Early prediction

早期预测
  • 文章类型: Journal Article
    3型心肾综合征(CRS3型)引发急性肾损伤(AKI)引起的急性心脏损伤,增加AKI患者的死亡率。我们旨在确定CRS类型3的风险因素并开发预测列线图。
    在这项回顾性研究中,805名肾内科收治的AKI患者,山西医科大学第二医院于2017年1月1日至2021年12月31日,分为研究队列(2017.1.1-2021.6.30的406例患者,其中CRS3型63例)和验证队列(2021年7月1日至2021年12月31日的126例患者,其中CRS3型22例)。通过逻辑回归确定的CRS类型3的风险因素,为预测列线图的构建提供了信息。通过曲线下面积(AUC)评估其性能和准确性,校准曲线和决策曲线分析,通过验证队列进一步验证。
    列线图包括6个危险因素:年龄(OR=1.03;95CI=1.009-1.052;p=0.006),心血管疾病(CVD)病史(OR=2.802;95CI=1.193-6.582;p=0.018),平均动脉压(MAP)(OR=1.033;95CI=1.012-1.054;p=0.002),血红蛋白(OR=0.973;95CI=0.96--0.987;p<0.001),同型半胱氨酸(OR=1.05;95CI=1.03-1.069;p<0.001),AKI阶段[(阶段1:参考),(阶段2:OR=5.427;95CI=1.781-16.534;p=0.003),(阶段3:OR=5.554;95CI=2.234-13.805;p<0.001)]。列线图表现出优异的预测性能,在研究队列中AUC为0.907,在验证队列中AUC为0.892。校准和决策曲线分析维持了其准确性和临床实用性。
    我们开发了预测AKI患者CRS3型的列线图,纳入6个危险因素:年龄,CVD病史,MAP,血红蛋白,同型半胱氨酸,和AKI阶段,加强早期风险识别和患者管理。
    UNASSIGNED: Type 3 cardiorenal syndrome (CRS type 3) triggers acute cardiac injury from acute kidney injury (AKI), raising mortality in AKI patients. We aimed to identify risk factors for CRS type 3 and develop a predictive nomogram.
    UNASSIGNED: In this retrospective study, 805 AKI patients admitted at the Department of Nephrology, Second Hospital of Shanxi Medical University from 1 January 2017, to 31 December 2021, were categorized into a study cohort (406 patients from 2017.1.1-2021.6.30, with 63 CRS type 3 cases) and a validation cohort (126 patients from 1 July 2021 to 31 Dec 2021, with 22 CRS type 3 cases). Risk factors for CRS type 3, identified by logistic regression, informed the construction of a predictive nomogram. Its performance and accuracy were evaluated by the area under the curve (AUC), calibration curve and decision curve analysis, with further validation through a validation cohort.
    UNASSIGNED: The nomogram included 6 risk factors: age (OR = 1.03; 95%CI = 1.009-1.052; p = 0.006), cardiovascular disease (CVD) history (OR = 2.802; 95%CI = 1.193-6.582; p = 0.018), mean artery pressure (MAP) (OR = 1.033; 95%CI = 1.012-1.054; p = 0.002), hemoglobin (OR = 0.973; 95%CI = 0.96--0.987; p < 0.001), homocysteine (OR = 1.05; 95%CI = 1.03-1.069; p < 0.001), AKI stage [(stage 1: reference), (stage 2: OR = 5.427; 95%CI = 1.781-16.534; p = 0.003), (stage 3: OR = 5.554; 95%CI = 2.234-13.805; p < 0.001)]. The nomogram exhibited excellent predictive performance with an AUC of 0.907 in the study cohort and 0.892 in the validation cohort. Calibration and decision curve analyses upheld its accuracy and clinical utility.
    UNASSIGNED: We developed a nomogram predicting CRS type 3 in AKI patients, incorporating 6 risk factors: age, CVD history, MAP, hemoglobin, homocysteine, and AKI stage, enhancing early risk identification and patient management.
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  • 文章类型: Journal Article
    背景:在接受经皮冠状动脉介入治疗(PCI)的急性心肌梗死(AMI)患者中,主要不良心血管事件(MACE)的发生率仍然很高,缺乏早期预测模型来指导其临床管理。
    目的:本研究旨在为接受PCI的新诊断AMI患者开发基于机器学习的早期MACE预测模型。
    方法:将2018年1月至2019年12月接受PCI的1531例AMI患者纳入该连续队列。数据包括人口统计特征,临床调查,实验室测试,和疾病相关事件。四种机器学习模型-人工神经网络(ANN),k-最近的邻居,支持向量机,和随机森林-被开发并与逻辑回归模型进行比较。我们的主要结果是预测MACE的模型性能,这是由准确性决定的,接收器工作特性曲线下的面积,和F1得分。
    结果:总计,1362例患者均获得成功随访。中位随访时间为25.9个月,MACEs的发生率为18.5%(252/1362).ANN的接收器工作特性曲线下的面积,随机森林,k-最近的邻居,支持向量机,Logistic回归模型为80.49%,72.67%,79.80%,77.20%,和71.77%,分别。ANN模型前5位预测因子为左心室射血分数,植入支架的数量,年龄,糖尿病,以及冠状动脉疾病的血管数量。
    结论:ANN模型对AMI患者PCI术后MACE预测效果良好。基于机器学习的预测模型的使用可以改善临床实践中的患者管理和结果。
    BACKGROUND: The incidence of major adverse cardiovascular events (MACEs) remains high in patients with acute myocardial infarction (AMI) who undergo percutaneous coronary intervention (PCI), and early prediction models to guide their clinical management are lacking.
    OBJECTIVE: This study aimed to develop machine learning-based early prediction models for MACEs in patients with newly diagnosed AMI who underwent PCI.
    METHODS: A total of 1531 patients with AMI who underwent PCI from January 2018 to December 2019 were enrolled in this consecutive cohort. The data comprised demographic characteristics, clinical investigations, laboratory tests, and disease-related events. Four machine learning models-artificial neural network (ANN), k-nearest neighbors, support vector machine, and random forest-were developed and compared with the logistic regression model. Our primary outcome was the model performance that predicted the MACEs, which was determined by accuracy, area under the receiver operating characteristic curve, and F1-score.
    RESULTS: In total, 1362 patients were successfully followed up. With a median follow-up of 25.9 months, the incidence of MACEs was 18.5% (252/1362). The area under the receiver operating characteristic curve of the ANN, random forest, k-nearest neighbors, support vector machine, and logistic regression models were 80.49%, 72.67%, 79.80%, 77.20%, and 71.77%, respectively. The top 5 predictors in the ANN model were left ventricular ejection fraction, the number of implanted stents, age, diabetes, and the number of vessels with coronary artery disease.
    CONCLUSIONS: The ANN model showed good MACE prediction after PCI for patients with AMI. The use of machine learning-based prediction models may improve patient management and outcomes in clinical practice.
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  • 文章类型: Journal Article
    背景:低出生体重(LBW)是新生儿发病和死亡的主要原因,并增加不同生命阶段的各种疾病风险。以前已经开发了LBW的预测模型,但有局限性,包括小样本量,缺乏遗传因素,也没有将新生儿分为早产和足月出生组。在这项研究中,我们对基于环境和遗传因素的早产和足月出生组的LBW早期预测模型的发展提出了挑战,并阐明了LBW预测的影响变量。
    方法:我们选择了22,711例新生儿,他们的21,581名母亲和8,593名父亲来自东北医疗兆银行项目出生和三代队列研究。建立早产和足月出生组LBW的早期预测模型。我们使用生活方式的遗传和环境因素训练了基于AI的模型。然后,我们阐明了在足月和早产组中预测LBW的有影响的环境和遗传因素。
    结果:我们确定了2,327(10.22%)LBW新生儿,包括1,077例早产和1,248例足月分娩。我们的早期预测模型存档了长期LBW和早产LBW模型的曲线下面积0.96和0.95,分别。我们发现,在术语LBW模型中,有关饮食习惯和与胎儿生长相关的遗传特征的环境因素对预测LBW有影响。另一方面,我们发现,在早产LBW模型中,与toll样受体调节和感染反应相关的基因组特征是预测的影响遗传因素.
    结论:我们基于足月出生组的生活方式因素和早产组的遗传因素开发了LBW的精确早期预测模型。由于其准确性和通用性,我们的预测模型有助于妊娠早期LBW风险评估和足月分娩组LBW风险控制.我们的预测模型还可以根据早产组中的遗传因素对LBW进行精确预测。然后,我们确定了怀孕期间影响LBW预测的父母遗传和母亲环境因素,这是了解LBW以解决新生儿终生健康的严重负担的主要目标。
    BACKGROUND: Low birth weight (LBW) is a leading cause of neonatal morbidity and mortality, and increases various disease risks across life stages. Prediction models of LBW have been developed before, but have limitations including small sample sizes, absence of genetic factors and no stratification of neonate into preterm and term birth groups. In this study, we challenged the development of early prediction models of LBW based on environmental and genetic factors in preterm and term birth groups, and clarified influential variables for LBW prediction.
    METHODS: We selected 22,711 neonates, their 21,581 mothers and 8,593 fathers from the Tohoku Medical Megabank Project Birth and Three-Generation cohort study. To establish early prediction models of LBW for preterm birth and term birth groups, we trained AI-based models using genetic and environmental factors of lifestyles. We then clarified influential environmental and genetic factors for predicting LBW in the term and preterm groups.
    RESULTS: We identified 2,327 (10.22%) LBW neonates consisting of 1,077 preterm births and 1,248 term births. Our early prediction models archived the area under curve 0.96 and 0.95 for term LBW and preterm LBW models, respectively. We revealed that environmental factors regarding eating habits and genetic features related to fetal growth were influential for predicting LBW in the term LBW model. On the other hand, we identified that genomic features related to toll-like receptor regulations and infection reactions are influential genetic factors for prediction in the preterm LBW model.
    CONCLUSIONS: We developed precise early prediction models of LBW based on lifestyle factors in the term birth group and genetic factors in the preterm birth group. Because of its accuracy and generalisability, our prediction model could contribute to risk assessment of LBW in the early stage of pregnancy and control LBW risk in the term birth group. Our prediction model could also contribute to precise prediction of LBW based on genetic factors in the preterm birth group. We then identified parental genetic and maternal environmental factors during pregnancy influencing LBW prediction, which are major targets for understanding the LBW to address serious burdens on newborns\' health throughout life.
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  • 文章类型: Journal Article
    当检测到败血症时,器官损伤可能已经发展到不可逆转的阶段,导致预后不良。使用机器学习早期预测脓毒症已经显示出了希望,然而,缺少国际验证。
    这是一个回顾,观察,多中心队列研究。我们开发并外部验证了一种用于预测重症监护病房(ICU)败血症的深度学习系统。我们的分析代表了第一个国际,ICU内多中心队列研究使用深度学习进行脓毒症预测。我们的数据集包含136,478个独特的ICU入院,代表四个大型ICU数据库的完善和协调子集,其中包括从美国ICU收集的数据,荷兰,和瑞士在2001年至2016年之间。使用国际共识定义Sepsis-3,我们得出了每小时解决的败血症注释,总计25,694(18.8%)例患者因脓毒症住院。我们将我们的方法与临床基线以及机器学习基线进行了比较,并在数据库内和跨数据库进行了广泛的内部和外部统计验证。受试者工作特征曲线(AUC)下的报告面积。
    站点的平均值,我们的模型能够预测脓毒症的AUC为0.846(95%置信区间[CI],0.841-0.852)在每个站点内部的持续验证队列中,在跨站点进行外部验证时,AUC为0.761(95%CI,0.746-0.770)。允许访问一个小的微调集(每个站点10%),向靶位点的转移改善至AUC为0.807(95%CI,0.801-0.813).我们的模型在每个真实警报中提出1.4个错误警报,并在脓毒症发作前3.7h(95%CI,3.0-4.3)检测到80%的脓毒症患者,为干预打开一个至关重要的窗口。
    通过在实时预测场景的回顾性模拟中监测临床和实验室测量结果,用于检测脓毒症的深度学习系统,推广到以前从未见过的ICU队列,国际上。
    本研究由ETH领域的个性化健康及相关技术(PHRT)战略重点领域资助。
    UNASSIGNED: When sepsis is detected, organ damage may have progressed to irreversible stages, leading to poor prognosis. The use of machine learning for predicting sepsis early has shown promise, however international validations are missing.
    UNASSIGNED: This was a retrospective, observational, multi-centre cohort study. We developed and externally validated a deep learning system for the prediction of sepsis in the intensive care unit (ICU). Our analysis represents the first international, multi-centre in-ICU cohort study for sepsis prediction using deep learning to our knowledge. Our dataset contains 136,478 unique ICU admissions, representing a refined and harmonised subset of four large ICU databases comprising data collected from ICUs in the US, the Netherlands, and Switzerland between 2001 and 2016. Using the international consensus definition Sepsis-3, we derived hourly-resolved sepsis annotations, amounting to 25,694 (18.8%) patient stays with sepsis. We compared our approach to clinical baselines as well as machine learning baselines and performed an extensive internal and external statistical validation within and across databases, reporting area under the receiver-operating-characteristic curve (AUC).
    UNASSIGNED: Averaged over sites, our model was able to predict sepsis with an AUC of 0.846 (95% confidence interval [CI], 0.841-0.852) on a held-out validation cohort internal to each site, and an AUC of 0.761 (95% CI, 0.746-0.770) when validating externally across sites. Given access to a small fine-tuning set (10% per site), the transfer to target sites was improved to an AUC of 0.807 (95% CI, 0.801-0.813). Our model raised 1.4 false alerts per true alert and detected 80% of the septic patients 3.7 h (95% CI, 3.0-4.3) prior to the onset of sepsis, opening a vital window for intervention.
    UNASSIGNED: By monitoring clinical and laboratory measurements in a retrospective simulation of a real-time prediction scenario, a deep learning system for the detection of sepsis generalised to previously unseen ICU cohorts, internationally.
    UNASSIGNED: This study was funded by the Personalized Health and Related Technologies (PHRT) strategic focus area of the ETH domain.
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  • 文章类型: Journal Article
    背景:Lenvatinib广泛用于治疗不可切除和晚期甲状腺癌。我们旨在确定在lenvatinib治疗开始后1周进行18F-氟脱氧葡萄糖(FDG)正电子发射断层扫描/计算机断层扫描(PET/CT)是否可以预测治疗结果。
    结果:这是一个前瞻性的,非随机化,多中心研究。经病理证实的分化型甲状腺癌(DTC)和放射性碘治疗难治性病变的患者符合纳入条件。患者以24mglenvatinib作为初始剂量进行治疗,并在治疗开始后1周进行PET/CT检查。至少4周后安排对比增强CT作为评估的金标准。主要终点是评估PET/CT获得的最大标准化摄取值(SUVmax)与对比增强CT获得的区别能力。使用接受者工作特征(ROC-AUC)曲线下面积进行评价。21名患者纳入本分析。受试者工作特征(ROC)曲线分析在lenvatinib治疗1周后,SUVmax的AUC为0.714。SUVmax治疗反应的最佳临界值为15.211。该临界值的敏感性和特异性分别为0.583和0.857。低于临界值的患者的中位无进展生存期为26.3个月,超过临界值的患者为19.7个月(P=0.078)。
    结论:由于PET/CT上FDG摄取减少,lenvatinib的治疗效果比CT更早。lenvatinib治疗开始后1周的PET/CT检查可以预测DTC患者的治疗结果。
    背景:该试验于6月6日在大学医院医学信息网络(UMIN)临床试验注册中心(编号UMIN000022592)注册,2016年。
    BACKGROUND: Lenvatinib is widely used to treat unresectable and advanced thyroid carcinomas. We aimed to determine whether 18F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) performed 1 week after lenvatinib treatment initiation could predict treatment outcomes.
    RESULTS: This was a prospective, nonrandomised, multicentre study. Patients with pathologically confirmed differentiated thyroid carcinoma (DTC) and lesions refractory to radioiodine treatment were eligible for inclusion. Patients were treated with 24 mg lenvatinib as the initial dose and underwent PET/CT examination 1 week after treatment initiation. Contrast-enhanced CT was scheduled at least 4 weeks later as the gold standard for evaluation. The primary endpoint was to evaluate the discrimination power of maximum standardised uptake value (SUVmax) obtained by PET/CT compared to that obtained by contrast-enhanced CT. Evaluation was performed using the area under the receiver operating characteristic (ROC-AUC) curve. Twenty-one patients were included in this analysis. Receiver operating characteristic (ROC) curve analysis yielded an AUC of 0.714 for SUVmax after 1 week of lenvatinib treatment. The best cut-off value for the treatment response for SUVmax was 15.211. The sensitivity and specificity of this cut-off value were 0.583 and 0.857, respectively. The median progression-free survival was 26.3 months in patients with an under-cut-off value and 19.7 months in patients with an over-cut-off value (P = 0.078).
    CONCLUSIONS: The therapeutic effects of lenvatinib were detected earlier than those of CT because of decreased FDG uptake on PET/CT. PET/CT examination 1 week after the initiation of lenvatinib treatment may predict treatment outcomes in patients with DTC.
    BACKGROUND: This trial was registered in the University Hospital Medical Information Network (UMIN) Clinical Trials Registry (number UMIN000022592) on 6 June, 2016.
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  • 文章类型: Multicenter Study
    嵌合抗原受体T(CAR-T)细胞疗法在诱导血液恶性肿瘤的完全缓解方面非常有效。严重细胞因子释放综合征(CRS)是该疗法最重要且危及生命的不良反应。这项多中心研究在中国的六家医院进行。训练队列包括87例多发性骨髓瘤(MM)患者,一个包含59例MM患者的外部验证队列和另一个包含68例急性淋巴细胞白血病(ALL)或非霍奇金淋巴瘤(NHL)患者的外部验证队列.使用CAR-T细胞输注后第1-2天45种细胞因子的水平和患者的临床特征来形成列线图。制作了一个列线图,包括CX3CL1、GZMB、IL4、IL6和PDGFAA。根据培训队列,列线图中预测重度CRS的偏倚校正AUC为0.876(95%CI=0.871~0.882).AUC在两个外部验证队列中都是稳定的(MM,AUC=0.907,95%CI=0.899-0.916;ALL/NHL,AUC=0.908,95%CI=0.903-0.913)。在所有队列中,校准图(表观和偏差校正)与理想线重叠。我们开发了一个列线图,可以预测哪些患者在危重之前可能发展为严重的CRS,提高我们对CRS生物学的理解,并可能指导未来的细胞因子定向治疗。
    Chimeric antigen receptor T (CAR-T) cell therapy is highly effective in inducing complete remission in haematological malignancies. Severe cytokine release syndrome (CRS) is the most significant and life-threatening adverse effect of this therapy. This multi-centre study was conducted at six hospitals in China. The training cohort included 87 patients with multiple myeloma (MM), an external validation cohort of 59 patients with MM and another external validation cohort of 68 patients with acute lymphoblastic leukaemia (ALL) or non-Hodgkin lymphoma (NHL). The levels of 45 cytokines on days 1-2 after CAR-T cell infusion and clinical characteristics of patients were used to develop the nomogram. A nomogram was developed, including CX3CL1, GZMB, IL4, IL6 and PDGFAA. Based on the training cohort, the nomogram had a bias-corrected AUC of 0.876 (95% CI = 0.871-0.882) for predicting severe CRS. The AUC was stable in both external validation cohorts (MM, AUC = 0.907, 95% CI = 0.899-0.916; ALL/NHL, AUC = 0.908, 95% CI = 0.903-0.913). The calibration plots (apparent and bias-corrected) overlapped with the ideal line in all cohorts. We developed a nomogram that can predict which patients are likely to develop severe CRS before they become critically ill, improving our understanding of CRS biology, and may guide future cytokine-directed therapies.
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  • 文章类型: Multicenter Study
    背景:吻合口漏(AL)是直肠癌手术后常见的并发症之一。这项研究旨在评估生物标志物的组合,以早期预测术后有症状的AL。
    方法:一项前瞻性队列研究评估了2021年11月1日至2022年5月1日接受腹腔镜低位前切除术(LapLAR)患者的血清和腹膜生物标志物。进行多变量惩罚逻辑回归以探索P值<1的独立生物标志物,并使用受试者工作特征(ROC)曲线分析曲线下面积(AUC),灵敏度,和独立生物标志物的特异性。基于独立的生物标志物建立症状性AL的预测模型,并用列线图可视化。进一步应用具有一致性指数(c指数)的校准曲线来评估预测模型的功效。
    结果:本研究共纳入157例患者,7例(4.5%)被诊断为有症状的AL。术后第1天的C反应蛋白/白蛋白比(CAR)和术后第3天的全身免疫炎症指数(SII)和腹膜白介素6(IL-6)被证明是早期预测的独立预测因子。症状性AL。CAR的最佳截止值,SII,和腹膜IL-6分别为1.04、916.99和26430.09pg/ml,分别。最后,列线图,包括这些预测因子,成立了,该列线图的c指数为0.812,表明该列线图可用于潜在的临床参考。
    结论:CAR的组合,SII,和腹膜IL-6可能有助于LapLAR后患者症状性AL的早期预测。鉴于本研究的局限性和其他新型生物标志物的出现,多中心前瞻性研究值得进一步探索。
    Anastomotic leakage (AL) is one of the common complications after rectal cancer surgery. This study aimed to evaluate the combination of biomarkers for the early prediction of symptomatic AL after surgery.
    A prospective cohort study evaluated the serum and peritoneal biomarkers of patients who underwent laparoscopic low anterior resection (Lap LAR) from November 1, 2021, to May 1, 2022. Multivariate-penalized logistic regression was performed to explore the independent biomarker with a P-value <.1, and receiver operating characteristic (ROC) curve was used to analyze the area under the curve (AUC), sensitivity, and specificity of the independent biomarkers. A predictive model for symptomatic AL was built based on the independent biomarkers and was visualized with a nomogram. The calibration curve with the concordance index (c-index) was further applied to evaluate the efficacy of the predictive model.
    A total of 157 patients were included in this study, and 7 (4.5%) were diagnosed with symptomatic AL. C-reactive protein/album ratio (CAR) on postoperative day 1 and systemic immune-inflammation index (SII) and peritoneal interleukin-6 (IL-6) on postoperative day 3 were proven to be independent predictors for the early prediction of symptomatic AL. The optimal cutoff values of CAR, SII, and peritoneal IL-6 were 1.04, 916.99, and 26430.09 pg/ml, respectively. Finally, the nomogram, including these predictors, was established, and the c-index of this nomogram was 0.812, indicating that the nomogram could be used for potential clinical reference.
    The combination of CAR, SII, and peritoneal IL-6 might contribute to the early prediction of symptomatic AL in patients following Lap LAR. Given the limitations of this study and the emergence of other novel biomarkers, multicenter prospective studies are worthy of further exploration.
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  • 文章类型: Journal Article
    目的:妊娠期糖尿病(GDM)是一种以碳水化合物不耐受为特征的疾病,其在妊娠期间在胎盘激素的影响下发展。在被诊断为GDM的母亲中,先兆子痫和早产的风险增加。因此,本研究旨在确定早期预测GDM的危险因素.
    方法:为此,我们设计了一项前瞻性研究,由医师前瞻性地从2019年至2021年期间就诊的患者中收集数据,并获得知情同意.前瞻性数据有489个患者记录和72个变量,早期预测GDM的危险因素是使用逻辑回归和随机森林确定的,这是一种先进的分析方法。
    结果:获得的敏感性和特异性值对于逻辑回归为90%和75%,而对于随机森林为71%和90%。
    结论:在这项土耳其女性GDM的前瞻性研究中;年龄,BMI,血红蛋白A1c水平,空腹血糖水平,孕早期的身体活动时间,gravida,TG,分析结果证实HDL是危险因素.
    OBJECTIVE: To define risk factors for the early prediction of gestational diabetes mellitus (GDM) because the risk of pre-eclampsia and preterm birth increases in mothers who are diagnosed with GDM.
    METHODS: A prospective study was designed and the data were collected by physicians prospectively from the patients who came to the clinic between the years 2019 and 2021; informed consent was obtained from the women. The prospective data comprised 489 patient records with 72 variables and the risk factors for early prediction of GDM were determined using logistic regression and random forest (RF), which is an advanced analysis method.
    RESULTS: The obtained sensitivity and specificity values are 90% and 75% for logistic regression and 71% and 90% for the RF, respectively.
    CONCLUSIONS: In this prospective study of GDM in Turkish women; age, body mass index, level of hemoglobin A1c, level of fasting blood sugar, physical activity time in first trimester, gravidity, triglycerides, and high-density lipoprotein cholesterol were confirmed to be risk factors in analysis results.
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  • 文章类型: Journal Article
    这项研究旨在制定简单的诊断指南,这将有助于早期发现严重的登革热感染。回顾性分析登革热感染患者的资料。诊断为登革热感染的患者根据国际疾病统计分类(ICD-10)进行分类:A90,登革热;A91,登革热出血热;A910,登革热出血热伴休克。共纳入302例登革热感染患者,其中136(45%)为男性,166(55%)为女性。进行多变量分析以确定严重登革热感染的独立诊断预测因子,并将简单的诊断指南转换为疾病严重程度的评分系统。通过序数多变量逻辑回归分析产生的疾病严重程度的重要预测因子的系数被转换为项目得分。得出的总分范围从0到38.6。预测登革热严重程度的截止分数高于14,受试者工作曲线下面积(AUROC)为0.902。阳性预测值(PPV)为68.7%,阴性预测值(NPV)为94.1%。我们的研究表明,可以将几个诊断参数有效地结合到一个简单的评分表中,对登革热感染的严重程度具有预测价值。
    This study aimed to develop simple diagnostic guidelines which would be useful for the early detection of severe dengue infections. Retrospective data of patients with dengue infection were reviewed. Patients with diagnosed dengue infection were categorized in line with the International Statistical Classification of Diseases (ICD-10): A90, dengue fever; A91, dengue hemorrhagic fever; and A910, dengue hemorrhagic fever with shock. A total of 302 dengue-infected patients were enrolled, of which 136 (45%) were male and 166 (55%) were female. Multivariate analysis was conducted to determine independent diagnostic predictors of severe dengue infection and to convert simple diagnostic guidelines into a scoring system for disease severity. Coefficients for significant predictors of disease severity generated by ordinal multivariable logistic regression analysis were transformed into item scores. The derived total scores ranged from 0 to 38.6. The cut-off score for predicting dengue severity was higher than 14, with an area under the receiver operating curve (AUROC) of 0.902. The predicted positive value (PPV) was 68.7% and the negative predictive value (NPV) was 94.1%. Our study demonstrates that several diagnostic parameters can be effectively combined into a simple score sheet with predictive value for the severity evaluation of dengue infection.
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  • 文章类型: Journal Article
    早期预测人表皮生长因子受体2(HER2)阳性乳腺癌患者对新辅助化疗(NACT)的治疗反应,有助于及时调整治疗方案。我们旨在开发和验证暹罗多任务网络(SMTN),用于在NACT早期基于纵向超声图像预测病理完全反应(pCR)。
    在这个多中心,回顾性队列研究,本研究于2013年12月16日至2021年3月5日期间,回顾性纳入了中国三家医院经活检证实为HER2阳性乳腺癌的393例患者,并将其分为一个培训队列和两个外部验证队列.接受完整周期NACT且有手术病理结果的患者符合入选条件。关键排除标准是缺少超声图像和/或临床病理特征。拟议的SMTN由两个子网络组成,这些子网络可以在多个层连接,这允许在NACT的第一个/第二个周期之前和之后,从纵向超声图像中集成多尺度特征并提取动态信息。我们使用多变量逻辑回归分析构建了临床模型作为基线。然后评估SMTN的性能并与临床模型进行比较。
    培训队列,包括215名患者,选取云南省肿瘤医院。两个独立的外部验证队列,包括95和83名患者,选自广东省人民医院,山西省肿瘤医院,分别。SMTN产生0.986(95%CI:0.977-0.995)的受试者工作特征曲线下面积(AUC)值,0.902(95CI:0.856-0.948),和0.957(95CI:0.924-0.990)在训练队列和两个外部验证队列中,分别,显著高于临床模型(AUC:0.524-0.588,P均<0.05)。在两个外部验证队列中,抗HER2治疗亚组中SMTN的AUC值为0.833-0.972。此外,279例非pCR患者中的272例(97.5%)(160例中的159例(99.4%),54人中的53人(98.1%),在培训和两个外部验证队列中,65人中有60人(92.3%),分别)被SMTN成功识别,这表明他们可以从NACT早期阶段的制度调整中受益。
    SMTN能够预测HER2阳性乳腺癌患者NACT早期的pCR,这可以指导临床医生调整治疗方案。
    广东省重点地区研究发展计划(No.2021B0101420006);国家自然科学基金(No.82071892,82171920);广东省人工智能医学图像分析与应用重点实验室(No.2022B1212010011);国家科学基金青年科学基金(No.82102019,82001986);云南省科学基金20AW16843;云南省科学基金项目202020广州市科技项目(202201020001;202201010513);高级医院建设项目(DFJH201805,DFJHBF202105)。
    UNASSIGNED: Early prediction of treatment response to neoadjuvant chemotherapy (NACT) in patients with human epidermal growth factor receptor 2 (HER2)-positive breast cancer can facilitate timely adjustment of treatment regimens. We aimed to develop and validate a Siamese multi-task network (SMTN) for predicting pathological complete response (pCR) based on longitudinal ultrasound images at the early stage of NACT.
    UNASSIGNED: In this multicentre, retrospective cohort study, a total of 393 patients with biopsy-proven HER2-positive breast cancer were retrospectively enrolled from three hospitals in china between December 16, 2013 and March 05, 2021, and allocated into a training cohort and two external validation cohorts. Patients receiving full cycles of NACT and with surgical pathological results available were eligible for inclusion. The key exclusion criteria were missing ultrasound images and/or clinicopathological characteristics. The proposed SMTN consists of two subnetworks that could be joined at multiple layers, which allowed for the integration of multi-scale features and extraction of dynamic information from longitudinal ultrasound images before and after the first /second cycles of NACT. We constructed the clinical model as a baseline using multivariable logistic regression analysis. Then the performance of SMTN was evaluated and compared with the clinical model.
    UNASSIGNED: The training cohort, comprising 215 patients, were selected from Yunnan Cancer Hospital. The two independent external validation cohorts, comprising 95 and 83 patients, were selected from Guangdong Provincial People\'s Hospital, and Shanxi Cancer Hospital, respectively. The SMTN yielded an area under the receiver operating characteristic curve (AUC) values of 0.986 (95% CI: 0.977-0.995), 0.902 (95%CI: 0.856-0.948), and 0.957 (95%CI: 0.924-0.990) in the training cohort and two external validation cohorts, respectively, which were significantly higher than that those of the clinical model (AUC: 0.524-0.588, P all < 0.05). The AUCs values of the SMTN within the anti-HER2 therapy subgroups were 0.833-0.972 in the two external validation cohorts. Moreover, 272 of 279 (97.5%) non-pCR patients (159 of 160 (99.4%), 53 of 54 (98.1%), and 60 of 65 (92.3%) in the training and two external validation cohorts, respectively) were successfully identified by the SMTN, suggesting that they could benefit from regime adjustment at the early-stage of NACT.
    UNASSIGNED: The SMTN was able to predict pCR in the early-stage of NACT for HER2-positive breast cancer patients, which could guide clinicians in adjusting treatment regimes.
    UNASSIGNED: Key-Area Research and Development Program of Guangdong Province (No.2021B0101420006); National Natural Science Foundation of China (No.82071892, 82171920); Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application (No.2022B1212010011); the National Science Foundation for Young Scientists of China (No.82102019, 82001986); Project Funded by China Postdoctoral Science Foundation (No.2020M682643); the Outstanding Youth Science Foundation of Yunnan Basic Research Project (202101AW070001); Scientific research fund project of Department of Education of Yunnan Province(2022J0249). Science and technology Projects in Guangzhou (202201020001;202201010513); High-level Hospital Construction Project (DFJH201805, DFJHBF202105).
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