Cluster Analysis

聚类分析
  • 文章类型: Journal Article
    在对两个医疗电子数据库进行了全面的文献检索后,PubMed和Embase,以及两个引文数据库,WebofScience核心收藏(WoS)和Scopus,我们旨在对医学研究中的医学史文献进行Altmetric和Scientometric分析。
    以下软件工具用于分析从PubMed和Embase数据库中检索到的记录,并进行合作分析,以确定涉及科学医学论文的国家,以及聚类关键词,以揭示未来医学史研究的趋势。这些软件工具(VOSviewer1.6.18和Spss16)允许研究人员可视化文献计量网络,进行统计分析,并识别数据中的模式和趋势。
    我们的分析揭示了来自PubMed的53,771条记录和来自EMBASE数据库的54,405条记录,这些记录在医学史领域由105,286位WoS的撰稿人检索。我们确定了157个在科学医学论文上合作的国家。通过对59,995个关键字进行聚类,我们能够揭示未来医学史研究的趋势。我们的研究结果表明,传统文献计量学和社交媒体指标(如医学史文献中的Altmetric注意力评分)之间存在正相关(p<0.05)。
    在社会科学网络中分享文章的研究成果将增加医学史研究中科学著作的知名度,这是影响文章引用的最重要因素之一。此外,我们对医学领域文献的概述使我们能够识别和检查医学史研究中的空白。
    UNASSIGNED: After conducting a comprehensive literature search of two medical electronic databases, PubMed and Embase, as well as two citation databases, Web of Science Core Collections (WoS) and Scopus, we aimed to conduct an Altmetric and Scientometric analysis of the History of Medicine literature in medical research.
    UNASSIGNED: The following software tools were used for analyzing the retrieved records from PubMed and Embase databases and conducting a collaboration analysis to identify the countries involved in scientific medical papers, as well as clustering keywords to reveal the trend of History of Medicine research for the future. These software tools (VOSviewer 1.6.18 and Spss 16) allowed the researchers to visualize bibliometric networks, perform statistical analysis, and identify patterns and trends in the data.
    UNASSIGNED: Our analysis revealed 53,771 records from PubMed and 54,405 records from EMBASE databases retrieved in the field of History of Medicine by 105,286 contributed authors in WoS. We identified 157 countries that collaborated on scientific medical papers. By clustering 59,995 keywords, we were able to reveal the trend of History of Medicine research for the future. Our findings showed a positive association between traditional bibliometrics and social media metrics such as the Altmetric Attention Score in the History of Medicine literature (p < 0.05).
    UNASSIGNED: Sharing research findings of articles in social scientific networks will increase the visibility of scientific works in History of Medicine research, which is one of the most important factors influencing the citation of articles. Additionally, our overview of the literature in the medical field allowed us to identify and examine gaps in the History of Medicine research.
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  • 文章类型: Journal Article
    背景:医院中过度使用实验室测试是一种医疗废物,也会伤害患者。制定和评估减少这种形式的医疗浪费的干预措施至关重要。我们详细介绍了我们研究的协议,该协议旨在实施和评估基于证据的影响,在不列颠哥伦比亚省成人医院的住院患者中重复使用常规实验室检测的多组分干预束,加拿大。
    方法:我们设计了一个阶梯式楔形整群随机试验,以评估加拿大不列颠哥伦比亚省16家医院的多组分干预措施的影响。我们将使用知识到行动周期来指导实施,并使用RE-AIM框架来指导干预措施的评估。主要结果将是在干预与对照期间每个患者每天订购的常规实验室检查的数量。次要结果衡量标准将评估实施保真度,使用的所有常见实验室测试的数量,对医疗成本的影响,和安全结果。该研究将包括入住成人病房(内科或家庭医学)的患者,以及在参与医院的这些病房工作的医疗保健提供者。在24周的基线期后,我们将在一个医院现场进行为期16周的试点。新的集群(包含大约2-3家医院)将每12周接受一次干预。我们将在最终集群实施后24周评估实施的可持续性。用意向来治疗,我们将使用广义线性混合模型进行分析,以评估干预对结局的影响.
    结论:该研究建立在先前已证明有效的多组分干预措施的基础上。干预束的元素很容易适应其他设置,促进未来在更广泛的背景下采用。研究结果预计将产生积极影响,因为它们将减少重复性实验室测试的使用,并为完成这项工作提供经验支持的措施和工具。
    背景:这项研究于2024年4月8日通过ClinicalTrials.gov协议注册和结果系统(NCT06359587)进行了前瞻性注册。https://经典。
    结果:gov/ct2/show/NCT06359587?term=NCT06359587&recrs=ab&draw=2&rank=1。
    BACKGROUND: Laboratory test overuse in hospitals is a form of healthcare waste that also harms patients. Developing and evaluating interventions to reduce this form of healthcare waste is critical. We detail the protocol for our study which aims to implement and evaluate the impact of an evidence-based, multicomponent intervention bundle on repetitive use of routine laboratory testing in hospitalized medical patients across adult hospitals in the province of British Columbia, Canada.
    METHODS: We have designed a stepped-wedge cluster randomized trial to assess the impact of a multicomponent intervention bundle across 16 hospitals in the province of British Columbia in Canada. We will use the Knowledge to Action cycle to guide implementation and the RE-AIM framework to guide evaluation of the intervention bundle. The primary outcome will be the number of routine laboratory tests ordered per patient-day in the intervention versus control periods. Secondary outcome measures will assess implementation fidelity, number of all common laboratory tests used, impact on healthcare costs, and safety outcomes. The study will include patients admitted to adult medical wards (internal medicine or family medicine) and healthcare providers working in these wards within the participating hospitals. After a baseline period of 24 weeks, we will conduct a 16-week pilot at one hospital site. A new cluster (containing approximately 2-3 hospitals) will receive the intervention every 12 weeks. We will evaluate the sustainability of implementation at 24 weeks post implementation of the final cluster. Using intention to treat, we will use generalized linear mixed models for analysis to evaluate the impact of the intervention on outcomes.
    CONCLUSIONS: The study builds upon a multicomponent intervention bundle that has previously demonstrated effectiveness. The elements of the intervention bundle are easily adaptable to other settings, facilitating future adoption in wider contexts. The study outputs are expected to have a positive impact as they will reduce usage of repetitive laboratory tests and provide empirically supported measures and tools for accomplishing this work.
    BACKGROUND: This study was prospectively registered on April 8, 2024, via ClinicalTrials.gov Protocols Registration and Results System (NCT06359587). https://classic.
    RESULTS: gov/ct2/show/NCT06359587?term=NCT06359587&recrs=ab&draw=2&rank=1.
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  • 文章类型: Journal Article
    背景:从基因表达数据中提取信息的一种广泛使用的方法是构建基因共表达网络和随后的基因簇计算检测,称为模块。WGCNA和相关方法是模块检测的事实上的标准。这项工作的目的是研究更复杂的算法对设计一种替代方法的适用性,该方法具有增强的提取生物学有意义的模块的潜力。
    结果:我们介绍了自学习基因聚类管道(SGCP),用于检测基因共表达网络中的模块的光谱方法。SGCP包含多个功能,使其与以前的工作不同,包括在自我学习步骤中利用基因本体论(GO)信息的新步骤。与在12个真实基因表达数据集上广泛使用的现有框架相比,我们表明SGCP产生具有较高GO富集的模块。此外,SGCP对与基线报告的术语大不相同的GO术语赋予最高的统计重要性。
    结论:在基因共表达网络中发现基因簇的现有框架是基于相对简单的算法组件。SGCP依赖于更新的算法技术,使高度丰富的模块具有独特的特点的计算,从而为基因共表达分析提供了一种新的替代工具。
    BACKGROUND: A widely used approach for extracting information from gene expression data employs the construction of a gene co-expression network and the subsequent computational detection of gene clusters, called modules. WGCNA and related methods are the de facto standard for module detection. The purpose of this work is to investigate the applicability of more sophisticated algorithms toward the design of an alternative method with enhanced potential for extracting biologically meaningful modules.
    RESULTS: We present self-learning gene clustering pipeline (SGCP), a spectral method for detecting modules in gene co-expression networks. SGCP incorporates multiple features that differentiate it from previous work, including a novel step that leverages gene ontology (GO) information in a self-leaning step. Compared with widely used existing frameworks on 12 real gene expression datasets, we show that SGCP yields modules with higher GO enrichment. Moreover, SGCP assigns highest statistical importance to GO terms that are mostly different from those reported by the baselines.
    CONCLUSIONS: Existing frameworks for discovering clusters of genes in gene co-expression networks are based on relatively simple algorithmic components. SGCP relies on newer algorithmic techniques that enable the computation of highly enriched modules with distinctive characteristics, thus contributing a novel alternative tool for gene co-expression analysis.
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  • 文章类型: Journal Article
    糖尿病视网膜病变是糖尿病中最常见的微血管病变之一。主要由胰岛素分泌不足或胰岛素活性降低导致的血糖代谢异常引起。流行病学调查结果显示,约1/3的糖尿病患者有糖尿病视网膜病变的征象,另外三分之一可能患有严重的视网膜病变,威胁视力。然而,糖尿病视网膜病变的发病机制尚不清楚,并且没有系统的方法来检测疾病的发作并有效地预测其发生。在这项研究中,我们使用糖尿病视网膜病变患者的医学检测数据,通过反向传播神经网络算法和层次聚类分析确定诱发疾病发作的关键生物标志物,最终获得疾病的预警信号。已经检测到诱发糖尿病视网膜病变的关键标志物,探索疾病发生的诱导机制,在疾病发生前传递强烈的预警信号。我们发现形成关键标志物的多种临床指标,比如糖化血红蛋白,血清尿酸,谷丙转氨酶与该病的发生密切相关。他们分别从个体的脂代谢、细胞氧化还原,骨代谢和骨吸收以及血液凝固的细胞功能。诱发糖尿病视网膜病变并发症的关键标志物并不独立起作用,而是在疾病发作之前形成一个完整的模块来协调和合作,并发出强烈的警告信号。该算法检测到的关键标志物对疾病的早期预警更加灵敏有效。因此,提出了一种与关键标志物相关的新方法,用于糖尿病微血管病变的研究。在临床预测和诊断中,医生可以使用关键标志物对个体疾病进行预警并进行早期干预。
    Diabetic retinopathy is one of the most common microangiopathy in diabetes, essentially caused by abnormal blood glucose metabolism resulting from insufficient insulin secretion or reduced insulin activity. Epidemiological survey results show that about one third of diabetes patients have signs of diabetic retinopathy, and another third may suffer from serious retinopathy that threatens vision. However, the pathogenesis of diabetic retinopathy is still unclear, and there is no systematic method to detect the onset of the disease and effectively predict its occurrence. In this study, we used medical detection data from diabetic retinopathy patients to determine key biomarkers that induce disease onset through back propagation neural network algorithm and hierarchical clustering analysis, ultimately obtaining early warning signals of the disease. The key markers that induce diabetic retinopathy have been detected, which can also be used to explore the induction mechanism of disease occurrence and deliver strong warning signal before disease occurrence. We found that multiple clinical indicators that form key markers, such as glycated hemoglobin, serum uric acid, alanine aminotransferase are closely related to the occurrence of the disease. They respectively induced disease from the aspects of the individual lipid metabolism, cell oxidation reduction, bone metabolism and bone resorption and cell function of blood coagulation. The key markers that induce diabetic retinopathy complications do not act independently, but form a complete module to coordinate and work together before the onset of the disease, and transmit a strong warning signal. The key markers detected by this algorithm are more sensitive and effective in the early warning of disease. Hence, a new method related to key markers is proposed for the study of diabetic microvascular lesions. In clinical prediction and diagnosis, doctors can use key markers to give early warning of individual diseases and make early intervention.
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  • 文章类型: Journal Article
    基于液滴的单细胞测序技术依赖于每个液滴封装单个细胞的基本假设,实现单个细胞组学分析。然而,多胞胎不可避免的问题,两个或多个细胞被包裹在一个液滴中,可能导致虚假的细胞类型注释和模糊的真实生物学发现。多重染色体的问题在单细胞多重组学设置中加剧,其中,集成用于聚类的跨模态信息可能会无意中促进多个聚类的聚合,并增加错误细胞类型注释的风险。这里,我们提出了一种基于复合泊松模型的单细胞多体组数据多重检测框架.利用实验细胞散列结果作为多重状态的真相,我们进行了三模态DOGMA-seq实验,并从两个组织中生成了17个基准数据集,共涉及280,123个液滴。我们证明了所提出的方法是集成跨模态多重信号的重要工具,有效消除单细胞多组学数据中的多重簇-基准单组学方法被证明是不充分的任务。
    Droplet-based single-cell sequencing techniques rely on the fundamental assumption that each droplet encapsulates a single cell, enabling individual cell omics profiling. However, the inevitable issue of multiplets, where two or more cells are encapsulated within a single droplet, can lead to spurious cell type annotations and obscure true biological findings. The issue of multiplets is exacerbated in single-cell multiomics settings, where integrating cross-modality information for clustering can inadvertently promote the aggregation of multiplet clusters and increase the risk of erroneous cell type annotations. Here, we propose a compound Poisson model-based framework for multiplet detection in single-cell multiomics data. Leveraging experimental cell hashing results as the ground truth for multiplet status, we conducted trimodal DOGMA-seq experiments and generated 17 benchmarking datasets from two tissues, involving a total of 280,123 droplets. We demonstrated that the proposed method is an essential tool for integrating cross-modality multiplet signals, effectively eliminating multiplet clusters in single-cell multiomics data-a task at which the benchmarked single-omics methods proved inadequate.
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  • 文章类型: Journal Article
    背景:危重患者在医院内运输期间可能会出现各种不良事件。因此,在将患者从急诊科运送之前,快速评估和分类患者,并专注于管理高危患者至关重要。目前,没有统一的分类方法;目前所有的方法都是主观的。
    目标:为了确保运输安全,我们对从急诊科转入重症监护病房的危重患者进行了聚类分析.
    方法:单中心队列研究。本研究在北京某综合性一流教学医院进行。采用便利抽样和连续登记。我们收集了2019年1月1日至2021年12月31日的数据。所有病人都从急诊科转移到重症监护室,并使用五个变量进行聚类分析。
    结果:共584例患者被分为三组。第1组(高收缩压组)包括208名(35.6%)患者。第2组(高心率和低血氧组)包括55名(9.4%)患者。第3组(正常组)包括其余321名(55%)患者。所有患者运输后的血氧饱和度均较低,在第2组中,不良事件的比例(61.8%)最高(p<0.05)。
    结论:本研究利用来自聚类分析的五个重要生命体征的数据来探索可能的患者分类,并为确保运输安全提供参考。
    结论:在转移患者之前,我们应该对他们进行分类,并实施有针对性的护理。应考虑所有患者的血氧水平变化,重点关注高心率和低血氧水平患者在运输过程中不良事件的发生。
    BACKGROUND: Critical patients may experience various adverse events during transportation within hospitals. Therefore, quickly evaluating and classifying patients before transporting them from the emergency department and focusing on managing high-risk patients are critical. At present, no unified classification method exists; all the current approaches are subjective.
    OBJECTIVE: To ensure transportation safety, we conducted a cluster analysis of critically ill patients transferred from the emergency department to the intensive care unit.
    METHODS: Single-centre cohort study. This study was conducted at a comprehensive first-class teaching hospital in Beijing. Convenience sampling and continuous enrolment were employed. We collected data from 1 January 2019, to 31 December 2021. All patients were transferred from the emergency department to the intensive care unit, and cluster analysis was conducted using five variables.
    RESULTS: A total of 584 patients were grouped into three clusters. Cluster 1 (high systolic blood pressure group) included 208 (35.6%) patients. Cluster 2 (high heart rate and low blood oxygen group) included 55 (9.4%) patients. Cluster 3 (normal group) included the remaining 321 (55%) patients. The oxygen saturation levels of all the patients were lower after transport, and the proportion of adverse events (61.8%) was the highest in Cluster 2 (p < .05).
    CONCLUSIONS: This study utilized data on five important vital signs from a cluster analysis to explore possible patient classifications and provide a reference for ensuring transportation safety.
    CONCLUSIONS: Before transferring patients, we should classify them and implement targeted care. Changes in blood oxygen levels in all patients should be considered, with a focus on the occurrence of adverse events during transportation among patients with high heart rates and low blood oxygen levels.
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  • 文章类型: Journal Article
    背景:肿瘤浸润免疫细胞(TIIC)的空间背景在预测结直肠癌(CRC)患者的临床结局方面很重要。然而,TIIC空间分布的预后价值未知.因此,我们的目的是在大量CRC样本中研究原位TIIC与患者预后之间的相关性.
    方法:我们在190个CRC样本中实施了多重免疫组织化学染色技术,以原位定量14个TIIC亚组。为了描绘TICs与肿瘤细胞的空间关系,基于图像识别技术将组织切片分割成肿瘤细胞和微环境区室,并且通过实现计算管道phenoptr来计算免疫细胞和肿瘤细胞之间的距离。
    结果:MPO+中性粒细胞和CD68+IDO1+肿瘤相关巨噬细胞(TAMs)在上皮区室富集,髓系细胞位于最靠近肿瘤细胞的位置。除CD68+CD163+TAM外,其他细胞均与良好预后呈正相关.TIIC的预后预测能力与其与肿瘤细胞的距离高度相关。无监督聚类分析将结直肠癌分为三种亚型,具有不同的预后结果,相关分析揭示了B细胞之间的协同作用,CD68+IDO1+TAM,和T谱系细胞产生有效的免疫反应。
    结论:我们的研究表明,空间定位与TIIC丰度的整合对于综合预后评估很重要。
    BACKGROUND: The spatial context of tumor-infiltrating immune cells (TIICs) is important in predicting colorectal cancer (CRC) patients\' clinical outcomes. However, the prognostic value of the TIIC spatial distribution is unknown. Thus, we aimed to investigate the association between TIICs in situ and patient prognosis in a large CRC sample.
    METHODS: We implemented multiplex immunohistochemistry staining technology in 190 CRC samples to quantify 14 TIIC subgroups in situ. To delineate the spatial relationship of TIICs to tumor cells, tissue slides were segmented into tumor cell and microenvironment compartments based on image recognition technology, and the distance between immune and tumor cells was calculated by implementing the computational pipeline phenoptr.
    RESULTS: MPO+ neutrophils and CD68+IDO1+ tumor-associated macrophages (TAMs) were enriched in the epithelial compartment, and myeloid lineage cells were located nearest to tumor cells. Except for CD68+CD163+ TAMs, other cells were all positively associated with favorable prognosis. The prognostic predictive power of TIICs was highly related to their distance to tumor cells. Unsupervised clustering analysis divided colorectal cancer into three subtypes with distinct prognostic outcomes, and correlation analysis revealed the synergy among B cells, CD68+IDO1+TAMs, and T lineage cells in producing an effective immune response.
    CONCLUSIONS: Our study suggests that the integration of spatial localization with TIIC abundance is important for comprehensive prognostic assessment.
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  • 文章类型: Journal Article
    根据单分子定位显微镜,几乎所有的质膜蛋白质都成簇。我们证明了簇可以起因于膜形貌的变化,其中随机分布的膜分子的局部密度在一定程度上与膜的局部量的变化相匹配。Further,我们证明,通过使用膜标记报告膜数量的局部变化,可以将这种错误的聚类与真正的聚类区分开来。在使用膜探针DiI以及转铁蛋白受体或GPI锚定蛋白CD59的双色活细胞单分子定位显微镜中,我们发现配对相关分析报告蛋白质和DiI均成簇,其衍生对相关-光活化定位显微镜和最近邻分析也是如此。在将定位转换为图像并使用DiI图像来分解地形变化之后,没有可见的CD59簇,这表明其他方法报告的聚类是一种假象。然而,在排除地形变化后,TfR簇仍然存在。我们证明了膜形貌的变化可以使膜分子看起来成簇,并提出了一种直接的补救措施,适合作为聚类分析流程的第一步。
    According to single-molecule localisation microscopy almost all plasma membrane proteins are clustered. We demonstrate that clusters can arise from variations in membrane topography where the local density of a randomly distributed membrane molecule to a degree matches the variations in the local amount of membrane. Further, we demonstrate that this false clustering can be differentiated from genuine clustering by using a membrane marker to report on local variations in the amount of membrane. In dual colour live cell single molecule localisation microscopy using the membrane probe DiI alongside either the transferrin receptor or the GPI-anchored protein CD59, we found that pair correlation analysis reported both proteins and DiI as being clustered, as did its derivative pair correlation-photoactivation localisation microscopy and nearest neighbour analyses. After converting the localisations into images and using the DiI image to factor out topography variations, no CD59 clusters were visible, suggesting that the clustering reported by the other methods is an artefact. However, the TfR clusters persisted after topography variations were factored out. We demonstrate that membrane topography variations can make membrane molecules appear clustered and present a straightforward remedy suitable as the first step in the cluster analysis pipeline.
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  • 文章类型: Journal Article
    植被是土地之间的重要纽带,大气,和水,使其变化具有重要意义。然而,现有的研究主要集中在长期植被变化上,忽略植被的年内变化。因此,本研究基于2000年至2022年的增强植被指数(EVI)数据,时间步长为16天,分析中国植被年际变化格局。计算了每个市级行政区的年度平均EVI值,并采用时间序列k均值聚类算法来划分这些区域,探索中国植被年际变化的空间变化。最后,岭回归和随机森林方法被用来评估年内植被变化的驱动因素。结果表明:(1)中国的植被状况表现出明显的夏季高,冬季低的年内变化模式。”,北部地区的变化比南部地区更为明显;(2)年度内植被变化表现出明显的区域差异,中国可以最佳地分为四个不同的集群,与中国的温度和降水区很好地吻合;(3)年内植被变化与露点温度等气象因素显着相关,降水,最高温度,和海平面压力。总之,我们的研究揭示了这些特征,中国植被年际变化的空间格局和驱动力,这有助于解释生态系统的反应机制,为生态学研究以及生态保护和管理策略的制定提供有价值的见解。
    Vegetation is an important link between land, atmosphere, and water, making its changes of great significance. However, existing research has predominantly focused on long-term vegetation changes, neglecting the intra-annual variations of vegetation. Hence, this study is based on the Enhanced Vegetation Index (EVI) data from 2000 to 2022, with a time step of 16 days, to analyze the intra-annual patterns of vegetation changes in China. The average intra-annual EVI values for each municipal-level administrative region were calculated, and the time-series k-means clustering algorithm was employed to divide these regions, exploring the spatial variations in China\'s intra-annual vegetation changes. Finally, the ridge regression and random forest methods were utilized to assess the drivers of intra-annual vegetation changes. The results showed that: (1) China\'s vegetation status exhibits a notable intra-annual variation pattern of \"high in summer and low in winter,\" and the changes are more pronounced in the northern regions than in the southern regions; (2) the intra-annual vegetation changes exhibit remarkable regional disparities, and China can be optimally clustered into four distinct clusters, which align well with China\'s temperature and precipitation zones; and (3) the intra-annual vegetation changes demonstrate significant correlations with meteorological factors such as dew point temperature, precipitation, maximum temperature, and sea-level pressure. In conclusion, our study reveals the characteristics, spatial patterns and driving forces of intra-annual vegetation changes in China, which contribute to explaining ecosystem response mechanisms, providing valuable insights for ecological research and the formulation of ecological conservation and management strategies.
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  • 文章类型: Journal Article
    引发患者价值观的严重疾病对话(SIC),目标,和护理偏好减少焦虑和抑郁,提高生活质量,但癌症患者很少发生。针对临床医生和/或患者的行为经济实施策略(轻推)可能会增加SIC完成。
    测试临床医生和患者轻推对SIC完成的独立和综合影响。
    A2×2阶乘,本研究于2021年9月7日至2022年3月11日在宾夕法尼亚州和新泽西州大型学术卫生系统内的4家医院和6个社区中心的肿瘤科诊所进行,纳入163名内科和妇科肿瘤临床医师和4450名具有高死亡风险(180日死亡率风险≥10%)的癌症患者中.
    临床医师集群和患者被独立随机分配接受常规治疗和轻推,产生4个武器:(1)主动控制,在试验开始前运行2年,由临床医生短信提醒组成,以完成高死亡率风险患者的SIC;(2)仅临床医生轻推,包括主动控制加上每周同行比较临床医生水平的SIC完成率;(3)仅患者微动,由主动控制和临床前电子通信组成,旨在为患者提供SIC;(4)结合临床医生和患者的轻推。
    主要结果是参与者在随机分组后首次就诊后6个月内电子健康记录中记录的SIC。在患者水平的意向治疗基础上进行分析。
    该研究累积了4450名患者(中位年龄,67年[IQR,59-75岁];163名临床医生观察到2352名女性[52.9%],随机分为主动对照(n=1004),临床医生轻推(n=1179),患者轻推(n=997),或组合推动(n=1270)。主动控制臂的6个月SIC完成的总体患者水平率为11.2%(1004个中的112个),临床医生推臂的11.5%(1179个中的136个),11.5%的患者推臂(115/997),和14.1%的组合推动臂(1270个中的179个)。与主动控制相比,综合推动与SIC率的增加相关(风险比[rHR],1.55[95%CI,1.00-2.40];P=0.049),而临床医生轻推(HR,0.95[95%CI,0.64-1.41;P=0.79)和患者轻推(HR,0.99[95%CI,0.73-1.33];P=.93)没有。
    在这项整群随机试验中,与主动对照相比,结合临床医生同伴比较和患者启动问卷的轻推与记录在案的SIC略有增加相关。结合临床和患者指导的轻推可能有助于在常规癌症护理中促进SIC。
    ClinicalTrials.gov标识符:NCT04867850。
    UNASSIGNED: Serious illness conversations (SICs) that elicit patients\' values, goals, and care preferences reduce anxiety and depression and improve quality of life, but occur infrequently for patients with cancer. Behavioral economic implementation strategies (nudges) directed at clinicians and/or patients may increase SIC completion.
    UNASSIGNED: To test the independent and combined effects of clinician and patient nudges on SIC completion.
    UNASSIGNED: A 2 × 2 factorial, cluster randomized trial was conducted from September 7, 2021, to March 11, 2022, at oncology clinics across 4 hospitals and 6 community sites within a large academic health system in Pennsylvania and New Jersey among 163 medical and gynecologic oncology clinicians and 4450 patients with cancer at high risk of mortality (≥10% risk of 180-day mortality).
    UNASSIGNED: Clinician clusters and patients were independently randomized to receive usual care vs nudges, resulting in 4 arms: (1) active control, operating for 2 years prior to trial start, consisting of clinician text message reminders to complete SICs for patients at high mortality risk; (2) clinician nudge only, consisting of active control plus weekly peer comparisons of clinician-level SIC completion rates; (3) patient nudge only, consisting of active control plus a preclinic electronic communication designed to prime patients for SICs; and (4) combined clinician and patient nudges.
    UNASSIGNED: The primary outcome was a documented SIC in the electronic health record within 6 months of a participant\'s first clinic visit after randomization. Analysis was performed on an intent-to-treat basis at the patient level.
    UNASSIGNED: The study accrued 4450 patients (median age, 67 years [IQR, 59-75 years]; 2352 women [52.9%]) seen by 163 clinicians, randomized to active control (n = 1004), clinician nudge (n = 1179), patient nudge (n = 997), or combined nudges (n = 1270). Overall patient-level rates of 6-month SIC completion were 11.2% for the active control arm (112 of 1004), 11.5% for the clinician nudge arm (136 of 1179), 11.5% for the patient nudge arm (115 of 997), and 14.1% for the combined nudge arm (179 of 1270). Compared with active control, the combined nudges were associated with an increase in SIC rates (ratio of hazard ratios [rHR], 1.55 [95% CI, 1.00-2.40]; P = .049), whereas the clinician nudge (HR, 0.95 [95% CI, 0.64-1.41; P = .79) and patient nudge (HR, 0.99 [95% CI, 0.73-1.33]; P = .93) were not.
    UNASSIGNED: In this cluster randomized trial, nudges combining clinician peer comparisons with patient priming questionnaires were associated with a marginal increase in documented SICs compared with an active control. Combining clinician- and patient-directed nudges may help to promote SICs in routine cancer care.
    UNASSIGNED: ClinicalTrials.gov Identifier: NCT04867850.
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