Zhongshan Daxue xuebao. Yixue kexue ban目的对孕妇妊娠期缺铁性贫血（IDA）的相关因素进行分析，根据其独立的危险因素，构建预测妊娠晚期缺铁性贫血的列线图预测模型，以期获得IDA的有效干预方案。方法将2022年7月—2023年12月在扬州市妇幼保健院定期产检的孕妇为调查对象，采取统一调查问卷结合监测血常规的方法跟踪孕妇直至分娩，入组500例，最终完成482例。根据孕晚期有无IDA分为IDA组与非IDA组。对可能影响缺铁性贫血的危险因素进行单因素分析及多因素logistic回归分析，并采用R软件建立预测发生的列线图模型 ...
杨林, 王亦雄, 潘辉, 徐扬
doaj +12 more sources
Influencing factors of cardiovascular adverse events risk in elderly patients with esophageal cancer undergoing video-assisted thoracoscopic surgery and nomogram prediction model construction [PDF]
, 2023 Background and purpose: The establishment of artificial pneumothorax during video-assisted thoracoscopic surgery may affect the intrathoracic pressure, cause the obstruction of superior vena cava reflux, and lead to the increased risk of adverse ...
LI Feng, TANG Xuehu, ZENG Bang, CHEN Minghua
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Zhejiang Daxue xuebao. Lixue ban, 2023 基于非凸变分方法在图像边界结构保持和对比度保持上的优势，针对泊松噪声的移除问题提出一种新的非凸非光滑正则化模型及快速求解算法。模型由非凸Lipschitz势函数复合图像梯度信息的正则化项和非线性Kullback-Leibler数据保真项两部分构成。通过使用临近点线性化策略，将求解非凸变分模型转化为求解一系列凸变分模型，进而使用交替方向乘子法求解。同时证明了算法的目标函数值序列具有单调下降性。实验结果表明，该方法能有效消除图像中的泊松噪声，且信噪比较经典算法有明显提升。
张远鹏(ZHANG Yuanpeng) +2 more
doaj +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2023 目的基于不同阶段COVID-19患者肺部病变变化，利用CT影像学特征建立列线图模型，探讨其预测病变是否进展的效能。方法对136例新冠肺炎患者进行回顾性研究，均经2次以上CT扫描。这些患者数据被分成三个队列（训练队列，以及验证队列1和2）。训练队列中的患者根据发热症状开始至首次CT的时间分为三组，分析比较各组之间临床表现和CT特征。根据患者的CT特征构建了一个预测疾病进展的列线图，并对其性能进行了评估。结果训练队列包括41名患者。根据三个CT特征：不规则条索影、充气支气管征和不规则形态病灶的比例≥50 ...
苏祝平 +7 more
doaj
Zhongguo shiyan zhenduanxue, 2022 目的 探讨低级别胶质瘤（LGG）患者中免疫评分水平的高低与总生存率（OS）的相关性，以期发现LGG的高危风险人群。方法 从TCGA数据库中获得了514名LGG患者的临床病理特征和免疫评分。Cox比例风险回归模型用于估计调整后的风险比（HR）。根据多变量分析结果，建立了列线图。模型进行了内部验证。通过时间依赖性受试者工作特征（ROC）曲线和校准曲线测量预测准确度和辨别能力。结果 根据免疫评分将患者分为3个亚组。与免疫评分较低的患者相比，免疫评分中等和较高的患者的OS的风险显著增加[HR和95%置信区间 ...
陈平, 王占峰
doaj
Construction and validation of prognostic risk model for hepatocellular carcinoma based on biological analysis of palmitoyl-associated enzyme long-chain non-coding RNA [PDF]
, 2023 Objective·To explore the effect of screening the expression of long non-coding RNA (lncRNA) related to palmitoylation on prognosis of liver cancer based on The Cancer Genome Atlas (TCGA) database and construct a risk prediction model in liver cancer ...
LI Yahui +4 more
core +1 more source
Establishment and evaluation of nomogram for differential diagnosis of systemic lupus erythematosus based on laboratory indications [PDF]
Objective·To establish a nomogram for the differential diagnosis of early systemic lupus erythematosus (SLE) and other autoimmune diseases based on laboratory indications, and to evaluate its efficacy.Methods·A total of 535 SLE patients admitted to the ...
CHEN Liubao +4 more
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Study on the Nomogram Model Based on Dual-energy Computed Tomography for Predicting Lymph Node Metastasis in Papillary Thyroid Carcinoma [PDF]
Objective: This study aimed to evaluate the effectiveness of a nomogram model based on dual-energy computed tomography (CT) quantitative parameters combined with clinical information for distinguishing metastatic from non-metastatic lymph nodes in ...
Bo GAO +9 more
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Current status of neurodevelopmental outcomes and its influencing factors of early-to-moderate preterm infants at corrected age of 18 months [PDF]
, 2023 Objective·To analyze the neurodevelopmental outcomes and risk factors of early-to-moderate preterm infants with gestational age≤34 weeks at corrected age of 18 months.Methods·The early-to-moderate preterm infants hospitalized in Neonatal Intensive Care ...
HUANG Hengye, SHEN Li, YU Guangjun
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Construction of a prognostic Nomogram for patients with incidental gallbladder cancer [PDF]
Objective To construct and validate an effective prognostic nomogram for the patients with incidental gallbladder cancer(IGBC). Methods The clinical data of 161 patients with IGBC requiring radical surgery admitted to the First Affiliated Hospital of Xi ...
MO Jiantao, CAO Ruiqi, REN Jiaqiang, GENG Zhimin, WU Zheng, CHENG Yali
core +1 more source