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1.
Prev Med Rep ; 40: 102657, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38444564

RESUMO

Objectives: The health of people prior to pregnancy impacts pregnancy outcomes and childhood health, making the preconception period an important time to optimise health behaviours. Low awareness of the importance of this issue is a recognised barrier to achieving good preconception health. Public health messaging can help to address this barrier. Methods: A discrete choice experiment to assess the preferences of people of reproductive age for a health promotion advertisement for preconception health was conducted. Attributes of the advertisement image, title, additional text content and positioning, and the location of advertisement were assessed by fitting a mixed logit model to the choices made. Results: Three hundred and thirty-four responses were obtained, from people of reproductive age, both planning and not planning a pregnancy, in Australia. Participants placed most importance on the image, and the location in which they saw the advertisement. An image of adult and baby hands was preferred to adult hands only, and healthcare settings were preferred to more general media locations such as advertising online or on public transport. Preference was also given to the advertisement title of "Healthy you, Healthy baby", closely followed by "Are you ready for pregnancy?". The location and content of additional text did not significantly impact engagement with the advertisement. Conclusion: The image and title on the advertisement, and the locations in which they are placed were the most significant features to impact engagement with a health promotion advertisement for preconception health. This can inform health promotion efforts for preconception health.

2.
Immunol Lett ; 258: 45-50, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-37207916

RESUMO

The differentiation of B cells into antibody-secreting plasma cells is a complex process that involves extensive changes in morphology, lifespan, and cellular metabolism to support the high rates of antibody production. During the final stage of differentiation, B cells undergo significant expansion of their endoplasmic reticulum and mitochondria, which induces cellular stress and may lead to cell death in absence of effective inhibition of the apoptotic pathway. These changes are tightly regulated at transcriptional and epigenetic levels, as well as at post-translational level, with protein modifications playing a critical role in the process of cellular modification and adaptation. Our recent research has highlighted the pivotal role of the serine/threonine kinase PIM2 in B cell differentiation, from commitment stage to plasmablast and maintenance of expression in mature plasma cells. PIM2 has been shown to promote cell cycle progression during the final stage of differentiation and to inhibit Caspase 3 activation, raising the threshold for apoptosis. In this review, we examine the key molecular mechanisms controlled by PIM2 that contribute to plasma cell development and maintenance.


Assuntos
Plasmócitos , Proteínas Proto-Oncogênicas , Proteínas Proto-Oncogênicas/genética , Proteínas Proto-Oncogênicas/metabolismo , Proteínas Serina-Treonina Quinases/metabolismo , Linfócitos B/metabolismo , Diferenciação Celular , Apoptose
3.
Aust J Prim Health ; 29(3): 222-228, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37121607

RESUMO

BACKGROUND: Despite recommendations, long-acting reversible contraceptives (LARC) are not always offered as first-line contraceptives in general practice. This study aimed to describe pathways used by women for insertion of LARC. METHODS: This is a secondary analysis of data from the Australian Contraceptives ChOice pRoject (ACCORd), a cluster randomised controlled trial set in 57 general practices in Melbourne, Australia. We investigated whether an educational intervention for general practitioners (GPs) and a rapid LARC insertion clinic increased LARC uptake. The main outcome measures were the type of health service, location/provider of intrauterine device (IUD) insertion; time to insertion; and distance travelled for IUD insertion. RESULTS: During ACCORd, 149 women had LARC insertion. IUD training was reported by 37% of GPs, but only 12% inserted them. In contrast, 70% of GPs inserted implants and 95% of women accessed implant insertion through their own general practice. LARC rapid referral clinics were used by 52% (13/25) of intervention GPs, where 71% (41/56) of IUD insertions occurred in these clinics (but no implants). There was no difference in the mean time from referral to IUD insertion between women attending intervention and control GPs (mean days 37.6vs 32.7; P =0.61). GPs (including IUD inserters) used a variety of referral pathways for IUD insertion, including public and private clinics, and other GPs. Women travelled up to 90km for IUD insertion. CONCLUSIONS: Although implant insertion has been integrated into general practice, few GPs insert IUDs. Where the option exists for GPs to refer to a LARC rapid referral clinic, the majority of IUD insertions will take place there. Establishing a network of such clinics Australia wide may both increase IUD uptake and address the extensive need for GP training in IUD insertion.


Assuntos
Medicina Geral , Dispositivos Intrauterinos , Humanos , Feminino , Austrália , Medicina de Família e Comunidade , Anticoncepcionais
4.
Aust J Prim Health ; 29(3): 252-259, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-36473159

RESUMO

BACKGROUND: Almost onein four women in Australia experience an unintended pregnancy during their lifetime; of these, approximately 30% currently end in abortion. Although early medical abortion (EMA) up to 9weeks gestation is becoming more widely available in Australia, it is still not commonly offered in primary care. The aim of this study was to investigate the barriers and facilitators to the provision of EMA in primary care. METHODS: A sample of 150 general practitioners (GPs) and 150 registered nurses (RNs) working in Australia responded to a best-worst scaling survey designed to answer the following question: what are the most important facilitators and barriers to the provision of EMA in primary care? RESULTS: GPs believe that the lack of clinical guidelines, the amount of information provision and counselling required, and the fact that women who are not their patients may not return for follow-up are the most important barriers. For RNs, these three barriers, together with the stigma of being known as being involved in the provision of EMA, are the most important barriers. The formation of a community of practice to support the provision of EMA was identified by both professions as the most important facilitator. CONCLUSIONS: Having access to a community of practice, enhanced training and reducing stigma will encourage the provision of EMA. Although clinical guidelines are available, they need to be effectively disseminated, implemented and endorsed by peak bodies. Primary care practices should consider using task sharingand developing patient resources to facilitate the provision of information and counselling.


Assuntos
Aborto Induzido , Clínicos Gerais , Gravidez , Humanos , Feminino , Atitude do Pessoal de Saúde , Aborto Induzido/métodos , Austrália , Atenção Primária à Saúde
5.
Int J Radiat Oncol Biol Phys ; 114(5): 968-976, 2022 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-36395809

RESUMO

PURPOSE: The use of stereotactic ablative body radiation therapy (SABR) in advanced cancer care is increasing, yet the cost-effectiveness of single-fraction (SF) versus multifraction (MF) SABR in pulmonary oligometastases is unknown. METHODS: A prespecified cost-effectiveness analysis was conducted of the Trans Tasman Radiation Oncology Group 13.01 - SAFRON II - randomized trial comparing SF with MF SABR in 87 patients with 133 pulmonary oligometastases. A partitioned survival model assessed costs and quality-adjusted life-years (QALY) over the within-trial period (4 years) and longer-term (10 years). Costs reflected a societal perspective, expressed in Australian dollars (A$) using 2020 prices and were estimated using patient level data on health care utilization for radiation therapy (including patient time), post-radiation systemic therapy and treatment of adverse effects. Quality of life was assessed using the EuroQoL EQ-5D-5L. The incremental cost-effectiveness ratio (ICER) was expressed as the cost per QALY gained for SF versus MF SABR, with uncertainty assessed using deterministic and probabilistic sensitivity analyses. RESULTS: SF cost less than MF for initial therapy (difference of A$1194/patient). Mean time to initiation of systemic drug therapy did not differ between arms (P = .94). Numerical differences in survival favoring SF resulted in greater overall health care use for the within-trial period. The within-trial ICER was A$15,821/QALY and A$23,265/QALY over the longer term. Results were most sensitive to the cost of postprogression therapies and utility values. The sensitivity analysis indicated that SF SABR has a 97% probability of being cost-effective at a willingness-to-pay of A$50,000/QALY. CONCLUSIONS: SF has lower initial costs and is highly likely to be cost-effective. Time to initiation of systemic therapy associated with disease progression is highly patient relevant and is a major driver of cost-effectiveness. Comparisons for SF SABR with nonradiation therapy approaches to the treatment of pulmonary oligometastases warrant further investigation.


Assuntos
Qualidade de Vida , Radiocirurgia , Humanos , Austrália , Análise Custo-Benefício , Anos de Vida Ajustados por Qualidade de Vida
6.
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
7.
Aust N Z J Public Health ; 46(4): 540-544, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35557481

RESUMO

OBJECTIVE: Most Australian women access contraception through general practitioners (GPs) but choose oral methods rather than long-acting reversible contraceptives (LARCS). The Australian Contraceptive ChOice pRoject (ACCORd) successfully tested a complex intervention for LARC uptake. We aimed to explore the critical elements of this intervention to increase LARC uptake. DESIGN: ACCORd was a cluster randomised control trial conducted in 57 GP clinics in Melbourne, Australia. To explore intervention impact, fidelity checks (n=21 GPs) and interviews with 37 GPs and 40 patients were undertaken 12 months after initial consultations. Data were inductively coded, thematically analysed and mapped to Normalization Process Theory constructs. RESULTS: Doctors understood the importance of effectiveness-based contraceptive counselling (EBCC). GPs demonstrated cognitive engagement in the promotion of LARC and some appreciated the rapid referral pathways. GPs and women valued the effectiveness approach. GPs held varying views about having a rapid referral pathway, with many already having established pathways in place. Some GPs viewed intrauterine device insertion costs or insertion training as barriers to ongoing practice. Most GPs and women saw the ACCORD model as effective and sustainable. CONCLUSIONS: GP training in EBCC and the use of rapid referral pathways were critical features of an effective sustainable model for successful uptake of LARCs in primary care. IMPLICATIONS FOR PUBLIC HEALTH: Improving Australian women's access to and use of LARCs is sustainable with EBCC training and support for general practitioners.


Assuntos
Anticoncepcionais Femininos , Medicina Geral , Clínicos Gerais , Contracepção Reversível de Longo Prazo , Austrália , Anticoncepção , Feminino , Clínicos Gerais/psicologia , Humanos
8.
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
9.
Front Immunol ; 12: 744573, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34925321

RESUMO

B cell affinity maturation occurs in the germinal center (GC). Light-zone (LZ) GC B cells (BGC-cells) interact with follicular dendritic cells (FDCs) and compete for the limited, sequential help from T follicular helper cells needed to escape from apoptosis and complete their differentiation. The highest-affinity LZ BGC-cells enter the cell cycle and differentiate into PCs, following a dramatic epigenetic reorganization that induces transcriptome changes in general and the expression of the PRDM1 gene in particular. Human PC precursors are characterized by the loss of IL-4/STAT6 signaling and the absence of CD23 expression. Here, we studied the fate of human LZ BGC-cells as a function of their CD23 expression. We first showed that CD23 expression was restricted to the GC LZ, where it was primarily expressed by FDCs; less than 10% of tonsil LZ BGC-cells were positive. Sorted LZ BGC-cells left in culture and stimulated upregulated CD23 expression but were unable to differentiate into PCs - in contrast to cells that did not upregulate CD23 expression. An in-depth analysis (including single-cell gene expression) showed that stimulated CD23-negative LZ BGC-cells differentiated into plasmablasts and time course of gene expression changes delineates the transcriptional program that sustains PC differentiation. In particular, we identified a B cell proliferation signature supported by a transient MYC gene expression. Overall, the CD23 marker might be of value in answering questions about the differentiation of normal BGC-cells and allowed us to propose an instructive LZ BGC-cells maturation and fate model.


Assuntos
Linfócitos B/imunologia , Diferenciação Celular/imunologia , Centro Germinativo/imunologia , Ativação Linfocitária/imunologia , Plasmócitos/imunologia , Linfócitos B/citologia , Linfócitos B/metabolismo , Centro Germinativo/citologia , Humanos , Plasmócitos/citologia , Receptores de IgE/metabolismo , Transcrição Gênica
10.
Aust Health Rev ; 45(6): 728-734, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34903325

RESUMO

Objective The aim of this study was to evaluate the cost-effectiveness of the Australian Contraceptive ChOice pRoject (ACCORd) intervention. Methods An economic evaluation compared the costs and outcomes of the ACCORd intervention with usual care (UC). Data from the ACCORd trial were used to estimate costs and efficacy in terms of contraceptive uptake and quality of life. Rates of contraceptive failure and pregnancy were sourced from the literature. Using a Markov model, within-trial results were extrapolated over 10 years and subjected to univariate sensitivity analyses. Model outputs were expressed as the cost per quality-adjusted life years (QALY) gained and cost per unintended pregnancy resulting in birth (UPB) avoided. Results Over 10 years, compared with UC, initiating contraception through the ACCORd intervention resulted in 0.02 fewer UPB and higher total costs (A$2505 vs A$1179) per woman. The incremental cost-effectiveness of the ACCORd intervention versus UC was A$1172 per QALY gained and A$7385 per UPB averted. If the start-up cost of the ACCORd intervention was removed, the incremental cost-effectiveness ratio was A$81 per QALY gained and A$511 per UPB averted. The results were most sensitive to the probability of contraceptive failure, the probability of pregnancy-related healthcare service utilisation or the inclusion of the costs of implementing the ACCORd intervention. Conclusions From a health system perspective, if implemented appropriately in terms of uptake and reach, and assuming an implicit willingness to pay threshold of A$50 000 the ACCORd intervention is cost-effective. What is known about the topic? The uptake of long-active reversible contraceptives (LARC) in Australia is low. The ACCORd trial assessed the efficacy of providing structured training to general practitioners (GPs) on LARC counselling, together with access to rapid referral to insertion clinics. What does this paper add? This study is the first to assess the cost-effectiveness of a complex intervention in the general practice setting aimed at increasing the uptake of LARC in Australia. What are the implications for practitioners? The results show that implementing a complex intervention in general practice involving GP education and the availability of rapid referral to LARC insertion clinics is a cost-effective approach to increase LARC use and its attending efficacy. If the majority of Australian GPs were able to deliver effectiveness-based contraceptive counselling and either insert LARC or use a rapid referral process to a LARC insertion clinic, the additional cost associated with the purchase of LARC products and their insertion would be offset by reductions to health system costs as a result of fewer UPB and abortions. Moreover, the benefits to women's physical and psychological health of avoiding such events is substantial.


Assuntos
Anticoncepcionais , Medicina Geral , Austrália , Análise Custo-Benefício , Feminino , Humanos , Gravidez , Qualidade de Vida
11.
Value Health Reg Issues ; 25: 196-205, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34428695

RESUMO

OBJECTIVES: Most breast cancer cases in Ghana occur in premenopausal and perimenopausal (PPM) women. This study evaluated the cost-effectiveness of tamoxifen compared with no tamoxifen for the adjuvant treatment of hormone receptor-positive (HR+) early breast cancer (EBC) among PPM Ghanaian women. METHODS: A Markov model was constructed to synthesize data on the effectiveness, costs, and health benefits of tamoxifen. Effectiveness and utility data were sourced from a literature review. Resource use and healthcare costs were estimated from Ghanaian sources. The evaluation was conducted in 2017 from the perspective of the health system over a 15-year time horizon. The financial impact of funding tamoxifen on Ghana's National Health Insurance Scheme (NHIS) was also estimated. RESULTS: Adjuvant tamoxifen treatment for women with HR+ EBC was more effective and more costly than no-tamoxifen therapy. The incremental benefit and costs were estimated to be 1.38 quality-adjusted life-years gained and Ghana cedis (GHC) 2338 ($520), respectively. The incremental cost-effectiveness ratio was estimated to be GHC 1694 ($376). The model was sensitive to the cost of tamoxifen and utility values. The cost of tamoxifen for the treatment of HR+ EBC represents less than 0.01% GHC 96 960 ($21 547) of the current NHIS total claims expenditure. CONCLUSIONS: Tamoxifen provides additional benefits to PPM Ghanaian women with HR+ EBC and is cost-effective compared with no tamoxifen. These results support the public funding of tamoxifen under the NHIS and provide Ghanaian policy makers with vital information for future budgetary planning.


Assuntos
Neoplasias da Mama , Tamoxifeno , Neoplasias da Mama/tratamento farmacológico , Quimioterapia Adjuvante , Análise Custo-Benefício , Feminino , Gana , Hormônios/uso terapêutico , Humanos , Nitrilas/uso terapêutico , Perimenopausa , Tamoxifeno/uso terapêutico , Triazóis/uso terapêutico
12.
Aust J Gen Pract ; 50(8): 581-587, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34333575

RESUMO

BACKGROUND AND OBJECTIVES: Women's ability to negotiate condom use helps prevent sexually transmissible infections (STIs) and unintended pregnancies. The aim of this study was to assess the relationship between substance use, risk perception and the certainty of using condoms in several hypothetical situations. METHOD: This is a secondary analysis from the Australian Contraceptive ChOice pRoject (ACCORd) cluster randomised controlled trial. Descriptive statistics and logistic regression were used for the analysis. RESULTS: At baseline, contraceptive questions were answered by 698 women attending 57 general practices in Melbourne, Australia. Condom use was reported by 47%. Of those using condoms as the sole form of contraception (n = 137), 20% used them inconsistently. Dual protection was used by 58% of women (188/325). Condoms and the pill were more frequently used than condoms and longer-acting contraceptives. Women were less likely to be confident negotiating condom use when using substances. DISCUSSION: Substance use and the concurrent use of other forms of contraception impact use of condoms. Even when condoms are the sole form of contraception with willing partners, use is inconsistent, leaving women at risk of pregnancy and STI.


Assuntos
Preservativos , Anticoncepcionais , Austrália , Anticoncepção , Feminino , Humanos , Percepção , Gravidez
13.
Aust J Gen Pract ; 50(6): 422-425, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-34059848

RESUMO

BACKGROUND AND OBJECTIVES: Clinical guidelines advocate using long-acting reversible contraceptives (LARC) to reduce unintended pregnancy, but LARC use in Australia is poor. Additionally, little is known about contraceptive practices of women with a history of unintended pregnancy. The aim of this study was to describe current contraception use according to a history of unintended pregnancy. METHOD: Data were analysed from women recruited into The Australian Contraceptive ChOice pRoject (ACCORd) trial. RESULTS: Approximately 47% (128/275) of women aged 16-45 years reported unintended pregnancies, and 30% had an abortion (83/275). Contraceptive data available from 117 women showed that condoms (24%, n = 28/117) and the oral contraceptive pill (22%, n = 26/117) were most commonly used among women reporting one unintended pregnancy or more. DISCUSSION: These findings support implementing interventions to increase the uptake of effective contraception, as successfully demonstrated in the ACCORd trial, in general practice.


Assuntos
Medicina Geral , Gravidez não Planejada , Austrália , Anticoncepção , Anticoncepcionais , Feminino , Humanos , Gravidez
14.
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
15.
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
16.
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
18.
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
19.
BMJ Open ; 10(9): e035895, 2020 09 22.
Artigo em Inglês | MEDLINE | ID: mdl-32963063

RESUMO

INTRODUCTION: Through addressing main barriers to the uptake of long-acting reversible contraceptives (LARCs) among Australian women, the Australian Contraceptive ChOice pRoject (ACCORd) trialled an educational intervention targeting general practitioners (GPs) and provided those in the intervention group with a rapid referral service for quick insertion. The cluster randomised controlled trial resulted in greater uptake of LARC in the intervention group. This protocol paper describes a longitudinal follow-up to the ACCORd Study to assess the long-term efficacy and cost-effectiveness of the intervention. METHODS AND ANALYSIS: Women participants (patients of ACCORd GPs) completed a baseline, 6-month and 12-month survey. These participants will be invited to complete an additional follow-up survey 3 years post completion of their baseline interview. Based on the original ACCORd Study tools, the online survey will address long-term outcomes including contraceptive continuation rates and reproductive history, any unintended pregnancies, satisfaction and concerns with their current contraceptive method, and an assessment of quality of life. We will analyse data using binary regression models with generalised estimating equations and robust standard errors to account for clustering. DISCUSSION: Demonstration of sustained use, effectiveness at reducing unwanted pregnancies and cost-effectiveness of this strategy among this cohort of Australian primary care patients, will strengthen the policy and programme urgency of addressing wider dissemination of these strategies and replicating the study elsewhere. ETHICS AND DISSEMINATION: The ACCORd Study received approval from the Monash University Human Research Ethics Committee: CF16/188-201000080. Additionally, an amendment to conduct this 3-year longitudinal follow-up survey has been approved. The trial follow-up outcomes will be disseminated through formal academic pathways, including journal articles, national and international conferences and reports as well as using more 'mainstream' strategies such as seminars, workshops and media engagement. Additionally, outcomes will be communicated through policy briefs to Australian state and federal governments. TRAIL REGISTRATION NUMBER: This trial is registered with the Australian and New Zealand Trials Registry ACTRN12615001346561. Recruitment and data collection have been completed for the baseline, 6-month and 12-month surveys. Data collection for the 3-year survey commenced in August 2019.


Assuntos
Medicina Geral , Contracepção Reversível de Longo Prazo , Austrália , Feminino , Seguimentos , Humanos , Nova Zelândia , Gravidez , Qualidade de Vida , Ensaios Clínicos Controlados Aleatórios como Assunto
20.
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
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