivered by Australian state-based Cancer Councils (CC). We report here the reach, effectiveness, adoption, implementation, and maintenance of the program. METHODS: In this phase IV study (single-group, pre-post design) participants - survivors of any type of cancer, following treatment with curative intent - received up to 12 nurse/allied health professional-led telephone health coaching calls over 6 months. Intervention delivery was grounded in motivational interviewing, with emphasis on evidence-based behaviour change strategies. Using the RE-AIM evaluation framework, primary outcomes were reach, indicators of program adoption, implementation, costs and maintenance. Secondary (effectiveness) outcomes were participant-reported anthropometric, behavioural and psychosocial variables including: weight; physical activity; dietary intake; quality-of-life; treatment side-effects; distress; and fear of cancer recurrence and participant satisfaction. Changes were evaluated using linear mixed models, including terms for timepoint (0/6 months), strata (Cancer Council), and timepoint x strata. RESULTS: Four of 5 CCs approached participated in the study. In total, 1183 cancer survivors were referred (mostly via calls to the Cancer Council telephone information service). Of these, 90.4% were eligible and 88.7% (n = 791) of those eligible consented to participate. Retention rate was 63.4%. Participants were mostly female (88%), aged 57 years and were overweight (BMI = 28.8 ± 6.5 kg/m2). Improvements in all participant-reported outcomes (standardised effect sizes of 0.1 to 0.6) were observed (p < 0.001). The program delivery costs were on average AU$427 (US$296) per referred cancer survivor. CONCLUSIONS: This telephone-delivered lifestyle intervention, which was feasibly implemented by Cancer Councils, led to meaningful and statistically significant improvements in cancer survivors' health and quality-of-life at a relatively low cost. TRIAL REGISTRATION: Australian and New Zealand Clinical Trials Registry (ANZCTR) - ACTRN12615000882527 (registered on 24/08/2015).


Assuntos
Estilo de Vida Saudável/fisiologia , Neoplasias/reabilitação , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
7.
Am J Obstet Gynecol ; 222(4S): S921.e1-S921.e13, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-31837291

RESUMO

BACKGROUND: Long-active reversible contraceptives reduce unintended pregnancy and abortions, but uptake is low. Interventions to increase uptake in family medicine settings are untested. OBJECTIVE: The Australian Contraceptive ChOice pRoject, which was adapted from the successful US Contraceptive CHOICE study, aimed to evaluate whether a complex intervention in family medicine practices resulted in increased long-active reversible contraceptive uptake. STUDY DESIGN: This cluster randomized controlled trial was set in family practices in metropolitan Melbourne, Australia. From April 2016 to January 2017, we recruited 57 family physicians by mail invitation. Each family physician aimed to recruit at least 14 female patients. Eligible family physicians worked ≥3 sessions per week in computerized practices. Eligible women were English-speaking, sexually active, not pregnant, not planning a pregnancy in the next year, 16-45 years old, and interested in discussing contraception or in starting a new, reversible method. With the use of a randomization sequence with permuted blocks that were stratified by whether the family physician performed long-active reversible contraceptive insertion or not, family physicians were assigned randomly to a complex intervention that involved training to provide structured effectiveness-based contraceptive counselling and access to rapid referral to long-active reversible contraceptive insertion clinics. The 6-hour, online educational intervention was based on the US Contraceptive CHOICE Project and adapted for the Australian context. The control family physicians received neither the educational intervention nor access to the long-active reversible contraceptive rapid referral clinics and conducted their usual contraception counselling. We used the chi-square test, which was adjusted for clustering and stratification by whether the family physician inserted long-active reversible contraceptives, and binary regression models with generalized estimating equations and robust standard errors to compare, between the intervention and control groups, the proportions of women who had a long-active reversible contraceptive inserted. The primary outcome was the proportion of women with long-active reversible contraceptives that were inserted at 4 weeks. Secondary outcomes included women's choice of contraceptive method, quality of life, and long-active reversible contraceptive use at 6 and 12 months. Analyses were performed according to intention-to-treat. RESULTS: A total of 25 intervention and 32 control family physicians recruited 307 and 433 women, respectively (N=740). Within 4 weeks, 19.3% of women in the intervention group and 12.9% of women in the control group had long-active reversible contraceptive inserted (relative risk, 2.0; 95% confidence interval, 1.1-3.9; P=.033). By 6 months, this number had risen to 44.4% and 29.3%, respectively (relative risk, 1.6; 95% confidence interval, 1.2-2.17; P=.001); by 12 months, it had risen to 46.6% and 32.8%, respectively (relative risk, 1.5; 95% confidence interval, 1.2-2.0; P=.0015). The levonorgestrel intrauterine system was the most commonly chosen long-active reversible contraceptive by women in the intervention group at all time points. Differences between intervention and control groups in mean quality-of-life scores across all domains at 6 and 12 months were small. CONCLUSION: A complex intervention combination of family physician training on contraceptive effectiveness counselling and rapid access to long-active reversible contraceptive insertion clinics resulted in greater long-active reversible contraceptive uptake and has the potential to reduce unintended pregnancies.


Assuntos
Aconselhamento , Serviços de Planejamento Familiar/métodos , Contracepção Reversível de Longo Prazo/estatística & dados numéricos , Médicos de Família/educação , Adolescente , Adulto , Austrália , Contraceptivos Hormonais/administração & dosagem , Educação a Distância , Serviços de Planejamento Familiar/educação , Medicina de Família e Comunidade , Feminino , Humanos , Dispositivos Intrauterinos Medicados , Levanogestrel/administração & dosagem , Masculino , Pessoa de Meia-Idade , Encaminhamento e Consulta , Adulto Jovem
8.
Int J Technol Assess Health Care ; 36(5): 500-507, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32981532

RESUMO

OBJECTIVES: Ghana is in the process of formally introducing health technology assessment (HTA) for health decision making. Similar to other low- and middle-income countries, evidence suggests that the lack of data and human capacity is a major barrier to the conduct and use of HTA. This study assessed the current human and data capacity available in Ghana to undertake HTA. METHODS: As economic evaluation (EE) forms an integral part of HTA, a systematic review of EE studies undertaken in Ghana was conducted to identify the quality and number of studies available, methods and source of data used, and local persons involved. The literature search was undertaken in EMBASE (including MEDLINE), PUBMED, and Google Scholar. The quality of studies was evaluated using the Consolidated Health Economics Evaluation Reporting Standards. The number of local Ghanaians who contributed to authorship were used as a proxy for assessing human capacity for HTA. RESULTS: Thirty-one studies were included in the final review. Overall, studies were of good quality. Studies derived their effectiveness, resource utilization and cost data mainly from Ghana. The most common source of cost data was from the National Health Insurance Scheme pricing list for medicines and tariffs. Effectiveness data were mostly derived from either single study or intervention programs. Sixty out of 199 authors were Ghanaians (30 percent); these authors were mostly involved in data collection and study conceptualization. CONCLUSIONS: Human capacity for HTA in Ghana is limited. To introduce HTA successfully in Ghana, policy makers would need to develop more local capacity to undertake Ghanaian-specific HTA.


Assuntos
Análise Custo-Benefício , Avaliação da Tecnologia Biomédica/economia , Gana , Política de Saúde , Programas Nacionais de Saúde
9.
Eur J Cancer Care (Engl) ; 28(4): e13058, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31006930

RESUMO

The fear of cancer recurrence is cited as a motivator of women's preferences between routine monitoring and contralateral prophylactic mastectomy (CPM) as methods of managing ongoing breast cancer risk. We conducted a discrete choice experiment among a general community sample of women who completed 12 hypothetical choices between routine monitoring and CPM described by aspects of treatment efficacy, safety, cost and involvement in decision-making. Respondents also completed a modified cancer worry question to assess cancer concern. Approximately 57.5% of 464 women always chose one option, typically routine monitoring. The majority (71.5%) reported being concerned about cancer recurrence when completing choice tasks. Latent class analysis identified three groups: preferred routine monitoring; preferred CPM; and "traders" (willing to swap between options). Among traders, women were less likely to choose an option associated with higher risk of recurrence. Women were more likely to choose options associated with less-intrusive monitoring methods and where they were involved in decision-making. Women concerned about cancer recurrence were more likely to choose CPM over monitoring. This study shows that women's preferences about how to manage breast cancer recurrence risk reflect the importance of the associated health effects, experience of care and attitudes to cancer recurrence.


Assuntos
Neoplasias da Mama/psicologia , Mastectomia/psicologia , Preferência do Paciente/psicologia , Adolescente , Adulto , Idoso , Neoplasias da Mama/prevenção & controle , Comportamento de Escolha , Feminino , Humanos , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/prevenção & controle , Recidiva Local de Neoplasia/psicologia , Fatores de Risco , Adulto Jovem
10.
Aust N Z J Obstet Gynaecol ; 59(1): 21-35, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30311634

RESUMO

BACKGROUND: Relative to the oral contraceptive pill, uptake of long-acting reversible contraceptive methods (LARCs) in Australia continues to be lower than might be suggested by the evidence on their clinical and economic benefits. AIM: To undertake a critical appraisal of published economic evaluations of LARCs to assess the generalisability of their results to the Australian healthcare context. MATERIALS AND METHODS: A search of the literature was conducted to identify studies of economic evaluations of LARCs using the Medline, Embase and PubMed databases. The quality of the studies was evaluated using the Consolidated Health Economic Evaluation Reporting Standards (CHEERS) checklist. RESULTS: A total of 1009 citations were screened, from which 20 papers, typically reporting the cost per pregnancy avoided, were reviewed. The overall quality of the studies varied but was generally poor (average score of 62/100). To aid comparisons, results have been grouped under the headings IUS (all hormonal intrauterine systems), IUDs (all non-hormonal intrauterine devices), injectables (all contraceptive injections) and implants (all subdermal contraceptive implants). Overall, the results indicated that LARCs were more effective and less costly than oral contraceptives. CONCLUSIONS: Despite evidence that LARCs represent value for money, limitations in study quality and approaches must be taken into account when applying these results to Australia. Differences in healthcare settings aside, LARCs may also have benefits beyond their effect on pregnancy that might be captured in broader analyses, such as cost-benefit analyses using willingness to pay methods. These would capture benefits beyond health, which seem to be particularly relevant to contraception.


Assuntos
Anticoncepcionais Femininos/provisão & distribuição , Contracepção Reversível de Longo Prazo/estatística & dados numéricos , Austrália , Anticoncepcionais Femininos/economia , Análise Custo-Benefício , Feminino , Humanos , Contracepção Reversível de Longo Prazo/economia , Gravidez
11.
Health Econ ; 26(1): 54-73, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-26498432

RESUMO

Decisions about prescribed contraception are typically the result of a consultation between a woman and her doctor. In order to better understand contraceptive choice within this environment, stated preference methods are utilized to ask doctors about what contraceptive options they would discuss with different types of women. The role of doctors is to confine their discussion to a subset of products that best match their patient. This subset of options forms the consideration set from which the ultimate recommendation is made. Given the existence of consideration sets we address the issue of how to model appropriately the ultimate recommendations. The estimated models enable us to characterize doctor recommendations and how they vary with patient attributes and to highlight where recommendations are clear and when they are uncertain. The results also indicate systematic variation in recommendations across different types of doctors, and in particular we observe that some doctors are reluctant to embrace new products and instead recommend those that are more familiar. Such effects are one possible explanation for the relatively low uptake of more cost effective longer acting reversible contraceptives and indicate that further education and training of doctors may be warranted. Copyright © 2015 John Wiley & Sons, Ltd.


Assuntos
Anticoncepção/estatística & dados numéricos , Anticoncepcionais/uso terapêutico , Médicos , Encaminhamento e Consulta , Adolescente , Adulto , Comportamento de Escolha , Feminino , Humanos , Saúde Reprodutiva
12.
BMC Palliat Care ; 17(1): 1, 2017 Jun 21.
Artigo em Inglês | MEDLINE | ID: mdl-28637450

RESUMO

BACKGROUND: There is limited population-level research on end-of-life care in Australia that considers health care use and costs across hospital and community sectors. The aim of this study was to quantify health care use and costs in the last 6 months of life in a cohort of elderly Australian decedents and to examine the factors associated with end-of-life resource use and costs. METHODS: A retrospective cohort study using routinely collected health data from Australian Government Department of Veterans' Affairs clients. The study included two cohorts of elderly Australians who died between 2005 and 2009; one cohort with a recorded cancer diagnosis and a comparison cohort with no evidence of a cancer history. We examined hospitalisations, emergency department (ED) visits, prescription drugs, clinician visits, pathology, and procedures and associated costs in the last 6 months of life. We used negative binominal regression to explore factors associated with health service use and costs. RESULTS: The cancer cohort had significantly higher rates of health service use and 27% higher total health care costs than the comparison cohort; in both cohorts, costs were driven primarily by hospitalisations. Older age was associated with lower costs and those who died in residential aged care incurred half the costs of those who died in hospital. CONCLUSIONS: The results suggest differences in end-of-life care pathways dependent on patient factors, with younger, community-dwelling patients and those with a history of cancer incurring significantly greater costs. There is a need to examine whether the investment in end-of-life care meets patient and societal needs.


Assuntos
Atenção à Saúde/economia , Atenção à Saúde/estatística & dados numéricos , Neoplasias/terapia , Assistência Terminal/economia , Idoso , Idoso de 80 Anos ou mais , Austrália , Estudos de Coortes , Análise Custo-Benefício , Feminino , Custos de Cuidados de Saúde , Humanos , Masculino , Neoplasias/economia , Estudos Retrospectivos , Assistência Terminal/métodos , Assistência Terminal/normas
13.
Br J Cancer ; 114(11): 1293-302, 2016 05 24.
Artigo em Inglês | MEDLINE | ID: mdl-27115468

RESUMO

BACKGROUND: There is growing interest in end-of-life care in cancer patients. We aim to characterise health service use and costs in decedents with cancer history and examine factors associated with resource use and costs at life's end. METHODS: We used routinely collected claims data to quantify health service use and associated costs in two cohorts of elderly Australians diagnosed with cancer: one cohort died from cancer (n=4271) and the other from non-cancer causes (n=3072). We used negative binomial regression to examine the factors associated with these outcomes. RESULTS: Those who died from cancer had significantly higher rates of hospitalisations and medicine use but lower rates of emergency department use than those who died from non-cancer causes. Overall health care costs were significantly higher in those who died from cancer than those dying from other causes; and 40% of costs were expended in the last month of life. CONCLUSIONS: We analysed health services use and costs from a payer perspective, and highlight important differences in patterns of care by cause of death in patients with a cancer history. In particular, there are growing numbers of highly complex patients approaching the end of life and the heterogeneity of these populations may present challenges for effective health service delivery.


Assuntos
Custos de Cuidados de Saúde/estatística & dados numéricos , Serviços de Saúde/economia , Neoplasias/economia , Assistência Terminal/economia , Idoso , Idoso de 80 Anos ou mais , Austrália , Causas de Morte , Estudos de Coortes , Atenção à Saúde , Custos de Medicamentos/estatística & dados numéricos , Serviço Hospitalar de Emergência/economia , Serviço Hospitalar de Emergência/estatística & dados numéricos , Feminino , Serviços de Saúde/estatística & dados numéricos , Cuidados Paliativos na Terminalidade da Vida/economia , Hospitalização/economia , Hospitalização/estatística & dados numéricos , Humanos , Masculino , Neoplasias/mortalidade , Neoplasias/terapia , Visita a Consultório Médico/economia , Visita a Consultório Médico/estatística & dados numéricos
14.
BMC Cancer ; 16: 183, 2016 Mar 04.
Artigo em Inglês | MEDLINE | ID: mdl-26944262

RESUMO

BACKGROUND: Stereotactic ablative body radiotherapy (SABR) is emerging as a non-invasive method for precision irradiation of lung tumours. However, the ideal dose/fractionation schedule is not yet known. The primary purpose of this study is to assess safety and efficacy profile of single and multi-fraction SABR in the context of pulmonary oligometastases. METHODS/DESIGN: The TROG 13.01/ALTG 13.001 clinical trial is a multicentre unblinded randomised phase II study. Eligible patients have up to three metastases to the lung from any non-haematological malignancy, each < 5 cm in size, non-central targets, and have all primary and extrathoracic disease controlled with local therapies. Patients are randomised 1:1 to a single fraction of 28Gy versus 48Gy in four fractions of SABR. The primary objective is to assess the safety of each treatment arm, with secondary objectives including assessment of quality of life, local efficacy, resource use and costs, overall and disease free survival and time to distant failure. Outcomes will be stratified by number of metastases and origin of the primary disease (colorectal versus non-colorectal primary). Planned substudies include an assessment of the impact of online e-Learning platforms for lung SABR and assessment of the effect of SABR fractionation on the immune responses. A total of 84 patients are required to complete the study. DISCUSSION: Fractionation schedules have not yet been investigated in a randomised fashion in the setting of oligometastatic disease. Assuming the likelihood of similar clinical efficacy in both arms, the present study design allows for exploration of the hypothesis that cost implications of managing potentially increased toxicities from single fraction SABR will be outweighed by costs associated with delivering multiple-fraction SABR. TRIALS REGISTRATION: ACTRN12613001157763 , registered 17th October 2013.


Assuntos
Fracionamento da Dose de Radiação , Neoplasias Pulmonares/secundário , Neoplasias Pulmonares/terapia , Radiocirurgia , Radioterapia/métodos , Custos de Cuidados de Saúde , Recursos em Saúde , Humanos , Neoplasias Pulmonares/diagnóstico , Qualidade de Vida , Radiocirurgia/economia , Radiocirurgia/métodos , Radioterapia/economia , Tomografia Computadorizada por Raios X , Carga Tumoral
15.
Health Expect ; 19(1): 26-38, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25565251

RESUMO

BACKGROUND: Understanding the important factors for choosing a general practitioner (GP) can inform the provision of consumer information and contribute to the design of primary care services. OBJECTIVE: To identify the factors considered important when choosing a GP and to explore subgroup differences. DESIGN: An online survey asked about the respondent's experience of GP care and included 36 questions on characteristics important to the choice of GP. PARTICIPANTS: An Australian population sample (n = 2481) of adults aged 16 or more. METHODS: Principal components analysis identified dimensions for the creation of summated scales, and regression analysis was used to identify patient characteristics associated with each scale. RESULTS: The 36 questions were combined into five scales (score range 1-5) labelled: care quality, types of services, availability, cost and practice characteristics. Care quality was the most important factor (mean = 4.4, SD = 0.6) which included questions about technical care, interpersonal care and continuity. Cost (including financial and time cost) was also important (mean = 4.1, SD = 0.6). The least important factor was types of services (mean = 3.3, SD = 0.9), which covered the range of different services provided by or co-located with the practice. Frequent GP users and females had higher scores across all 5 scales, while the importance of care quality increased with age. CONCLUSIONS: When choosing a GP, information about the quality of care would be most useful to consumers. Respondents varied in the importance given to some factors including types of services, suggesting the need for a range of alternative primary care services.


Assuntos
Medicina Geral/organização & administração , Preferência do Paciente , Qualidade da Assistência à Saúde/organização & administração , Adolescente , Adulto , Idoso , Agendamento de Consultas , Austrália , Honorários Médicos/estatística & dados numéricos , Feminino , Medicina Geral/economia , Humanos , Masculino , Pessoa de Meia-Idade , Fatores Socioeconômicos , Fatores de Tempo , Adulto Jovem
16.
Heart Lung Circ ; 25(3): 265-74, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26669813

RESUMO

BACKGROUND: To evaluate the long-term cost-effectiveness of two home-based cardiac rehabilitation (CR) interventions (Healthy Weight (HW) and Physical Activity (PA)) for patients with cardiovascular disease (CVD), who had been referred to cardiac rehabilitation (CR) but had not attended. The interventions consisted of pedometer-based telephone coaching sessions on weight, nutrition and physical activity (HW group) or physical activity only (PA group) and were compared to a control group who received information brochures about physical activity. METHODS: A cost-effectiveness analysis was conducted using data from two randomised controlled trials. One trial compared HW to PA (PANACHE study), and the second compared PA to usual care. A Markov model was developed which used one risk factor, body mass index (BMI) to determine the CVD risk level and mortality. Patient-level data from the trials were used to determine the transitions to CVD states and healthcare related costs. The model was run for separate cohorts of males and females. Univariate and probabilistic sensitivity analysis were conducted to test the robustness of the results. RESULTS: Given a willingness-to-pay threshold of $50,000/QALY, in the long run, both the HW and PA interventions are cost-effective compared with usual care. While the HW intervention is more effective, it also costs more than both the PA intervention and the control group due to higher intervention costs. However, the HW intervention is still cost-effective relative to the PA intervention for both men and women. Sensitivity analysis suggests that the results are robust. CONCLUSION: The results of this paper provide evidence of the long-term cost-effectiveness of home-based CR interventions for patients who are referred to CR but do not attend. Both the HW and PA interventions can be recommended as cost-effective home-based CR programs, especially for people lacking access to hospital services or who are unable to participate in traditional CR programs.


Assuntos
Peso Corporal , Reabilitação Cardíaca , Doenças Cardiovasculares/economia , Estilo de Vida , Modelos Econômicos , Atividade Motora , Doenças Cardiovasculares/mortalidade , Custos e Análise de Custo , Feminino , Humanos , Masculino
17.
BMC Cancer ; 15: 992, 2015 Dec 21.
Artigo em Inglês | MEDLINE | ID: mdl-26690258

RESUMO

BACKGROUND: Given evidence shows physical activity, a healthful diet and weight management can improve cancer outcomes and reduce chronic disease risk, the major cancer organisations and health authorities have endorsed related guidelines for cancer survivors. Despite these, and a growing evidence base on effective lifestyle interventions, there is limited uptake into survivorship care. METHODS/DESIGN: Healthy Living after Cancer (HLaC) is a national dissemination and implementation study that will evaluate the integration of an evidence-based lifestyle intervention for cancer survivors into an existing telephone cancer information and support service delivered by Australian state-based Cancer Councils. Eligible participants (adults having completed cancer treatment with curative intent) will receive 12 health coaching calls over 6 months from Cancer Council nurses/allied health professionals targeting national guidelines for physical activity, healthy eating and weight control. Using the RE-AIM evaluation framework, primary outcomes are service-level indicators of program reach, adoption, implementation/costs and maintenance, with secondary (effectiveness) outcomes of patient-reported anthropometric, behavioural and psychosocial variables collected at pre- and post-program completion. The total participant accrual target across four participating Cancer Councils is 900 over 3 years. DISCUSSION: The national scope of the project and broad inclusion of cancer survivors, alongside evaluation of service-level indicators, associated costs and patient-reported outcomes, will provide the necessary practice-based evidence needed to inform future allocation of resources to support healthy living among cancer survivors. TRIAL REGISTRATION: Australian and New Zealand Clinical Trials Registry (ANZCTR)--ACTRN12615000882527 (registered on 24/08/2015).


Assuntos
Promoção da Saúde/métodos , Estilo de Vida , Neoplasias/reabilitação , Adulto , Idoso , Austrália , Análise Custo-Benefício , Dieta , Exercício Físico , Feminino , Promoção da Saúde/economia , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/psicologia , Projetos de Pesquisa , Apoio Social , Inquéritos e Questionários , Sobreviventes , Telefone , Adulto Jovem
18.
Med J Aust ; 202(2): 87-90, 2015 Feb 02.
Artigo em Inglês | MEDLINE | ID: mdl-25627740

RESUMO

OBJECTIVE: To identify factors affecting bulk-billing by general practitioners in Australia. DESIGN, PARTICIPANTS AND SETTING: A community-based survey was administered to Australians aged 16 years or older in July 2013 via an online panel. Survey questions focused on patient characteristics, visit characteristics, practice characteristics. MAIN OUTCOME MEASURES: Factors associated with GP bulk-billing. RESULTS: 2477 respondents completed the survey, of whom 2064 (83.33%) reported that the practice that they went to for their most recent GP visit bulk billed some or all patients. Overall, 1763 respondents (71.17%) reported that their most recent GP visit was bulk billed. Taking into account the duration of visits and the corresponding Medicare Benefits Schedule rebate, the mean out-of-pocket cost for those who were not bulk billed was $34.09. RESULTS of a multivariate logistic regression analysis suggest that the odds of being bulk billed was negatively associated with larger practice size, respondents having had an appointment for their visit, higher household income and inner or outer regional area of residence. It was positively associated with the presence of a chronic disease, being a concession card holder and having private health insurance. There was no association between bulk-billing and duration of GP visit, age or sex. CONCLUSIONS: Our results indicate that there are associations between patient characteristics and bulk-billing, and between general practice characteristics and bulk-billing. This suggests that caution is needed when considering changes to GP fees and Medicare rebates because of the many possible paths by which patients' access to services could be affected. Our results do not support the view that bulk-billing is associated with shorter consultation times.


Assuntos
Medicina Geral/organização & administração , Programas Nacionais de Saúde/organização & administração , Crédito e Cobrança de Pacientes/estatística & dados numéricos , Adolescente , Adulto , Fatores Etários , Idoso , Austrália/epidemiologia , Financiamento de Capital/economia , Financiamento de Capital/estatística & dados numéricos , Honorários e Preços/estatística & dados numéricos , Feminino , Medicina Geral/economia , Medicina Geral/estatística & dados numéricos , Pesquisas sobre Atenção à Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Programas Nacionais de Saúde/economia , Programas Nacionais de Saúde/estatística & dados numéricos , Crédito e Cobrança de Pacientes/métodos , Crédito e Cobrança de Pacientes/organização & administração , Fatores Sexuais , Adulto Jovem
19.
BMC Health Serv Res ; 15: 12, 2015 Jan 22.
Artigo em Inglês | MEDLINE | ID: mdl-25609196

RESUMO

BACKGROUND: The increased prevalence of diabetes and its significant impact on use of health care services, particularly hospitals, is a concern for health planners. This paper explores the risk factors for all-cause hospitalisation and the excess risk due to diabetes in a large sample of older Australians. METHODS: The study population was 263,482 participants in the 45 and Up Study. The data assessed were linked records of hospital admissions in the 12 months following completion of a baseline questionnaire. All cause and ambulatory care sensitive admission rates and length of stay were examined. The associations between demographic characteristics, socioeconomic status, lifestyle factors, and health and wellbeing and risk of hospitalisation were explored using zero inflated Poisson (ZIP) regression models adjusting for age and gender. The ratios of adjusted relative rates and 95% confidence intervals were calculated to determine the excess risk due to diabetes. RESULTS: Prevalence of diabetes was 9.0% (n = 23,779). Age adjusted admission rates for all-cause hospitalisation were 631.3 and 454.8 per 1,000 participant years and the mean length of stay was 8.2 and 7.1 days respectively for participants with and without diabetes. In people with and without diabetes, the risk of hospitalisation was associated with age, gender, household income, smoking, BMI, physical activity, and health and wellbeing. However, the increased risk of hospitalisation was attenuated for participants with diabetes who were older, obese, or had hypertension or hyperlipidaemia and enhanced for those participants with diabetes who were male, on low income, current smokers or who had anxiety or depression. CONCLUSIONS: This study is one of the few studies published to explore the impact of diabetes on hospitalisation in a large non-clinical population, the 45 and Up Study. The attenuation of risk associated with some factors is likely to be due to correlation between diabetes and factors such as age and obesity. The increased risk in association with other factors such as gender and low income in participants with diabetes is likely to be due to their synergistic influence on health status and the way services are accessed.


Assuntos
Diabetes Mellitus Tipo 1/complicações , Diabetes Mellitus Tipo 2/complicações , Hospitalização/estatística & dados numéricos , Idoso , Depressão/epidemiologia , Diabetes Mellitus Tipo 1/epidemiologia , Diabetes Mellitus Tipo 2/epidemiologia , Métodos Epidemiológicos , Feminino , Nível de Saúde , Humanos , Tempo de Internação/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , New South Wales/epidemiologia , Obesidade/epidemiologia , Pobreza/estatística & dados numéricos , Fumar/epidemiologia , Fatores Socioeconômicos
20.
JAMA ; 314(13): 1376-85, 2015 Oct 06.
Artigo em Inglês | MEDLINE | ID: mdl-26441182

RESUMO

IMPORTANCE: The benefits of rehabilitation after immobilization for ankle fracture are unclear. OBJECTIVES: To determine the effectiveness of a supervised exercise program and advice (rehabilitation) compared with advice alone and to determine if effects are moderated by fracture severity or age and sex. DESIGN, SETTING, AND PARTICIPANTS: The EXACT trial was a pragmatic, randomized clinical trial conducted from December 2010 to June 2014. Patients with isolated ankle fracture presenting to fracture clinics in 7 Australian hospitals were randomized on the day of removal of immobilization. Of 571 eligible patients, 357 chose not to participate and 214 were allocated to rehabilitation (n = 106) or advice alone (n = 108), with 194 (91%) followed up at 1 month, 173 (81%) at 3 months, and 170 (79%) at 6 months. There were no withdrawals attributed to adverse effects. Recruitment terminated early on December 31, 2013 (planned enrollment, 342; actual, 214), because funding was exhausted. INTERVENTIONS: Supervised exercise program and advice about self-management (rehabilitation) (individually tailored, prescribed, monitored, and progressed) or advice alone, both delivered by a physical therapist. MAIN OUTCOMES AND MEASURES: Primary outcomes were activity limitation assessed using the Lower Extremity Functional Scale (score range, 0-80; higher scores indicate better activity), and quality of life assessed using the Assessment of Quality of Life (score range, 0-1; higher scores indicate better quality of life), measured at baseline and at 1, 3 (primary time point), and 6 months. RESULTS: Mean activity limitation and quality of life at baseline were 30.1 (SD, 12.5) and 0.51 (SD, 0.24), respectively, for advice and 30.2 (SD, 13.2) and 0.54 (SD, 0.24) for rehabilitation, increasing to 64.3 (SD, 13.5) and 0.85 (SD, 0.17) for advice vs 64.3 (SD, 15.1) and 0.85 (SD, 0.20) for rehabilitation at 3 months. Rehabilitation was not more effective than advice for activity limitation (mean effect at 3 months, 0.4 [95% CI, -3.3 to 4.1]) or quality of life (-0.01 [95% CI, -0.06 to 0.04]). Treatment effects were not moderated by fracture severity or age and sex. CONCLUSIONS AND RELEVANCE: A supervised exercise program and advice did not confer additional benefits in activity limitation or quality of life compared with advice alone for patients with isolated and uncomplicated ankle fracture. These findings do not support the routine use of supervised exercise programs after removal of immobilization for patients with isolated and uncomplicated ankle fracture. TRIAL REGISTRATION: anzctr.org.au Identifier: ACTRN12610000979055.


Assuntos
Fraturas do Tornozelo/reabilitação , Terapia por Exercício , Fixação de Fratura , Autocuidado , Adulto , Fatores Etários , Análise Custo-Benefício , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Educação de Pacientes como Assunto , Qualidade de Vida , Reabilitação/economia , Índice de Gravidade de Doença , Fatores Sexuais , Resultado do Tratamento
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