Efficiency

效率
  • 文章类型: Journal Article
    背景:医学研究生产率在全球范围内不断提高,由于面临重大挑战,第三世界国家的进展滞后,包括培训不足和人才流失。在战争爆发之前,叙利亚一直表现出缓慢的上升趋势,严重阻碍了学术增长和生产力。在这种情况下,深入了解影响研究生产率的因素对于指导教育政策和资源分配至关重要。先前评估叙利亚学者对这一问题的观点的横断面研究受到已发表的医护人员样本量小的限制,这使得很难确定使他们能够进行研究的因素。
    方法:为了应对这一挑战,我们采用了病例控制设计。我们分离了已发表的早期职业叙利亚医护人员,并将他们的特征和看法与未发表的匹配对照进行了比较。医学领域的作者,牙科,通过对PubMed和GoogleScholar的广泛搜索,确定了与任何叙利亚大学有联系的药房。这些作者被邀请填写一份涵盖参与者研究贡献的问卷,除了他们自我评估的知识,态度,和研究的障碍。问卷公开发布,以招募同等样本的匹配对照,一半由未发表的研究人员组成,另一半由没有先前研究贡献的参与者组成。
    结果:招募了十六名参与者。他们的知识,态度,感知障碍解释了研究参与和出版的46%和34%的可变性,分别(P<0.001)。参与和发表与研究相关的知识和态度较高的研究研究(P<0.001)。受访者对研究相关障碍及其学业成绩的评估在案例和对照之间没有差异。优越的研究相关知识和态度与男性相关,更高的英语能力,和更好的互联网连接。同时,课外培训和导师的支持与更积极的研究相关态度和更少的感知障碍相关。
    结论:叙利亚医疗专业人员的研究生产率与他们对医学研究的知识和态度呈正相关。值得注意的是,人口统计学差异与研究相关知识和动机的差异有关。总之,这些结果表明,通过集中力量改善课外培训干预措施和导师的支持,这是一个潜在的增强途径。
    BACKGROUND: Medical research productivity is globally increasing, with a lagging progress in third-world countries due to significant challenges, including inadequate training and brain drain. Syria had been showing a slow upward trend until the war broke out and severely hindered academic growth and productivity. A deeper understanding of the factors influencing research productivity in this context are fundamental to guide educational policies and resource allocation. Previous cross-sectional studies that evaluated the perspectives of Syrian academics on the issue were limited by the small sample size of published healthcare workers, making it difficult to identify the factors that enabled them to pursue research.
    METHODS: To address this challenge, we employed a case-control design. We isolated published early-career Syrian healthcare workers and compared their characteristics and perceptions to unpublished matched controls. Authors in the fields of medicine, dentistry, and pharmacy affiliated with any Syrian University were identified through an extensive search of PubMed and Google Scholar.These authors were invited to complete a questionnaire that covered participants\' research contributions, alongside their self-assessed knowledge, attitudes, and barriers towards research. The questionnaire was publicly published to recruit an equal sample of matching controls, with half consisting of unpublished researchers and the other half of participants without prior research contributions.
    RESULTS: Six-hundred-sixteen participants were recruited. Their knowledge, attitudes, and perceived barriers explained 46% and 34% of the variability in research involvement and publication, respectively (P < 0.001). Getting involved in and publishing research studies associated with higher research-related knowledge and attitudes (P < 0.001). Respondents\' assessment of research-related barriers and their academic scores did not differ between cases and controls. Superior research-related knowledge and attitudes were associated with male gender, higher English competency, and better internet connectivity. Meanwhile, extracurricular training and mentors\' support were associated with more positive research-related attitudes and less perceived barriers.
    CONCLUSIONS: Research productivity of medical professionals in Syria exhibits a positive correlation with their knowledge and favorable attitudes towards medical research. Noteworthy, the demographic variations are linked to disparities in research-related knowledge and motivation. In conclusion, these results suggest a potential avenue for enhancement through concentrated efforts on improving extracurricular training interventions and mentors\' support.
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  • 文章类型: Journal Article
    全球能源使用的增加和化石燃料依赖导致的全球变暖等环境问题凸显了转向可再生能源的迫切需要。钙钛矿太阳能电池(PSC)是一个有前途的选择,为具有成本效益的生产提供高效率和潜力。这项研究深入研究了与金属卤化物PSC(M-PSC)和碳基电极PSS(C-PSC)相关的环境问题和可行的解决方案。它展示了PSC技术的快速进步,强调其提供高效和经济的可再生能源选择的潜力。然而,这些技术对环境的影响,特别是M-PSC中有毒铅(Pb)的利用以及C-PSC中的稳定性和降解问题,它们的广泛应用和可持续性面临相当大的障碍。本文详细介绍了PSC的最新进展,通过创新的材料组合和设备设计,专注于增强设备效率和稳定性。尽管如此,与有毒物质从受损或恶化的PSC扩散到生态系统相关的环境危害引起了人们的重大关注。特别是,来自M-PSC的Pb污染土壤和水生生态系统的风险是人类和环境健康的紧迫问题,促进对替代材料和方法的研究,以减少这些影响。作者研究了几种策略,包括引入无铅钙钛矿,阻止有害物质逸出的封装方法,和PSC元素的回收。该研究强调必须使技术创新与环境和健康考虑保持一致,呼吁对可持续和安全的PSC技术进行持续研究。这篇综述强调了对PSC技术进行详细评估的必要性,专注于他们的可再生能源贡献,环境影响,以及减轻这些影响的策略。作者呼吁有凝聚力的策略来开发有效的PSC,成本效益高,环保,和安全的广泛使用。
    The urgent need to shift to renewable energy is highlighted by rising global energy use and environmental issues like global warming from fossil fuel dependency. Perovskite solar cells (PSCs) stand out as a promising option, providing high efficiency and potential for cost-effective production. This study delves into the environmental concerns and viable solutions linked with metal-halide PSCs (M-PSCs) and carbon-based electrode PCSs (C-PSCs). It showcases the swift progress in PSC technology, highlighting its potential to deliver efficient and economical renewable energy options. Yet, the environmental implications of these technologies, especially the utilization of toxic lead (Pb) in M-PSCs and the issues of stability and degradation in C-PSCs, represent considerable hurdles for their broad application and sustainability. The paper details the recent advances in PSCs, focusing on enhancements in device efficiency and stability through innovative material combinations and device designs. Nonetheless, the environmental hazards linked to the dispersal of toxic substances from compromised or deteriorating PSCs into the ecosystem raise significant concerns. In particular, the risk of Pb from M-PSCs contaminating soil and aquatic ecosystems is a pressing issue for human and environmental health, spurring investigations into alternative materials and methods to diminish these impacts. The authors examine several strategies, including the introduction of Pb-free perovskites, encapsulation methods to block the escape of hazardous substances, and the recycling of PSC elements. The study stresses the necessity of aligning technological innovations with considerations for the environment and health, calling for ongoing research into PSC technologies that are sustainable and safe. This review highlights the need for detailed assessments of PSC technologies, focusing on their renewable energy contributions, environmental impacts, and strategies to mitigate these effects. The authors call for a cohesive strategy to develop PSCs that are efficient, cost-effective, eco-friendly, and safe for widespread use.
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  • 文章类型: Journal Article
    该研究通过巴基斯坦ISO9001认证大学的学术和行政人员的工作满意度,研究了员工培训对大学生产率的影响,采用定量研究方法。数据是通过在线调查收集的,使用学术和行政人员的目的抽样,使用SmartPLS-4进行分析。结果表明,员工培训显著影响工作满意度和大学生产率,工作满意度是一个重要的中介。这项研究通过验证ISO9001认证大学的组织学习理论,为学术话语做出了贡献。通过符合ISO9001标准的员工培训,强调提高生产力和工作满意度。它还强调了QMS对员工态度和大学生产力的影响,强调实施ISO9001的重要性,特别是通过员工培训,在大学运营中。实际影响包括对决策者的建议,管理员,和质量经理优先考虑以ISO9001为重点的培训,以提高生产率和认证成功率,培养一种持续学习的文化,提高教育质量和组织成果。然而,限制,如研究的横截面设计,目的抽样,而专注于巴基斯坦的特定大学可能会限制普遍性。未来的研究应该探索新的方法来理解影响学术和行政人员工作满意度的因素,以提高全球通过ISO9001认证的大学的生产力。
    The study examines the influence of staff training on university productivity through the job satisfaction of academic and administrative staff in ISO 9001-certified universities in Pakistan, utilizing a quantitative research approach. Data were gathered through online surveys using purposive sampling from academic and administrative staff, with analysis performed using SmartPLS-4. The results indicate that staff training significantly influences both job satisfaction and university productivity, with job satisfaction serving as a significant mediator. This research contributes to scholarly discourse by validating Organizational Learning Theory in ISO 9001-certified universities, highlighting the enhancement of productivity and job satisfaction through ISO 9001-aligned staff training. It also underscores the influence of QMS on employee attitudes and university productivity, highlighting the significance of ISO 9001 implementation, specifically through staff training, in university operations. Practical implications include recommendations for policymakers, administrators, and quality managers to prioritize ISO 9001-focused training to boost productivity and certification success, foster a culture of continuous learning, and improve educational quality and organizational outcomes. However, limitations such as the study\'s cross-sectional design, purposive sampling, and focus on specific universities in Pakistan may limit generalizability. Future research should explore novel approaches to understanding factors influencing job satisfaction among academic and administrative staff to enhance productivity in ISO 9001-certified universities worldwide.
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  • 文章类型: Journal Article
    当考虑牙科修复时,使用固定局部义齿是最广泛接受的治疗选择之一。在过去,制造是使用传统技术完成的,传统的工作流程是迄今为止流行的方法;然而,如今,数字工作流程被用作制造假体的一种手段。本系统综述旨在通过考虑工作流程各自的质量来比较工作流程,比如精度,效率,成本效益,和临床表现。已经进行了完整的搜索,以将2012年至2023年之间发表的任何相关研究纳入Scopus等数据库。WebofScience,PubMed,ScienceDirect,科克伦图书馆两名独立审稿人筛选了纳入的文章,并通过NIH工具评估了研究的方法学质量评级。经过系统的搜索策略,共审查了22篇相关文章。审查的主要结果是发现数字工作流程减少了工作时间,消除托盘的选择,最大限度地减少材料消耗,增强患者的舒适度和接受度。研究还表明,数字工作流程比传统工作流程带来了更高的患者满意度和更高的成功率。由于成本效益,数字牙科的工作流程比传统的工作流程更好。准确度,以及固定假体制造的时间优化。
    When considering dental restorations, the use of fixed partial dentures is one of the most widely accepted treatment options. In the past, fabrication was done using traditional techniques and the conventional workflow was by far the popular method; however, nowadays digital workflows are being used as a means to produce the prosthesis. This systematic review aims to compare the workflows by considering their respective qualities, such as precision, efficiency, cost-effectiveness, and clinical performance. A complete search has been carried out to incorporate any relevant studies published between the years 2012 and 2023 in databases such as Scopus, Web of Science, PubMed, ScienceDirect, and Cochrane Library. Two independent reviewers screened articles for inclusion and assessed the studies\' methodological quality rating via the NIH Tool. A total of 22 relevant articles were reviewed after a systematic search strategy. The main outcome of the review was digital workflows were found to reduce working time, eliminate the selection of trays, minimize material consumption, and enhance patient comfort and acceptance. The studies also showed that digital workflows resulted in greater patient satisfaction and higher success rates than conventional workflows. Workflows for digital dentistry demonstrated to be better than traditional ones due to the cost-effectiveness, accuracy, and time optimization for the fabrication of fixed prostheses.
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  • 文章类型: Journal Article
    背景:远程医疗有利于提高癌症患者的治疗效率和降低医疗费用。这项研究的重点是癌症患者通过中国的区域远程医疗平台参与远程会诊,分析咨询过程,为远程医疗的临床应用提供参考。
    方法:我们收集了2015年至2022年通过区域远程医疗平台进行的癌症患者远程咨询的信息。利用SPSS23.0软件,我们进行了描述性分析,总结了患者性别的分布,年龄,区域,和疾病类型。采用有序logistic回归分析影响远程会诊等待时间和会诊时间的因素。
    结果:从2015年到2022年,通过区域远程医疗平台为癌症患者进行了23,060次远程咨询,平均增长率为11.09%。主要的会诊类型是肺癌,肝癌,和乳腺癌,占18.14%,10.49%,和9.46%。57.05%的远程会诊等待时间少于24小时,而患者年龄,咨询专家级,和疾病类型是影响等待时间的主要因素。50.06%的远程会诊持续时间超过20分钟,邀请医院级别和邀请顾问职称是影响咨询持续时间的主要因素。
    结论:在中国,远程医疗已广泛应用于癌症的临床诊断和治疗,涵盖各种类型的肿瘤疾病。然而,电话会诊的等待时间一般在12小时以上,指出需要加强咨询安排和分配更多专家资源,以进一步优化远程咨询的效率。此外,院外癌症门诊患者的远程健康管理需要进一步探索。
    BACKGROUND: Telemedicine is beneficial for improving treatment efficiency and reducing medical expenses of cancer patients. This study focuses on cancer patients participating in teleconsultations through a regional telemedicine platform in China, analyzes the consultation process, and provides references for the clinical application of telemedicine.
    METHODS: We collected information on teleconsultations of cancer patients conducted from 2015 to 2022 through the regional telemedicine platform. Utilizing SPSS 23.0 software, we conducted descriptive analysis to summarize the distribution of patient gender, age, region, and disease types. The ordinal logistic regression analysis was adopted to analyze the factors influencing the waiting time and consultation duration for teleconsultations.
    RESULTS: From 2015 to 2022, a total of 23,060 teleconsultations were conducted for cancer patients via regional telemedicine platform, with an average growth rate of 11.09%. The main types of consultations were for lung cancer, liver cancer, and breast cancer, accounting for 18.14%, 10.49%, and 9.46% respectively. 57.05% of teleconsultations had a waiting time of less than 24 h, while patient age, consultation expert level, and disease type were the main factors influencing the waiting time. 50.06% of teleconsultations had a duration of more than 20 min, and the inviting hospital level and the title of invited consultant were the main factors influencing the consultation duration.
    CONCLUSIONS: In China, telemedicine has been widely employed in the clinical diagnosis and treatment of cancers, covering various types of oncological diseases. However, the waiting time for teleconsultations was generally more than 12 h, indicating the need to enhance consultation scheduling and allocate more expert resources to further optimize the efficiency of teleconsultations. Additionally, further exploration is required for remote health management of outpatients with cancers outside the hospital.
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  • 文章类型: Journal Article
    全要素生产率是经济高质量发展的重要标志。目前,数字经济能否为提高全要素生产率注入新的动力,这一问题在中国已经成为一个突出的问题。本文利用2011-2020年中国省际面板数据,构建了一种新的非期望产出,用基于松弛测度(SBM)的非期望全要素生产率(CTFP)。然后,本文利用固定效应(FE)面板模型和中介效应模型探讨了数字经济(DIG)对CTFP的影响。结果表明,CTFP平均增长3.9%,技术效率贡献-1.1%,技术进步贡献率为5.0%。技术进步是CTFP增长的主要源泉。实证结果表明,DIG对CTFP有积极而显著的影响。本文进行了各种稳健性测试,结果与之前的结论保持一致。此外,机制测试表明,DIG对CTFP的促进作用可归因于三个主要效应:技术创新,要素禀赋结构和教育水平。此外,异质性分析结果表明,DIG对CTFP的促进作用在中国东部地区存在,中部和西部地区。这项研究的结果可以作为一个有价值的参考,为有关中国环境治理和经济高质量发展的决策过程提供参考。
    Total factor productivity is an important symbol of high-quality economic development. At present, the question of whether the digital economy can infuse fresh impetus into enhancing total factor productivity has emerged as a prominent concern in China. This paper constructs a new undesirable output to measure comprehensive total factor productivity (CTFP) with the slack-based measure (SBM) undesirable Malmquist-Luenberger index by using 2011-2020 Chinese provincial panel data. Then, this paper explores the impact of the digital economy (DIG) on CTFP with a fixed effects (FE) panel model and a mediating effect model. The results show that CTFP increases by an average of 3.9%, technical efficiency contributes -1.1%, and the contribution rate of technological progress is 5.0%. Technological progress is the main source of CTFP growth. The empirical findings show that the DIG has a positive and significant impact on CTFP. This paper conducts various robustness tests, and the results remain consistent with the previous conclusion. Moreover, mechanism tests suggest that the promoting effect of the DIG on CTFP can be attributed to three main effects: technological innovation, the factor endowment structure and the educational level. Furthermore, the results of heterogeneity analysis demonstrate that the promoting effect of the DIG on CTFP exists in China\'s eastern, central and western regions. The findings of this research can serve as a valuable reference for informing decision-making processes related to environmental governance and high-quality economic development in China.
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  • 文章类型: Journal Article
    猪胃肠道中的微生物种群可以通过将纤维状副产物掺入日粮中而受到影响。这项研究调查了在猪饮食中加入两种类型的干橄榄饼(OC)对粪便细菌组成的影响。粪便菌群与生长性能的相关性,营养素消化率,还评估了肠道发酵模式和浆液气体排放。将30头雄性Pietrainx(长白猪x大白猪)(47.9±4.21kg)分为三组:对照组(C),一组饲喂20%部分脱脂OC(20PDOC)的饮食,一组饲喂20%旋风OC(20COC)的饮食21天。分析在提供实验饮食之前和之后收集的粪便样品的16SrRNA基因的V3-V4区域。猪称重,在整个研究过程中记录饲料摄入量。测量来自浆料的潜在氨和甲烷排放。α多样性指数没有发现显著差异。分类学分析显示,Firmicutes和Bacteroidota在所有组的门水平上占主导地位。使用ALDEx的差异丰度分析显示,对于门的各种细菌,属,和实验结束时的物种水平。来自20PDOC和20COC组的猪表现出增加的健康促进细菌的丰度,例如门水平的Plattomycetota和属水平的Allisonella和来自Eggerthellaceae科的一个未鉴定的属。这些变化影响了浆料中短链脂肪酸(SCFA)的浓度,导致更大的乙酸,丁酸,OC喂养组中的己酸和庚酸,尤其是20COC猪。波动率分析显示,未培养的拟杆菌和未培养的Selenomonadaceae与能量消化率之间存在显着正相关(p<0.05)。单球形和脱硫弧菌与总SCFA呈显著正相关(p<0.05),表明对肠道发酵的影响很大。然而,生长性能参数和潜在的气体排放与特定细菌属没有显着相关性。总之,我们的结果表明,在猪日粮中加入OC可以积极调节和促进肠道微生物群的有利组成和功能。此外,养分消化率和肠道发酵模式可能与特定的微生物种群有关。
    The microbial population in the pig\'s gastrointestinal tract can be influenced by incorporating fibrous by-products into the diets. This study investigated the impact of including two types of dried olive cake (OC) in pigs\' diets on fecal bacterial composition. The correlation between fecal microbiota and growth performance, nutrient digestibility, gut fermentation pattern and slurry gas emissions was also evaluated. Thirty male Pietrain x (Landrace x Large white) pigs (47.9 ± 4.21 kg) were assigned to three groups: a control group (C), a group fed a diet with 20% partially defatted OC (20PDOC), and a group fed a diet with 20% cyclone OC (20COC) for 21 days. Fecal samples collected before and after providing the experimental diets were analyzed for the V3-V4 region of the 16S rRNA gene. Pigs were weighed, and feed intake was recorded throughout the study. Potential ammonia and methane emissions from slurry were measured. No significant differences in alpha diversity indexes were found. The taxonomic analysis revealed that Firmicutes and Bacteroidota phyla were dominant at the phylum level across all groups. Differential abundance analysis using ALDEx showed significant differences among groups for various bacteria at the phylum, genus, and species levels at the end of the experiment. Pigs from 20PDOC and 20COC groups exhibited increased abundances of health-promoting bacteria, such as Plactomycetota at the phylum level and Allisonella and an unidentified genus from the Eggerthellaceae family at the genus level. These changes influenced short-chain fatty acids\' (SCFA) concentration in slurries, leading to greater acetic, butyric, caproic and heptanoic acids in OC-fed groups, especially 20COC pigs. A volatility analysis revealed significant positive correlations (p < 0.05) between Uncultured_Bacteroidales and Unculured_Selenomonadaceae and energy digestibility. Monoglobus and Desulfovibrio showed a positive significant (p < 0.05) correlation with total SCFA, indicating a high impact on gut fermentation. However, growth performance parameters and potential gas emission displayed no significant correlations with a specific bacterial genus. In conclusion, our results suggest that OC inclusion into pig diets could positively modulate and contribute to the gut microbiota\'s favorable composition and functionality. Also, nutrient digestibility and gut fermentation patterns can be associated with specific microbial populations.
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  • 文章类型: Editorial
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  • 文章类型: Journal Article
    Alphabaculovirus是鳞翅目的致命dsDNA病毒,具有高度的遗传多样性,并在蛋白质闭塞体内以聚集体形式传播。这种传播方式对其作为生物杀虫剂的功效有影响。由于变体相互作用对混合变体闭塞体的杀虫特性的影响,包含9种基因型变体的尼加拉瓜斜纹夜蛾多核多角体病毒(SfMNPV-NIC)的尼加拉瓜分离株已成为大量研究的主题。作为对变体混合物的复制和传播的系统研究的一部分,基于定量PCR技术(qPCR),开发了一种准确定量选择基因型变异的工具.首先,引物对在四个变体中的高变异性区域周围设计,命名为SfNic-A,SfNic-B,SfNic-C和SfNic-E产生103-150bp的扩增子。然后,使用克隆的纯化扩增子作为标准,在每个靶标108-101个拷贝的动态范围内证实了扩增.该测定是有效的(平均值±SD:98.5±0.8%),可重复,如低的测定间和测定内变异系数(<5%)所示,并且对靶变体具有特异性(跨变体的99.7-100%特异性)。在基因型特异性扩增子的混合物上验证了定量方法,并证明了准确的定量。最后,基于出芽病毒体的混合物和从闭塞来源的病毒体中提取的DNA的混合物,对4种变体的混合物进行了定量.在这两种情况下,通过定量存在于所有变体中的多角体蛋白(polh)基因,混合变体制剂与总病毒基因组数量相比具有优势。该技术在阐明变异多样性对该病原体的传播和杀虫特性的影响方面应被证明是无价的。
    Alphabaculoviruses are lethal dsDNA viruses of Lepidoptera that have high genetic diversity and are transmitted in aggregates within proteinaceous occlusion bodies. This mode of transmission has implications for their efficacy as biological insecticides. A Nicaraguan isolate of Spodoptera frugiperda multiple nucleopolyhedrovirus (SfMNPV-NIC) comprising nine genotypic variants has been the subject of considerable study due to the influence of variant interactions on the insecticidal properties of mixed-variant occlusion bodies. As part of a systematic study on the replication and transmission of variant mixtures, a tool for the accurate quantification of a selection of genotypic variants was developed based on the quantitative PCR technique (qPCR). First, primer pairs were designed around a region of high variability in four variants named SfNic-A, SfNic-B, SfNic-C and SfNic-E to produce amplicons of 103-150 bp. Then, using cloned purified amplicons as standards, amplification was demonstrated over a dynamic range of 108-101 copies of each target. The assay was efficient (mean ± SD: 98.5 ± 0.8%), reproducible, as shown by low inter- and intra-assay coefficients of variation (<5%), and specific to the target variants (99.7-100% specificity across variants). The quantification method was validated on mixtures of genotype-specific amplicons and demonstrated accurate quantification. Finally, mixtures of the four variants were quantified based on mixtures of budded virions and mixtures of DNA extracted from occlusion-derived virions. In both cases, mixed-variant preparations compared favorably to total viral genome numbers by quantification of the polyhedrin (polh) gene that is present in all variants. This technique should prove invaluable in elucidating the influence of variant diversity on the transmission and insecticidal characteristics of this pathogen.
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    背景:观察性研究的证据表明,肺癌筛查(LCS)指南对肺癌(LC)的低诊断率很高,尽管目前的筛查指南已经更新,筛查的资格标准也已经扩大,没有研究比较中国人群中LCS指南的效率。
    方法:在2005年至2022年之间,在我们机构使用低剂量计算机断层扫描(LDCT)筛查了31,394名无症状个体。收集人口统计学数据和相关LC危险因素。每个指导标准的LCS效率表示为效率比(ER)。包容率,合格率,LC检测率,并根据ER的不同合格标准对4个指南进行了比较分析。四个指南如下:中国肺癌筛查和早期发现指南(CGSL),国家综合癌症网络(NCCN)美国预防服务工作队(USPSTF),和国际早期肺癌行动计划(I-ELCAP)。
    结果:在31,394名参与者中,298(155名妇女,143名男性)被诊断为LC。对于CGSL,NCCN,USPSTF,和I-ELCAP指南,准则的合格率为13.92%,6.97%,6.81%,和53.46%;资格标准的ERe为1.46%,1.64%,1.51%,和1.13%,分别是;对于包容率,他们是19.0%,9.5%,9.3%,73.0%,分别。符合CGSL筛选标准的LC,NCCN,USPSTF,I-ELCAP指南为29.2%,16.4%,14.8%,和86.6%,分别。CGSL的年龄和吸烟标准更严格,因此导致符合筛查标准的LC比率较低。CGSL,NCCN,USPSTF指南显示,45-49岁年龄组的漏诊率最高(17.4%),而I-ELCAP指南显示35-39岁年龄组的漏诊率最高(3.0%)。根据四个指南的标准,男性和女性的资格显着不同(P<0.001)。
    结论:I-ELCAP指南对男性和女性的合格率最高。但是对于指南认为合格的人,其实际效率比率最低。而NCCN指南对于那些被指南认为符合条件的人具有最高的ERe值。
    BACKGROUND: Evidence from observational studies indicates that lung cancer screening (LCS) guidelines with high rates of lung cancer (LC) underdiagnosis, and although current screening guidelines have been updated and eligibility criteria for screening have been expanded, there are no studies comparing the efficiency of LCS guidelines in Chinese population.
    METHODS: Between 2005 and 2022, 31,394 asymptomatic individuals were screened using low-dose computed tomography (LDCT) at our institution. Demographic data and relevant LC risk factors were collected. The efficiency of the LCS for each guideline criteria was expressed as the efficiency ratio (ER). The inclusion rates, eligibility rates, LC detection rates, and ER based on the different eligibility criteria of the four guidelines were comparatively analyzed. The four guidelines were as follows: China guideline for the screening and early detection of lung cancer (CGSL), the National Comprehensive Cancer Network (NCCN), the United States Preventive Services Task Force (USPSTF), and International Early Lung Cancer Action Program (I-ELCAP).
    RESULTS: Of 31,394 participants, 298 (155 women, 143 men) were diagnosed with LC. For CGSL, NCCN, USPSTF, and I-ELCAP guidelines, the eligibility rates for guidelines were 13.92%, 6.97%, 6.81%, and 53.46%; ERe for eligibility criteria were 1.46%, 1.64%, 1.51%, and 1.13%, respectively; and for the inclusion rates, they were 19.0%, 9.5%, 9.3%, and 73.0%, respectively. LCs which met the screening criteria of CGSL, NCCN, USPSTF, and I-ELCAP guidelines were 29.2%, 16.4%, 14.8%, and 86.6%, respectively. The age and smoking criteria for CGSL were stricter, hence resulting in lower rates of LC meeting the screening criteria. The CGSL, NCCN, and USPSTF guidelines showed the highest underdiagnosis in the 45-49 age group (17.4%), while the I-ELCAP guideline displayed the highest missed diagnosis rate (3.0%) in the 35-39 age group. Males and females significantly differed in eligibility based on the criteria of the four guidelines (P < 0.001).
    CONCLUSIONS: The I-ELCAP guideline has the highest eligibility rate for both males and females. But its actual efficiency ratio for those deemed eligible by the guideline was the lowest. Whereas the NCCN guideline has the highest ERe value for those deemed eligible by the guideline.
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