Indices

指数
  • 文章类型: Journal Article
    本研究通过借鉴因子模型的大领域,开发了一种基于模型的索引方法,称为广义共享分量模型(GSCM)。所提出的完全贝叶斯方法适应了异方差模型误差,多个共享因素和灵活的空间先验。此外,与以前的索引方法不同,我们的模型提供了具有不确定性的指数。关注增加癌症风险的不健康行为,拟议的GSCM用于开发影响癌症行为的区域指数产品-代表澳大利亚第一个区域级别的癌症危险因素指数。这一进步有助于识别癌症风险升高的社区,促进有针对性的健康干预。
    This study develops a model-based index approach called the Generalised Shared Component Model (GSCM) by drawing on the large field of factor models. The proposed fully Bayesian approach accommodates heteroscedastic model error, multiple shared factors and flexible spatial priors. Moreover, unlike previous index approaches, our model provides indices with uncertainty. Focusing on unhealthy behaviors that increase the risk of cancer, the proposed GSCM is used to develop the Area Indices of Behaviors Impacting Cancer product - representing the first area level cancer risk factor index in Australia. This advancement aids in identifying communities with elevated cancer risk, facilitating targeted health interventions.
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  • 文章类型: Journal Article
    犬淋巴瘤是狗中最常见的造血系统癌症。许多研究已经评估了血液学异常和比率在患有淋巴瘤的人和狗中的预后价值。
    比较受淋巴瘤影响的狗群体与健康狗之间的血液学参数和全血细胞计数比率,以确定淋巴瘤的潜在预后标志物。
    这项回顾性病例对照研究比较了受多中心大B细胞淋巴瘤(LBCL)影响的114只狗和60只健康狗之间的血液学参数和全血细胞计数比。
    该研究发现LBCL犬和健康犬的血液学指标之间存在一些统计学上的显着差异,但是这些参数与接受麦迪逊威斯康星化疗方案治疗的78只狗的生存时间之间没有相关性。此外,血液学改变进行评估,如贫血,白细胞增多,和血小板减少症.
    血液学比值已被认为是犬LBCL的潜在预后标志物,但其真正的预后价值仍存在争议,需要进一步研究。
    UNASSIGNED: Canine lymphoma is the most common hematopoietic cancer in dogs. Numerous studies have evaluated the prognostic value of hematological abnormalities and ratios in both humans and dogs with lymphoma.
    UNASSIGNED: To compare hematological parameters and complete blood count ratios between a population of dogs affected by lymphoma and healthy dogs to identify potential prognostic markers for lymphoma.
    UNASSIGNED: This retrospective case-control study compares hematological parameters and complete blood count ratios between a population of 114 dogs affected by multicentric large B-cell lymphoma (LBCL) and 60 healthy dogs.
    UNASSIGNED: The study found several statistically significant differences between the hematological indices of LBCL dogs and healthy dogs, but no correlation between these parameters and the survival times of 78 dogs treated with chemotherapy Madison Wisconsin protocol. In addition, hematological alterations were evaluated such as anemia, leukocytosis, and thrombocytopenia.
    UNASSIGNED: Hematological ratios have been suggested as potential prognostic markers for canine LBCL but their real prognostic value remains controversial and requires future investigation.
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  • 文章类型: Editorial
    暂无摘要。
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  • 文章类型: English Abstract
    The subject of this article is the discovery of dento-dental disharmony (DDD) at the end of treatment. Lack of diagnosis is the source of this type of disappointment.
    The diagnosis of DDD is not easily accessible on clinical examination and the compensations it generates mask it, especially if it is associated with other dysmorphoses. The use of indices, the best-known of which is Bolton\'s, enables diagnosis with the setup, a pre-treatment model which also has many other prognostic interests.
    Once DDD has been considered, it can be resolved by adapting dental volumes, either by subtraction or addition.
    Advances in computerized diagnosis with artificial intelligence are opening up new avenues for the systematic diagnosis of DDD.
    L’objectif de cet article est de présenter, à l’issue de la découverte d’une dysharmonie dento-dentaire (DDD) en fin de traitement orthodontique, les modalités de sa prise en charge. Le défaut de diagnostic initial est la source de ce type de déconvenue.
    Le diagnostic de la DDD n’est pas facilement accessible à l’examen clinique, les compensations qu’elle génère la masquent, surtout si elle est associée à d’autres dysmorphoses. L’utilisation d’indices, dont le plus connu est celui de Bolton, permet le diagnostic avec le setup, maquette de prétraitement qui a aussi beaucoup d’autres intérêts pronostiques.
    Une fois prise en compte, la DDD trouve sa solution par l’adaptation des volumes dentaires soit par soustraction amélaire soit par addition.
    Les avancées du diagnostic informatisé avec l’intelligence artificielle ouvrent des portes pour intégrer le diagnostic systématique de la DDD.
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  • 文章类型: Journal Article
    背景:溶血是生物化学中未报告结果的常见原因,使用溶血指数(HI)进行测量,制造商为分析物设定了非报告限值。
    目的:为了验证钾的非报告HI限值,磷酸盐,镁,天冬氨酸转氨酶(AST),乳酸脱氢酶(LDH),铁,CA19-9和维生素D在BeckmanCoulterAU5800/DxI800分析仪上。
    方法:使用渗透压休克程序从EDTA衬里的全血试管中产生溶血产物。将溶血产物用盐水连续稀释,并掺入成对血清中。测量HI和分析物浓度的δ变化,使用回归分析进行评估,并与计算的参考变化值进行比较。
    结果:对于钾(y=0.8864x),观察到HI增加与分析物浓度增加之间的线性关系(R2>0.9),磷酸盐(y=0.1079x),镁(y=0.0678x),AST(y=29.035x),和LDH(y=350x)。增加HI值对铁没有线性影响(y=-0.2544x),CA19-9(y=2.7019x),或维生素D(y=8.036x)浓度。
    结论:该实验的结果支持将钾的HI非报告限值提高到100mg/dL;镁为200mg/dL;磷酸盐为300mg/dL,CA19-9和维生素D。铁测定不受高达500mg/dL的溶血的影响。目前50mg/dL的HI非报告限值适用于LDH。
    BACKGROUND: Hemolysis is a common reason for nonreporting results in biochemistry and is measured using the hemolysis index (HI), with nonreporting limits set for analytes by manufacturers.
    OBJECTIVE: To verify the nonreporting HI limit for potassium, phosphate, magnesium, aspartate aminotransferase (AST), lactate dehydrogenase (LDH), iron, CA19-9, and vitamin D on the Beckman Coulter AU5800/DxI800 analyzers.
    METHODS: Hemolysate was created from EDTA-lined tubes of whole blood using an osmotic shock procedure. The hemolysate underwent serial dilutions with saline and was spiked in paired serum. The delta changes in HI and analyte concentration were measured, assessed using regression analysis, and compared against calculated reference change values.
    RESULTS: A linear relationship between increasing HI and increasing analyte concentration (R2 > 0.9) was observed for potassium (y = 0.8864x), phosphate (y = 0.1079x), magnesium (y = 0.0678x), AST (y = 29.035x), and LDH (y = 350x). Increasing HI values did not have a linear effect on iron (y = -0.2544x), CA19-9 (y = 2.7019x), or vitamin D (y = 8.036x) concentrations.
    CONCLUSIONS: The results from this experiment support increasing the HI nonreporting limit to 100 mg/dL for potassium; 200 mg/dL for magnesium; and 300 mg/dL for phosphate, CA19-9, and vitamin D. The iron assay is not affected by hemolysis as high as 500 mg/dL. The current HI nonreporting limit of 50 mg/dL is appropriate for LDH.
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  • 文章类型: Journal Article
    基础数据分析有助于评估关键问题,以辨别基本事实并引出以前看不见的证据。在这篇文章中,我们提供了在COVID-19大流行期间在癌症发病率中观察到的一个微妙现象。我们分析了美国癌症协会的癌症发病率数据[1]。我们将数据分为三组:前COVID-19年(2017年、2018年),在COVID-19年(2019年、2020年、2021年),以及后COVID-19年(2022年、2023年)。以一种新颖的方式,我们应用主成分分析(PCA),计算癌症发病率向量之间的角度,然后在我们的分析中加入对数正态概率概念。我们的分析结果表明,癌症发病率在每个时代都发生了变化(前,during,andpost),癌症发病率在2020年发生了有意义的变化,这是COVID-19时代的高峰。我们定义,计算,并解释了癌症类型在未来一年中在乳腺癌中发生1000例的超额概率,子宫颈,结直肠,子宫体,白血病,肺和支气管,黑色素瘤,霍奇金淋巴瘤,前列腺,和泌尿系癌症。我们还定义了,估计,并从乳腺癌的有利位置说明了其他癌症诊断的指标,during,和后COVID-19时代。COVID-19后的角度向量比大流行前少72%,比大流行期间少28%。癌症媒介的运动在这些时代之间是动态的,和运动因癌症类型而异。宫颈癌趋势图显示2019年和2021年的统计异常。根据我们的发现,指出了今后的研究方向。
    Fundamental data analysis assists in the evaluation of critical questions to discern essential facts and elicit formerly invisible evidence. In this article, we provide clarity into a subtle phenomenon observed in cancer incidences throughout the time of the COVID-19 pandemic. We analyzed the cancer incidence data from the American Cancer Society [1]. We partitioned the data into three groups: the pre-COVID-19 years (2017, 2018), during the COVID-19 years (2019, 2020, 2021), and the post-COVID-19 years (2022, 2023). In a novel manner, we applied principal components analysis (PCA), computed the angles between the cancer incidence vectors, and then added lognormal probability concepts in our analysis. Our analytic results revealed that the cancer incidences shifted within each era (pre, during, and post), with a meaningful change in the cancer incidences occurring in 2020, the peak of the COVID-19 era. We defined, computed, and interpreted the exceedance probability for a cancer type to have 1000 incidences in a future year among the breast, cervical, colorectal, uterine corpus, leukemia, lung & bronchus, melanoma, Hodgkin\'s lymphoma, prostate, and urinary cancers. We also defined, estimated, and illustrated indices for other cancer diagnoses from the vantage point of breast cancer in pre, during, and post-COVID-19 eras. The angle vectors post the COVID-19 were 72% less than pre-pandemic and 28% less than during the pandemic. The movement of cancer vectors was dynamic between these eras, and movement greatly differed by type of cancer. A trend chart of cervical cancer showed statistical anomalies in the years 2019 and 2021. Based on our findings, a few future research directions are pointed out.
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  • 文章类型: Journal Article
    为了识别美国铅暴露风险热点,我们从已发表的密歇根州案例研究中扩展了地理空间统计方法。使用五个铅指数对确定的热点进行评估,根据住房年龄和社会人口统计数据,与9份公共卫生部门报告中确定的高风险地点(45-78%)以及来自密歇根州和俄亥俄州的儿童血铅数据热点(例如,科恩的卡帕得分为0.49-0.63)。将地理空间聚类分析和第80-100百分位数方法应用于铅指数,美国人口普查区域的数量范围从8%(指数的交叉)到41%(指数的组合)。对居住在这些人口普查区中的6岁以下儿童数量的分析显示,各州(例如,伊利诺伊州,密歇根州,新泽西,纽约,俄亥俄州,宾夕法尼亚,马萨诸塞州,加州,德克萨斯州)和潜在铅暴露风险最高的县。结果支持使用可用的铅指数作为替代,以在没有一致的情况下确定位置,全美国的全血铅水平(BLL)数据。用当地知识进行实地调查,额外的BLL数据,和环境数据是必要的,以改善识别和分析铅暴露和BLL热点的干预措施。随着科学的发展,这些筛查结果可以为针对铅行动的“更深入的潜水”分析提供信息。
    To identify U.S. lead exposure risk hotspots, we expanded upon geospatial statistical methods from a published Michigan case study. The evaluation of identified hotspots using five lead indices, based on housing age and sociodemographic data, showed moderate-to-substantial agreement with state-identified higher-risk locations from nine public health department reports (45-78%) and with hotspots of children\'s blood lead data from Michigan and Ohio (e.g., Cohen\'s kappa scores of 0.49-0.63). Applying geospatial cluster analysis and 80th-100th percentile methods to the lead indices, the number of U.S. census tracts ranged from ∼8% (intersection of indices) to ∼41% (combination of indices). Analyses of the number of children <6 years old living in those census tracts revealed the states (e.g., Illinois, Michigan, New Jersey, New York, Ohio, Pennsylvania, Massachusetts, California, Texas) and counties with highest potential lead exposure risk. Results support use of available lead indices as surrogates to identify locations in the absence of consistent, complete blood lead level (BLL) data across the United States. Ground-truthing with local knowledge, additional BLL data, and environmental data is needed to improve identification and analysis of lead exposure and BLL hotspots for interventions. While the science evolves, these screening results can inform \"deeper dive\" analyses for targeting lead actions.
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  • 文章类型: Journal Article
    在紧急医疗状况的初步诊断期间,其中包括急性传染病,尽快评估患者临床状态的严重程度非常重要。与个体生化或生理指标不同,推导出的指数可以更好地将复杂综合征描述为一组症状,因此迅速采取了一套适当的措施。最近,我们报道了含有丁酰胆碱酯酶(BChE)活性的新型诊断指标,在COVID-19患者中下降。此外,在这些患者中,血管性血友病因子(vWF)的分泌增加,导致微血管床上的血栓形成。这项研究的目的是确定COVID-19患者vWF的浓度和活性,并寻找新的诊断指标。主要目标之一是比较某些个体和新得出的指标的预后值。回顾性地将COVID-19患者分为两组:幸存者(n=77)和死亡(n=24)。根据临床症状和计算机断层扫描(CT)结果,病程以中度为主.入院时采集了第一份血样(第一点),第二个样本(第二点)-入院后4-6天内。随着生化指标的标准光谱,BChE活性(BChEa或BChEb用于乙酰硫代胆碱或丁酰硫代胆碱,分别),丙二醛(MDA),和vWF分析(其抗原水平,AGFW,和它的活动,确定ActWF)并得出新的诊断指标。汇集的敏感性,特异性,和接收器工作曲线下面积(AUC),计算似然比(LR)和赔率比(OR)。死亡组的vWF抗原水平比幸存者组高1.5倍。包括vWF抗原水平的指标优于使用vWF活性的指标。发现指数[Urea]×[AGWF]×1000/(BChEb×[ALB])预测COVID-19死亡率的判别力最好(AUC=0.91[0.83,1.00],p<0.0001;OR=72.0[7.5,689],p=0.0002)。此外,[尿素]×1000/(BChEb×[ALB])是死亡率的良好预测因子(AUC=0.95[0.89,1.00],p<0.0001;OR=31.5[3.4,293],p=0.0024)。[尿素]×[AGWF]×1000/(BChEb×[ALB])指数是COVID-19感染相关死亡率的最佳预测指标,其次是[尿素]×1000/(BChEb×[ALB])。在后续队列中验证后,这两个指数可以推荐给诊断实验室。
    During the initial diagnosis of urgent medical conditions, which include acute infectious diseases, it is important to assess the severity of the patient\'s clinical state as quickly as possible. Unlike individual biochemical or physiological indicators, derived indices make it possible to better characterize a complex syndrome as a set of symptoms, and therefore quickly take a set of adequate measures. Recently, we reported on novel diagnostic indices containing butyrylcholinesterase (BChE) activity, which is decreased in COVID-19 patients. Also, in these patients, the secretion of von Willebrand factor (vWF) increases, which leads to thrombosis in the microvascular bed. The objective of this study was the determination of the concentration and activity of vWF in patients with COVID-19, and the search for new diagnostic indices. One of the main objectives was to compare the prognostic values of some individual and newly derived indices. Patients with COVID-19 were retrospectively divided into two groups: survivors (n = 77) and deceased (n = 24). According to clinical symptoms and computed tomography (CT) results, the course of disease was predominantly moderate in severity. The first blood sample (first point) was taken upon admission to the hospital, the second sample (second point)-within 4-6 days after admission. Along with the standard spectrum of biochemical indicators, BChE activity (BChEa or BChEb for acetylthiocholin or butyrylthiocholin, respectively), malondialdehyde (MDA), and vWF analysis (its antigen level, AGFW, and its activity, ActWF) were determined and new diagnostic indices were derived. The pooled sensitivity, specificity, and area under the receiver operating curve (AUC), as well as Likelihood ratio (LR) and Odds ratio (OR) were calculated. The level of vWF antigen in the deceased group was 1.5-fold higher than the level in the group of survivors. Indices that include vWF antigen levels are superior to indices using vWF activity. It was found that the index [Urea] × [AGWF] × 1000/(BChEb × [ALB]) had the best discriminatory power to predict COVID-19 mortality (AUC = 0.91 [0.83, 1.00], p < 0.0001; OR = 72.0 [7.5, 689], p = 0.0002). In addition, [Urea] × 1000/(BChEb × [ALB]) was a good predictor of mortality (AUC = 0.95 [0.89, 1.00], p < 0.0001; OR = 31.5 [3.4, 293], p = 0.0024). The index [Urea] × [AGWF] × 1000/(BChEb × [ALB]) was the best predictor of mortality associated with COVID-19 infection, followed by [Urea] × 1000/(BChEb × [ALB]). After validation in a subsequent cohort, these two indices could be recommended for diagnostic laboratories.
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  • 文章类型: Journal Article
    综合指数已被广泛用于对国家的环境绩效进行排名。这种环境指数可用于将复杂的信息作为单一价值传达,并有可能引起政治和媒体对环境问题的认识。然而,构造差,或沟通不良的指数,可能会阻碍识别环境缺陷的努力,现有环境指数之间的排名差异很大。这里,我们对现有环境指数的概念框架和方法选择进行了审查,以增强我们对其准确性和适用性的理解。在本研究中,我们根据现有的全球指数的概念框架(包括指数的目标和指标集)和构建方法的选择(例如,加权和聚合)。我们研究了概念框架和方法的差异如何产生更多的,或更少,对一个国家的环境持乐观态度。我们的结果表明:(1)多维环境指数与与人类健康和福利或政策相关的指标呈正相关;(2)仅环境指数彼此呈正相关或根本不相关;(3)多维指数与仅环境指数彼此呈负相关或根本不相关。这表明所包含的概念框架和指标可能会影响一个国家在不同环境指数中的排名。我们的结果强调,在选择现有环境指数或制定新的环境指数时,重要的是评估概念框架(和相关指标)和方法选择是否适合正在衡量和报告的现象。这一点很重要,因为在环境指数中纳入混杂指标可能会对一个国家的环境质量产生误导。
    Composite indices have been widely used to rank the environmental performance of nations. Such environmental indices can be useful in communicating complex information as a single value and have the potential to generate political and media awareness of environmental issues. However, poorly constructed, or poorly communicated indices, can hinder efforts to identify environmental failings, and there are considerable differences in rank among existing environmental indices. Here, we provide a review of the conceptual frameworks and methodological choices used for existing environmental indices to enhance our understanding of their accuracy and applicability. In the present study, we review existing global indices according to their conceptual framework (objectives of the index and set of indicators included) and methodological choices made in their construction (e.g., weighting and aggregation). We examine how differences in conceptual frameworks and methodology may yield a more, or less, optimistic view of a country\'s environment. Our results indicate that (1) multidimensional environmental indices with indicators related to human health and welfare or policy are positively correlated; (2) environment-only indices are positively correlated with one another or are not correlated at all; (3) multidimensional indices and environment-only indices are negatively correlated with each other or are not correlated at all. This indicates that the conceptual frameworks and indicators included may influence a country\'s rank among different environmental indices. Our results highlight that, when choosing an existing environmental index-or developing a new one-it is important to assess whether the conceptual framework (and associated indicators) and methodological choices are appropriate for the phenomenon being measured and reported on. This is important because the inclusion of confounding indicators in environmental indices may provide a misleading view of the quality of a country\'s environment.
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  • 文章类型: Journal Article
    我们调查了六个预后指标的预测能力[Karnofsky表现状态(KPS),造血细胞移植特异性合并症指数(HCT-CI),疾病风险指数(DRI),欧洲骨髓移植(EBMT)和修订的移植前死亡率评估(rPAM)得分和内皮激活和应激指数(EASIX)]在205名成年人中接受基于环磷酰胺(PTCy)的移植后allo-HCT。KPS,HCT-CI,DRI和EASIX将患者分为高危和低危。KPS和EASIX在allo-HCT后的前2年内保持了对OS预测的适当区分[受试者工作特征曲线(曲线下面积(AUC)>55%)]。移植后DRI和HCT-CI的辨别能力增加,预测峰值在2年(AUC为61.1%和61.8%)。rPAM的最大判别能力为1年(1年AUC为58.2%)。未证明EBMT评分的预测能力。本研究验证了KPS操作系统预测的判别能力,基于PTCy的allo-HCT中的HCT-CI、DRI和EASIX。
    We investigated the predictive capacity of six prognostic indices [Karnofsky Performance Status (KPS), Hematopoietic Cell Transplant-Specific Comorbidity Index (HCT-CI), Disease Risk Index (DRI), European Bone Marrow Transplantation (EBMT) and Revised Pre-Transplantation Assessment of Mortality (rPAM) Scores and Endothelial Activation and Stress Index (EASIX)] in 205 adults undergoing post-transplant cyclophosphamide (PTCy)-based allo-HCT. KPS, HCT-CI, DRI and EASIX grouped patients into higher and lower risk strata. KPS and EASIX maintained appropriate discrimination for OS prediction across the first 2 years after allo-HCT [receiver operating characteristic curve (area under the curve (AUC) > 55 %)]. The discriminative capacity of DRI and HCT-CI increased during the post-transplant period, with a peak of prediction at 2 years (AUC of 61.1 % and 61.8 %). The maximum rPAM discriminative capacity was at 1 year (1-year AUC of 58.2 %). The predictive capacity of the EBMT score was not demonstrated. This study validates the discrimination capacity for OS prediction of KPS, HCT-CI, DRI and EASIX in PTCy-based allo-HCT.
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