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Revalidation of a prognostic score model based on complete blood count for nasopharyngeal carcinoma through a prospective study 被引量:4
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作者 Xiaohui Li Hui Chang +5 位作者 Yalan Tao Xiaohui Wang Jin Gao Wenwen Zhang Chen Chen Yunfei Xia 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 2016年第5期467-477,共11页
Objective: In our previous work, we incorporated complete blood count (CBC) into TNM stage to develop a new prognostic score model, which was validated to improve prediction efficiency of TNM stage for nasopharynge... Objective: In our previous work, we incorporated complete blood count (CBC) into TNM stage to develop a new prognostic score model, which was validated to improve prediction efficiency of TNM stage for nasopharyngeal carcinoma (NPC). The purpose of this study was to revalidate the accuracy of the model, and its superiority to TNM stage, through data from a prospective study.Methods: CBC of 249 eligible patients from the 863 Program No. 2006AA02Z4B4 was evaluated. Prognostic index (PI) of each patient was calculated according to the score model. Then they were divided by the PI into three categories: the low-, intermediate-and high-risk patients. The 5-year disease-specific survival (DSS) of the three categories was compared by a log-rank test. The model and TNM stage (Tth edition) were compared on efficiency for predicting the 5-year DSS, through comparison of the area under curve (AUC) of their receiver-operating characteristic curves.Results: The 5-year DSS of the low-, intermediate- and high-risk patients were 96.0%, 79.1% and 62.2%, respectively. The low- and intermediate-risk patients had better DSS than the high-risk patients (P〈0.001 and P〈0.005, respectively). And there was a trend of better DSS in the low-risk patients, compared with the intermediate-risk patients (P=0.049). The AUC of the model was larger than that of TNM stage (0.726 vs. 0.661, P:0.023). Conclusions: A CBC-based prognostic score model was revalidated to be accurate and superior to TNM stage on predicting 5-year DSS of NPC. 展开更多
关键词 Complete blood count score model revalidadon disease-specific survival nasopharyngeal carcinoma
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A risk prediction score model for predicting occurrence of post-PCI vasovagal reflex syndrome: a single center study in Chinese population 被引量:3
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作者 Hai-Yan LI Yu-Tao GUO +4 位作者 Cui TIAN Chao-Qun SONG Yang MU Yang LI Yun-Dai CHEN 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2017年第8期509-514,共6页
Background The vasovagal reflex syndrome (VVRS) is common in the patiems undergoing percutaneous coronary intervemion (PCI) However, prediction and prevention of the risk for the VVRS have not been completely fulf... Background The vasovagal reflex syndrome (VVRS) is common in the patiems undergoing percutaneous coronary intervemion (PCI) However, prediction and prevention of the risk for the VVRS have not been completely fulfilled. This study was conducted to develop a Risk Prediction Score Model to identify the determinants of VVRS in a large Chinese population cohort receiving PCI. Methods From the hos- pital electronic medical database, we idemified 3550 patients who received PCI (78.0% males, mean age 60 years) in Chinese PLA General Hospital from January 1, 2000 to August 30, 2016. The multivariate analysis and receiver operating characteristic 01OC) analysis were performed. Results The adverse events of VVRS in the patients were significantly increased after PCI procedure than before the operation (all P 〈 0.001). The rate of VVRS [95% confidence interval (CI)] in patients receiving PCI was 4.5% (4.1%-5.6%). Compared to the patients suffering no VVRS, incidence of VVRS involved the following factors, namely female gender, primary PCI, hypertension, over two stems im- plantation in the left anterior descending (LAD), and the femoral puncture site. The multivariate analysis suggested that they were independ- ent risk factors for predicting the incidence of VVRS (all P 〈 0.001). We developed a risk prediction score model for VVRS. ROC analysis showed that the risk prediction score model was effectively predictive of the incidence of VVRS in patients receiving PCI (c-statistic 0.76, 95% CI: 0.72-0.79, P 〈 0.001). There were decreased evems of VVRS in the patients receiving PCI whose diastolic blood pressure dropped by more than 30 mmHg and heart rate reduced by 10 times per minute (AUC: 0.84, 95% CI: 0.81-0.87, P 〈 0.001). Conclusion The risk prediction score is quite efficient in predicting the incidence of VVRS in patients receiving PCI. In which, the following factors may be in- volved, the femoral puncture site, female gender, hypertension, primary PCI, and over 2 stents implanted in LAD. 展开更多
关键词 Post-percutaneous coronary intervention Risk prediction score model Vasovagal reflex syndrome
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Nomograms and risk score models for predicting survival in rectal cancer patients with neoadjuvant therapy 被引量:8
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作者 Fang-Ze Wei Shi-Wen Mei +6 位作者 Jia-Nan Chen Zhi-Jie Wang Hai-Yu Shen Juan Li Fu-Qiang Zhao Zheng Liu Qian Liu 《World Journal of Gastroenterology》 SCIE CAS 2020年第42期6638-6657,共20页
BACKGROUND Colorectal cancer is a common digestive cancer worldwide.As a comprehensive treatment for locally advanced rectal cancer(LARC),neoadjuvant therapy(NT)has been increasingly used as the standard treatment for... BACKGROUND Colorectal cancer is a common digestive cancer worldwide.As a comprehensive treatment for locally advanced rectal cancer(LARC),neoadjuvant therapy(NT)has been increasingly used as the standard treatment for clinical stage II/III rectal cancer.However,few patients achieve a complete pathological response,and most patients require surgical resection and adjuvant therapy.Therefore,identifying risk factors and developing accurate models to predict the prognosis of LARC patients are of great clinical significance.AIM To establish effective prognostic nomograms and risk score prediction models to predict overall survival(OS)and disease-free survival(DFS)for LARC treated with NT.METHODS Nomograms and risk factor score prediction models were based on patients who received NT at the Cancer Hospital from 2015 to 2017.The least absolute shrinkage and selection operator regression model were utilized to screen for prognostic risk factors,which were validated by the Cox regression method.Assessment of the performance of the two prediction models was conducted using receiver operating characteristic curves,and that of the two nomograms was conducted by calculating the concordance index(C-index)and calibration curves.The results were validated in a cohort of 65 patients from 2015 to 2017.RESULTS Seven features were significantly associated with OS and were included in the OS prediction nomogram and prediction model:Vascular_tumors_bolt,cancer nodules,yN,body mass index,matchmouth distance from the edge,nerve aggression and postoperative carcinoembryonic antigen.The nomogram showed good predictive value for OS,with a C-index of 0.91(95%CI:0.85,0.97)and good calibration.In the validation cohort,the C-index was 0.69(95%CI:0.53,0.84).The risk factor prediction model showed good predictive value.The areas under the curve for 3-and 5-year survival were 0.811 and 0.782.The nomogram for predicting DFS included ypTNM and nerve aggression and showed good calibration and a C-index of 0.77(95%CI:0.69,0.85).In the validation cohort,the C-index was 0.71(95%CI:0.61,0.81).The prediction model for DFS also had good predictive value,with an AUC for 3-year survival of 0.784 and an AUC for 5-year survival of 0.754.CONCLUSION We established accurate nomograms and prediction models for predicting OS and DFS in patients with LARC after undergoing NT. 展开更多
关键词 Neoadjuvant therapy Rectal cancer NOMOGRAM Overall survival Diseasefree survival Risk factor score prediction model
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Score model for predicting acute-on-chronic liver failure risk in chronic hepatitis B 被引量:6
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作者 Fang-Yuan Gao Yao Liu +10 位作者 Xiao-Shu Li Xie-Qiong Ye Le Sun Ming-Fan Geng Rui Wang Hui-Min Liu Xiao-Bing Zhou Li-Li Gu Yan-Min Liu Gang Wan Xian-Bo Wang 《World Journal of Gastroenterology》 SCIE CAS 2015年第27期8373-8381,共9页
AIM: To establish a clinical scoring model to predict risk of acute-on-chronic liver failure(ACLF) in chronic hepatitis B(CHB) patients.METHODS: This was a retrospective study of 1457 patients hospitalized for CHB bet... AIM: To establish a clinical scoring model to predict risk of acute-on-chronic liver failure(ACLF) in chronic hepatitis B(CHB) patients.METHODS: This was a retrospective study of 1457 patients hospitalized for CHB between October 2008 and October 2013 at the Beijing Ditan Hospital, Capital Medical University, China. The patients were divided into two groups: severe acute exacerbation(SAE) group(n = 382) and non-SAE group(n = 1075). The SAE group was classified as the high-risk group based on the higher incidence of ACLF in this group than in the non-SAE group(13.6% vs 0.4%). Two-thirds of SAE patients were randomly assigned to risk-model derivation and the other one-third to model validation. Univariate risk factors associated with the outcome were entered into a multivariate logistic regression model for screening independent risk factors. Each variable was assigned an integer value based on the regression coefficients, and the final score was the sum of these values in the derivation set. Model discrimination and calibration were assessed using area under the receiver operating characteristic curve and the Hosmer-Lemeshow test. RESULTS: The risk prediction scoring model includedthe following four factors: age ≥ 40 years, total bilirubin ≥ 171 μmol/L, prothrombin activity 40%-60%, and hepatitis B virus DNA > 107 copies/m L. The sum risk score ranged from 0 to 7; 0-3 identified patients with lower risk of ACLF, whereas 4-7 identified patients with higher risk. The Kaplan-Meier analysis showed the cumulative risk for ACLF and ACLF-related death in the two risk groups(0-3 and 4-7 scores) of the primary cohort over 56 d, and log-rank test revealed a significant difference(2.0% vs 33.8% and 0.8% vs 9.4%, respectively; both P < 0.0001). In the derivation and validation data sets, the model had good discrimination(C index = 0.857, 95% confidence interval: 0.800-0.913 and C index = 0.889, 95% confidence interval: 0.820-0.957, respectively) and calibration demonstrated by the Hosmer-Lemeshow test(χ2 = 4.516, P = 0.808 and χ2 = 1.959, P = 0.923, respectively).CONCLUSION: Using the scoring model, clinicians can easily identify patients(total score ≥ 4) at high risk of ACLF and ACLF-related death early during SAE. 展开更多
关键词 Acute-on-chronic LIVER failure Chronichepatitis B Prediction model RISK score SEVERE acuteexacerbation
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基于Z-score模型的A企业财务风险分析 被引量:1
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作者 李文莹 《商业观察》 2025年第3期44-47,共4页
企业要想实现长远发展,应全面了解自身财务状况,以提高应对风险的能力。文章通过偿债能力、盈利能力、营运能力、发展能力等财务指标来分析A企业在筹资、投资、营运方面存在的风险,以Z-score模型为基础,利用A企业2017—2023年的财务数据... 企业要想实现长远发展,应全面了解自身财务状况,以提高应对风险的能力。文章通过偿债能力、盈利能力、营运能力、发展能力等财务指标来分析A企业在筹资、投资、营运方面存在的风险,以Z-score模型为基础,利用A企业2017—2023年的财务数据,分析X变量和Z值的变动情况,对企业风险的整体状况加以综合衡量,进一步评估其财务风险的波动性。最后,在对财务风险进行识别与评价的前提下,结合企业所处的内外部环境以及本身的资本结构,提出了相应的应对措施,包括制定战略规划、完善内部监督机制、调整股权结构与治理方式等,来帮助企业应对风险,并为同行业企业提供参考。 展开更多
关键词 Z-score模型 风险识别 财务风险
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Construction of CD8^(+)T cell-associated Risk Model in Hepatocellular Carcinoma Based on Bulk and Single-cell RNA-seq Data
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作者 ZHANG Xin-Tong ZHU Jian-Jun +10 位作者 WU Jin WU Hao LU Fan ZHANG Wen-Tao CHANG Jing-Jia TANG Ting OU Zhi-Gao JIA Feng-Feng LI Li YU Peng-Fei LIU Ming 《中国生物化学与分子生物学报》 北大核心 2025年第10期1511-1528,共18页
Hepatocellular carcinoma(HCC),which is essentially primary liver cancer,is closely related to CD8^(+)T cell immune infiltration and immune suppression.We constructed a CD8^(+)T cells related risk score model to predic... Hepatocellular carcinoma(HCC),which is essentially primary liver cancer,is closely related to CD8^(+)T cell immune infiltration and immune suppression.We constructed a CD8^(+)T cells related risk score model to predict the prognosis of HCC patients and provided therapeutic guidance based on the risk score.Using integrated bulk RNA sequencing(RNA-seq)and single-cell RNA sequencing(scRNA-seq)datasets,we identified stable CD8^(+)T cell signatures.Based on these signatures,a 3-gene risk score model,comprised of KLRB1,RGS 2,and TNFRSF1B was constructed.The risk score model was well validated through an independent external validation cohort.We divided patients into high-risk and low-risk groups according to the risk score and compared the differences in immune microenvironment between these two groups.Compared with low-risk patients,high-risk patients have higher M2-type macrophage content(P<0.0001)and lower CD8^(+)T cells infiltration(P<0.0001).High-risk patients predict worse response to immunotherapy treatment than low-risk patients(P<0.01).Drug sensitivity analysis shows that PI3K-β inhibitor AZD6482 and TGFβRII inhibitor SB505124 may be suitable therapies for high-risk patients,while the IGF-1R inhibitor BMS-754807 or the novel pyrimidine-based anti-tumor metabolic drug Gemcitabine could be potential therapeutic choices for low-risk patients.Moreover,expression of these 3-gene model was verified by immunohistochemistry.In summary,the establishment and validation of a CD8^(+)T cell-derived risk model can more accurately predict the prognosis of HCC patients and guide the construction of personalized treatment plans. 展开更多
关键词 hepatocellular carcinoma(HCC) CD8^(+)T cell risk scoring model tumor immunity drug sensitivity
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基于Model-X Knockoffs的非概率样本与概率样本模型推断研究
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作者 刘展 王典妮 +1 位作者 江志高 潘莹丽 《数理统计与管理》 北大核心 2025年第6期1006-1018,共13页
大数据下的样本大多为非概率样本,同时随着无回答率不断上升,概率样本的目标变量可能缺失,当两个样本的协变量较多甚至是高维时,如何结合非概率样本与概率样本推断总体值得探索。针对此问题,提出基于Model-X Knockofs的非概率样本与概... 大数据下的样本大多为非概率样本,同时随着无回答率不断上升,概率样本的目标变量可能缺失,当两个样本的协变量较多甚至是高维时,如何结合非概率样本与概率样本推断总体值得探索。针对此问题,提出基于Model-X Knockofs的非概率样本与概率样本的模型推断方法。首先,基于非概率样本建立超总体模型预测概率样本缺失的目标变量。然后,将两个样本结合建立倾向得分模型估计非概率样本单元的入样概率,并采用倾向得分逆加权方法估计预测误差。对于较多协变量或高维情况,为了选择变量并控制变量选择的错误发现率,使用Model-X Knockoffs对超总体模型和倾向得分模型分别进行变量选择与参数估计。最后,将预测后的概率样本与估计的预测误差结合,获得总体的估计。模拟研究与实证分析结果表明:在偏差、标准差与均方误差方面,提出的估计与Oracle估计非常接近,且比插补法估计更小,估计效果较好;在超总体模型与倾向得分模型中,利用Model-X Knockofs进行变量选择的错误发现率均控制在给定水平以下且变量选择正确的比率基本保持在0.9以上,变量选择的效果较好。 展开更多
关键词 非概率样本 概率样本 超总体模型 倾向得分模型 model-X Knockoffs
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MITRE ATT&CK-Driven Threat Analysis for Edge-IoT Environment and a Quantitative Risk Scoring Model
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作者 Tae-hyeon Yun Moohong Min 《Computer Modeling in Engineering & Sciences》 2025年第11期2707-2731,共25页
The dynamic,heterogeneous nature of Edge computing in the Internet of Things(Edge-IoT)and Industrial IoT(IIoT)networks brings unique and evolving cybersecurity challenges.This study maps cyber threats in Edge-IoT/IIoT... The dynamic,heterogeneous nature of Edge computing in the Internet of Things(Edge-IoT)and Industrial IoT(IIoT)networks brings unique and evolving cybersecurity challenges.This study maps cyber threats in Edge-IoT/IIoT environments to the Adversarial Tactics,Techniques,and Common Knowledge(ATT&CK)framework by MITRE and introduces a lightweight,data-driven scoring model that enables rapid identification and prioritization of attacks.Inspired by the Factor Analysis of Information Risk model,our proposed scoring model integrates four key metrics:Common Vulnerability Scoring System(CVSS)-based severity scoring,Cyber Kill Chain–based difficulty estimation,Deep Neural Networks-driven detection scoring,and frequency analysis based on dataset prevalence.By aggregating these indicators,the model generates comprehensive risk profiles,facilitating actionable prioritization of threats.Robustness and stability of the scoring model are validated through non-parametric correlation analysis using Spearman’s and Kendall’s rank correlation coefficients,demonstrating consistent performance across diverse scenarios.The approach culminates in a prioritized attack ranking that provides actionable guidance for risk mitigation and resource allocation in Edge-IoT/IIoT security operations.By leveraging real-world data to align MITRE ATT&CK techniques with CVSS metrics,the framework offers a standardized and practically applicable solution for consistent threat assessment in operational settings.The proposed lightweight scoring model delivers rapid and reliable results under dynamic cyber conditions,facilitating timely identification of attack scenarios and prioritization of response strategies.Our systematic integration of established taxonomies with data-driven indicators strengthens practical risk management and supports strategic planning in next-generation IoT deployments.Ultimately,this work advances adaptive threat modeling for Edge/IIoT ecosystems and establishes a robust foundation for evidence-based prioritization in emerging cyber-physical infrastructures. 展开更多
关键词 MITRE ATT&CK edge environment IOT threat analysis quantitative analysis deep neural network CVSS risk assessment scoring model
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Modified scoring model incorporating waist-hip ratio for predicting advanced colorectal neoplasia
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作者 Zhong-Hui Liu Zong-Lin Cai +4 位作者 Xiao-Jun Tong Yang-Yang Sun Xin-Yu Zhuang Xue-Fei Yang Joe KM Fan 《World Journal of Clinical Oncology》 2025年第5期79-89,共11页
BACKGROUND Designing a feasible risk prediction model for advanced colorectal neoplasia(ACN)can enhance colonoscopy screening efficiency.Abdominal obesity is associated with colorectal cancer development.AIM To propos... BACKGROUND Designing a feasible risk prediction model for advanced colorectal neoplasia(ACN)can enhance colonoscopy screening efficiency.Abdominal obesity is associated with colorectal cancer development.AIM To propose and evaluate a modified scoring model incorporating waist-hip ratio for the prediction of ACN.METHODS A total of 6483 patients who underwent their first screening or diagnostic colonoscopy in our center between 2020 and 2023 were recruited,in which 4592 were in the derivation cohort and 1891 formed a validation cohort.Multivariate logistic regression was used to investigate the risk factors of ACN in the derivation cohort based on endoscopic findings,and a new scoring model for ACN prediction was developed.The discriminatory capability of the scoring model was validated by the validation cohort.RESULTS Age,male gender,smoking,and wait-to-hip ratio were identified as independent risk factors for ACN,and a 7-point scoring model was developed.The prevalence of ACN was 3.3%,9.3%and 18.5%in participants with scores of 0-2[low risk(LR)],3–4[moderate risk(MR)],and 5–7[high risk(HR)],respectively,in the derivation cohort.With the scoring model,49.9%,38.4%,and 11.7%of patients in the validation cohort were categorized as LR,MR,and HR,respectively.The corresponding prevalence rates of ACN were 5.0%,10.3%,and 17.6%,respectively.The C-statistic of the new scoring model was 0.66,which was higher than that of the Asia-Pacific Colorectal Screening model(0.63).CONCLUSION A modified scoring model incorporating waist-hip ratio has an improved predictive performance in the prediction of ACN. 展开更多
关键词 Advanced colorectal neoplasia Abdominal obesity Colorectal cancer screening Risk scoring model Metabolic syndrome
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Modified predictive model incorporating the waist-to-hip ratio for advanced colorectal neoplasia:A step toward precision screening
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作者 Zong-Xian Zhao Zong-Ju Hu 《World Journal of Clinical Oncology》 2025年第9期1-5,共5页
This editorial discusses an article by Liu et al,which focuses on the development and evaluation of a modified scoring model incorporating the waist-to-hip ratio for predicting advanced colorectal neoplasia(ACN).This ... This editorial discusses an article by Liu et al,which focuses on the development and evaluation of a modified scoring model incorporating the waist-to-hip ratio for predicting advanced colorectal neoplasia(ACN).This editorial provides an overview of the study,including the background of ACN risk prediction,the study design,key findings,and the significance and limitations of the new model.The study identified independent risk factors for ACN and developed a 7-point scoring model with better predictive performance than existing models.However,challenges,such as generalizability across ethnic groups and selection bias,exist.Further research involving multi-ethnic cohorts and the integration of novel biomarkers is needed to improve the model and its clinical application. 展开更多
关键词 Advanced colorectal neoplasia Abdominal obesity Colorectal cancer screening Risk scoring model Waist-to-hip ratio
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基于Z-Score模型的宁德时代财务分析
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作者 袁宵 《现代工业经济和信息化》 2025年第4期196-198,201,共4页
由于新能源企业投资建设期较长,不稳定的市场环境容易使其公司财务陷入风险之中。以新能源行业领先企业宁德时代新能源科技股份公司为代表,选取其2019—2023年的财务数据,通过相关财务指标偿债能力、盈利能力和营运能力,分析企业财务数... 由于新能源企业投资建设期较长,不稳定的市场环境容易使其公司财务陷入风险之中。以新能源行业领先企业宁德时代新能源科技股份公司为代表,选取其2019—2023年的财务数据,通过相关财务指标偿债能力、盈利能力和营运能力,分析企业财务数据,利用Z-score模型分析企业财务风险,研究发现企业财务存在一定的风险,并提出相关建议。 展开更多
关键词 宁德时代 Z-score模型 财务风险
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基于Z-score模型光伏玻璃企业财务风险研究
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作者 贾长春 《商业观察》 2025年第26期70-73,78,共5页
文章旨在运用Z-score模型对光伏玻璃企业的财务风险进行研究。通过对光伏玻璃主要企业的财务数据进行分析,计算各企业的Z值,并根据Z值的大小评估其财务风险状况。研究结果表明,光伏玻璃行业内不同企业的财务风险存在显著差异,部分企业... 文章旨在运用Z-score模型对光伏玻璃企业的财务风险进行研究。通过对光伏玻璃主要企业的财务数据进行分析,计算各企业的Z值,并根据Z值的大小评估其财务风险状况。研究结果表明,光伏玻璃行业内不同企业的财务风险存在显著差异,部分企业面临较高的财务风险。同时,文章还探讨了影响光伏玻璃行业财务风险的主要因素,并提出了相应的风险防范建议,以期为企业的稳健发展提供参考。 展开更多
关键词 Z-score模型 光伏玻璃企业 财务风险
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Smaller & Smarter: Score-Driven Network Chaining of Smaller Language Models
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作者 Gunika Dhingra Siddansh Chawla +1 位作者 Vijay K. Madisetti Arshdeep Bahga 《Journal of Software Engineering and Applications》 2024年第1期23-42,共20页
With the continuous evolution and expanding applications of Large Language Models (LLMs), there has been a noticeable surge in the size of the emerging models. It is not solely the growth in model size, primarily meas... With the continuous evolution and expanding applications of Large Language Models (LLMs), there has been a noticeable surge in the size of the emerging models. It is not solely the growth in model size, primarily measured by the number of parameters, but also the subsequent escalation in computational demands, hardware and software prerequisites for training, all culminating in a substantial financial investment as well. In this paper, we present novel techniques like supervision, parallelization, and scoring functions to get better results out of chains of smaller language models, rather than relying solely on scaling up model size. Firstly, we propose an approach to quantify the performance of a Smaller Language Models (SLM) by introducing a corresponding supervisor model that incrementally corrects the encountered errors. Secondly, we propose an approach to utilize two smaller language models (in a network) performing the same task and retrieving the best relevant output from the two, ensuring peak performance for a specific task. Experimental evaluations establish the quantitative accuracy improvements on financial reasoning and arithmetic calculation tasks from utilizing techniques like supervisor models (in a network of model scenario), threshold scoring and parallel processing over a baseline study. 展开更多
关键词 Large Language models (LLMs) Smaller Language models (SLMs) FINANCE NETWORKING Supervisor model Scoring Function
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Comparison of different severity scores in correlating hemoglobin levels with the severity of hepatic decompensation: An observational study
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作者 Himayat Ullah Sarwat Huma +13 位作者 Ghulam Yasin Muhammad Ashraf Nafisa Tahir Qazi Tahir Uddin Hossam Shabana Mostafa A R Hussein Abdulrahman Shalaby Mohammad Mossaad Alsayyad Ashraf Said Ali Farahat Hani Ismail Hamed Hazem Sayed Ahmed Ayoub Mohammed S Imam Essam Elmahdi 《World Journal of Hepatology》 2025年第1期55-63,共9页
BACKGROUND Chronic liver disease is a growing global health problem,leading to hepatic decompensation characterized by an array of clinical and biochemical complic-ations.Several scoring systems have been introduced i... BACKGROUND Chronic liver disease is a growing global health problem,leading to hepatic decompensation characterized by an array of clinical and biochemical complic-ations.Several scoring systems have been introduced in assessing the severity of hepatic decompensation with the most frequent ones are Child-Pugh score,model of end-stage liver disease(MELD)score,and MELD-Na score.Anemia is frequently observed in cirrhotic patients and is linked to worsened clinical outcomes.Although studies have explored anemia in liver disease,few have investigated the correlation of hemoglobin level with the severity of hepatic decompensation.AIM To determine the relationship between hemoglobin levels and the severity of decompensated liver disease and comparing the strength of this correlation using the Child-Pugh,MELD,and MELD-Na scores.METHODS This cross-sectional study was conducted at a tertiary care hospital with 652 decompensated liver disease patients enrolled in the study.Data was collected on demographics,clinical history,and laboratory findings,including hemoglobin levels,bilirubin,albumin,prothrombin time(international normalized ratio),sodium,and creatinine.The Child-Pugh,MELD,and MELD-Na scores were calculated.Statistical analysis was performed using Statistical Package for the Social Sciences version 26,and correlations between hemoglobin levels and severity scores were assessed using Spearman's correlation coefficient.RESULTS The study included 405 males(62.1%)and 247 females(37.9%)with an average age of 58.8 years.Significant inverse correlations were found between hemoglobin levels and Child-Pugh,MELD,and MELD-Na scores(P<0.01),with the MELD scoring system being the strongest correlator among all.One-way analysis of variance revealed significant differences in hemoglobin levels across the severity groups of each scoring system(P=0.001).Tukey's post hoc analysis confirmed significant internal differences among each severity group.CONCLUSION Understanding the correlation between hemoglobin and liver disease severity can improve patient management by offering insights into prognosis and guiding treatment decisions. 展开更多
关键词 Hepatic decompensation Hemoglobin level Chronic liver disease Child Turcotte Pugh score model of end-stage liver disease score model of end-stage liver disease-Na score
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A risk score model for predicting cardiac rupture after acute myocardial infarction 被引量:23
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作者 Yuan Fu Kui-Bao Li Xin-Chun Yang 《Chinese Medical Journal》 SCIE CAS CSCD 2019年第9期1037-1044,共8页
Background:Cardiac rupture (CR) is a major lethal complication of acute myocardial infarction (AMI).However,no valid risk score model was found to predict CR after AMI in previous researches.This study aimed to establ... Background:Cardiac rupture (CR) is a major lethal complication of acute myocardial infarction (AMI).However,no valid risk score model was found to predict CR after AMI in previous researches.This study aimed to establish a simple model to assess risk of CR after AMI,which could be easily used in a clinical environment.Methods:This was a retrospective case-control study that included 53 consecutive patients with CR after AMI during a period from January 1,2010 to December 31,2017.The controls included 524 patients who were selected randomly from 7932 AMI patients without CR at a 1:10 ratio.Risk factors for CR were identified using univariate analysis and multivariate logistic regression.Risk score model was developed based on multiple regression coefficients.Performance of risk model was evaluated using receiveroperating characteristic (ROC) curves and internal validity was explored using bootstrap analysis.Results:Among all 7985 AMI patients,53 (0.67%) had CR (free wall rupture,n=39;ventricular septal rupture,n=14).Hospital mortalities were 92.5% and 4.01% in patients with and without CR (P<0.001).Independent variables associated with CR included:older age,female gender,higher heart rate at admission,body mass index (BMI)<25 kg/m^2,lower left ventricular ejection fraction (LVEF) and no primary percutaneous coronary intervention (pPCI) treatment.In ROC analysis,our CR risk assess model demonstrated a very good discriminate power (area under the curve [AUC]= 0.895,95% confidence interval:0.845–0.944,optimism-corrected AUC= 0.821,P<0.001).Conclusion:This study developed a novel risk score model to help predict CR after AMI,which had high accuracy and was very simple to use. 展开更多
关键词 Acute MYOCARDIAL INFARCTION Mechanical complications Cardiac RUPTURE Risk score model Primary PERCUTANEOUS coronary intervention
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Relationship between model for end-stage liver disease score and left ventricular function in patients with end-stage liver disease 被引量:7
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作者 Fu-Rong Sun,Ying Wang,Bing-Yuan Wang,Jing Tong,Dai Zhang and Bing Chang Department of Gastroenterology,First Affiliated Hospital, China Medical University,Shenyang 110001,China 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2011年第1期50-54,共5页
BACKGROUND:Decreased cardiac contractility has been observed in cirrhosis,suggesting a latent cardiomyopathy in these patients.This study was designed to evaluate left ventricular structure and function in patients wi... BACKGROUND:Decreased cardiac contractility has been observed in cirrhosis,suggesting a latent cardiomyopathy in these patients.This study was designed to evaluate left ventricular structure and function in patients with end-stage liver disease by the model for end-stage liver disease(MELD) scoring system. METHODS:We recruited 82 patients(72 male,10 female; mean age 50.3±8.9 years)with end-stage liver disease who underwent orthotopic liver transplantation between January 2002 and May 2008.Seventy-eight patients had cirrhosis and 4 had primary liver cancer.Patients were categorized into three groups on the basis of MELD score:≤9(27 patients, 33%);10-19(40,49%);and≥20(15,18%).The relationship between MELD score and cardiac structure and function was determined.Preoperative assessments of blood biochemistry, blood coagulation,serum virology,echocardiography and electrocardiography were performed. RESULTS:MELD score was positively correlated with enlarged left atrial diameter,increased interventricular septum thickness(IVST),increased aortic flow,corrected QT interval (QTc)extension and cardiac output(P=0.033,0.002,0.000, 0.000 and 0.009,respectively).International normalized ratio also had a correlation with the above parameters and enlarged left ventricular end-diastolic diameter(P=0.043,0.010,0.000, 0.001,0.016 and 0.008,respectively).Serum creatinine was positively correlated with IVST(r=0.257,P=0.020),but negatively correlated with early maximal ventricular filling velocity/late diastolic or atrial velocity ratio(r=-0.300, P=0.006).A difference of QTc>440 ms among the three groups was statistically significant(χ2=9.791,P=0.007).CONCLUSIONS:Abnormalities in cardiac structure and function are common in patients with end-stage liver disease. MELD score is a practically useful approach for the assessment of cardiac function in such patients. 展开更多
关键词 left ventricular dysfunction liver cirrhosis liver disease model for end-stage liver disease score
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Living donor liver transplantation for high model for endstage liver disease score:What have we learned? 被引量:3
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作者 Hany Dabbous Mohammad Sakr +4 位作者 Sara Abdelhakam Iman Montasser Mohamed Bahaa Hany Said Mahmoud El-Meteini 《World Journal of Hepatology》 CAS 2016年第22期942-948,共7页
AIM: To assess the impact of model for end-stage liver disease(MELD) score on patient survival and morbidity post living donor liver transplantation(LDLT). METHODS: A retrospective study was performed on 80 adult pati... AIM: To assess the impact of model for end-stage liver disease(MELD) score on patient survival and morbidity post living donor liver transplantation(LDLT). METHODS: A retrospective study was performed on 80 adult patients who had LDLT from 2011-2013. Nine patients were excluded and 71 patients were divided into two groups; Group 1 included 38 patients with a MELD score < 20, and Group 2 included 33 patients with a MELD score > 20. Comparison between both groups was done regarding operative time, intra-operative blood requirement, intensive care unit(ICU) and hospital stay, infection, and patient survival.RESULTS: Eleven patients died(15.5%); 3/38(7.9%)patients in Group 1 and 8/33(24.2%) in Group 2 with significant difference(P = 0.02). Mean operative time, duration of hospital stay, and ICU stay were similar in both groups. Mean volume of blood transfusion and cell saver re-transfusion were 8 ± 4 units and 1668 ± 202 m L, respectively, in Group 1 in comparison to 10 ± 6 units and 1910 ± 679 m L, respectively, in Group 2 with no significant difference(P = 0.09 and 0.167, respectively). The rates of infection and systemic complications(renal, respiratory, cardiovascular and neurological complications) were similar in both groups. CONCLUSION: A MELD score > 20 may predict mortality after LDLT. 展开更多
关键词 Living donor liver transplantation model for end-stage liver disease score MORBIDITY MORTALITY INFECTION
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Comparative study of indocyanine green-R15,Child-Pugh score,and model for end-stage liver disease score for prediction of hepatic encephalopathy after transjugular intrahepatic portosystemic shunt 被引量:5
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作者 Zhong Wang Yi-Fan Wu +5 位作者 Zhen-Dong Yue Hong-Wei Zhao Lei Wang Zhen-Hua Fan Yu Zhang Fu-Quan Liu 《World Journal of Gastroenterology》 SCIE CAS 2021年第5期416-427,共12页
BACKGROUND Hepatic encephalopathy(HE)remains an enormous challenge in patients who undergo transjugular intrahepatic portosystemic shunt(TIPS)implantation.The preoperative indocyanine green retention rate at 15 min(IC... BACKGROUND Hepatic encephalopathy(HE)remains an enormous challenge in patients who undergo transjugular intrahepatic portosystemic shunt(TIPS)implantation.The preoperative indocyanine green retention rate at 15 min(ICG-R15),as one of the liver function assessment tools,has been developed as a prognostic indicator in patients undergoing surgery,but there are limited data on its role in TIPS.AIM To determine whether the ICG-R15 can be used for prediction of post-TIPS HE in decompensated cirrhosis patients with portal hypertension(PHT)and compare the clinical value of ICG-R15,Child-Pugh score(CPS),and model for end-stage liver disease(MELD)score in predicting post-TIPS HE with PHT.METHODS This retrospective study included 195 patients with PHT who underwent elective TIPS at Beijing Shijitan Hospital from January 2018 to June 2019.All patients underwent the ICG-R15 test,CPS evaluation,and MELD scoring 1 wk before TIPS.According to whether they developed HE or not,the patients were divided into two groups:HE group and non-HE group.The prediction of one-year post-TIPS HE by ICG-R15,CPS and MELD score was evaluated by the areas under the receiver operating characteristic curves(AUCs).RESULTS A total of 195 patients with portal hypertension were included and 23%(45/195)of the patients developed post-TIPS HE.The ICG-R15 was identified as an independent predictor of post-TIPS HE.The AUCs for the ICG-R15,CPS,and MELD score for predicting post-TIPS HE were 0.664(95%confidence interval[CI]:0.557-0.743,P=0.0046),0.596(95%CI:0.508-0.679,P=0.087),and 0.641(95%CI:0.554-0.721,P=0.021),respectively.The non-parametric approach(Delong-Delong&Clarke-Pearson)showed that there was statistical significance in pairwise comparison between AUCs of ICG-R15 and MELD score(P=0.0229).CONCLUSION The ICG-R15 has appreciated clinical value for predicting the occurrence of post-TIPS HE and is a choice for evaluating the prognosis of patients undergoing TIPS. 展开更多
关键词 Hepatic encephalopathy Indocyanine green-R15 Child-Pugh score model for end-stage liver disease score Transjugular intrahepatic portosystemic shunt Portal hypertention
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Construction of a risk score prognosis model based on hepatocellular carcinoma microenvironment 被引量:4
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作者 Fa-Peng Zhang Yi-Pei Huang +4 位作者 Wei-Xin Luo Wan-Yu Deng Chao-Qun Liu Lei-Bo Xu Chao Liu 《World Journal of Gastroenterology》 SCIE CAS 2020年第2期134-153,共20页
BACKGROUND Hepatocellular carcinoma(HCC)is a common cancer with a poor prognosis.Previous studies revealed that the tumor microenvironment(TME)plays an important role in HCC progression,recurrence,and metastasis,leadi... BACKGROUND Hepatocellular carcinoma(HCC)is a common cancer with a poor prognosis.Previous studies revealed that the tumor microenvironment(TME)plays an important role in HCC progression,recurrence,and metastasis,leading to poor prognosis.However,the effects of genes involved in TME on the prognosis of HCC patients remain unclear.Here,we investigated the HCC microenvironment to identify prognostic genes for HCC.AIM To identify a robust gene signature associated with the HCC microenvironment to improve prognosis prediction of HCC.METHODS We computed the immune/stromal scores of HCC patients obtained from The Cancer Genome Atlas based on the ESTIMATE algorithm.Additionally,a risk score model was established based on Differentially Expressed Genes(DEGs)between high and lowimmune/stromal score patients.RESULTS The risk score model consisting of eight genes was constructed and validated in the HCC patients.The patients were divided into high-or low-risk groups.The genes(Disabled homolog 2,Musculin,C-X-C motif chemokine ligand 8,Galectin 3,B-cell-activating transcription factor,Killer cell lectin like receptor B1,Endoglin and adenomatosis polyposis coli tumor suppressor)involved in our risk score model were considered to be potential immunotherapy targets,and they may provide better performance in combination.Functional enrichment analysis showed that the immune response and T cell receptor signaling pathway represented the major function and pathway,respectively,related to the immune-related genes in the DEGs between high-and low-risk groups.The receiver operating characteristic(ROC)curve analysis confirmed the good potency of the risk score prognostic model.Moreover,we validated the risk score model using the International Cancer Genome Consortium and the Gene Expression Omnibus database.A nomogram was established to predict the overall survival of HCC patients.CONCLUSION The risk score model and the nomogram will benefit HCC patients through personalized immunotherapy. 展开更多
关键词 Hepatocellular carcinoma Prognostic model Immune related gene MICROENVIRONMENT Risk score Overall survival
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Rating Score Data Analysis by Classical Test Theory and Many-Facet Rasch Model
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作者 Tsai-Wei Huang Gwo-Jen Guo +1 位作者 William Loadman Fang-Mei Law 《Psychology Research》 2014年第3期222-231,共10页
关键词 h模型 多层面 数据分析 评价 测验 可靠性参数 教育评估 试题难度
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