模糊状态风险分析的广义Logistic回归理论与应用(2)

借助模糊状态概念、交叉积差和统计量和信息量寻优 标准,转好实现最佳非饱和模型拟合与归因危险度估计,突破 了传统谱系套模型限定的约束,能找出显著交互效应项,有助 于揭示微弱相关影响因素的多因素联合作用。     

模糊状态风险分析的广义Logistic回归理论与应用：最佳？…

借助模糊状态概念、交叉积差和统计量和信息量寻优标准,转好实现最佳非饱和模型拟合与归因危险度估计,突破了传统谱系套模型限定的约束,能找出显著交互效应项,有助于揭示微弱相关影响因素的多因素联合作用。     

模糊状态风险分析的广义Logistic回归理论与应用(4)--广义无条件与条件Logistic回归模型

本文发展了广义风险函数,用于Logistic回归模型,通过条件分量分析和实际应用,提出了“微弱相关影响因素”交互效应的“非线性放大作用”概念,并强调整体观分析－综合意识的重要性。     

公共卫生危机管理探讨

本文以社会学、心理学的相关原理为理论基点 ,论述了危机、卫生危机及公共卫生危机的概念、因素和影响 ,探讨了政府在公共卫生危机管理中应对策略 ,以资政府相关组织借鉴。     

带协变量的统计分布及其应用：疾病的统计分布（四）

疾病的发生受诸多因素的影响，故疾病发生数的统计分布料随影响因素及其水平的变化而发生改变，即单位时间或空间的病例数的统计分布不是一成不变的。本文提出带协变量的统计分布之概念，并以时依Ｐｏｉｓｓｏｎ分布为例，说明了这类问题的求解有其应用。     

基于灰色关联度分析法的四川省人均卫生费用影响因素研究

目的 研究2011年—2018年四川省人均卫生费用的影响因素,为四川省公共卫生事业的可持续发展提供相关建议.方法 选取2012年—2020年《中国统计年鉴》《中国卫生健康统计年鉴》《四川统计年鉴》及《四川卫生健康年鉴》中相关人均卫生费用影响因素的数据,采用灰色关联度分析方法,分析人均卫生费用与5个维度、13个指标之间的...     

农村基层医疗服务双向转诊及影响因素实证研究

目的：定量评价广东省农村基层医疗服务双向转诊的现状并分析其影响因素。方法：构建影响因素的概念框架,通过乡村医生问卷调查和多变量统计回归模型,掌握广东省农村医疗服务转诊特征,探讨影响因素,并结合现实情况分析各环节的相互作用。结果：村卫生站举办模式、统一的转诊标准和规范、村医生的服务能力、村卫生站的硬件建设均对转诊有影响,且村卫生站举办模式与其它因素相互作用。     

自我隐瞒与健康关系研究现况及发展趋势

自我隐瞒是影响个体身心健康的重要因素。对国内外自我隐瞒相关研究进行综述,主要介绍了自我隐瞒的概念、相关理论及研究焦点。进一步探讨自我隐瞒对健康的影响机制,加强实验研究和纵向研究是未来研究的趋势。     

农村医疗业务统计报表中常见错误情况分析

在农村医院,特别是区乡一级卫生院,由于医院规模小,条件差,大多数医院没有配备专职的统计人员。而兼职和临时指定的统计报表人员,因统计业务水平较差和受其他因素的影响,在进行医院工作统计报表中,经常出现各种错误。现将常见的错误情况作一分析:一、门诊人次:对门诊人次的概念不清,     

强化质量控制提高医院感染统计水平

医院感染统计水平的高低不仅直接影响其相关指标的准确性,而且影响医院感染的有效控制,影响医院工作效率和质量的提高.因此,提高医院感染统计水平对于维护伤病员的权益,增强医院的效益,节省社会资源都具有重要的意义.要提高医院感染统计水平,就必须弄清影响医院感染统计质量的有关因素,有针对性地采取相应措施、强化全员全程质量控制.     

模糊层次分析法在煤矿生产性噪声危害分级评价中的应用

目的建立煤矿噪声风险评价指标体系,探索模糊层次分析法(F-AHP)评价生产性噪声危害分级的实际应用。方法将传统的层次分析法与模糊数学理论结合,运用层次分析法计算各评价指标的权重,通过模糊综合评判计算出煤矿噪声的风险分值,参照评语集得出该煤矿噪声的风险等级。结果建立的煤矿噪声风险评价指标体系包括6项一级指标和24项二级指标,以某煤矿为实例评估得该煤矿的噪声风险等级为三级(具有一定风险),与实际情况一致。结论运用模糊层次分析法评估煤矿噪声风险等级是可行、有效的,具有实际应用意义。     

自然水中麦氏弧菌生物学性状的研究

本文自1530份河水和塘水标本中分离到188株麦氏弧菌,总阳性率为12.29％。其中河水占12.75％、塘水11. 37％。该菌中的绝大多数能在无盐胨水中呈现弱生长,其中有9株产色素麦氏弧菌。 氧化酶和硝酸盐还原试验对于鉴定麦氏孤菌至关重要。根据麦氏弧菌对乳糖、肌醇的分解和靛基质反应该菌被分为八个生物型(Ⅰ、Ⅱ、Ⅲ、Ⅳ、Ⅴ、Ⅵ、Ⅶ、Ⅷ)。结果显示,Ⅰ型占优势(53.19％)、Ⅲ型次之(11.70％)。     

基于信息熵的磁共振成像设备性能评估的研究

目的:评估磁共振成像(MRI)设备的性能状态,实施MRI设备的质量保证和质量控制方案,为诊断疾病提供优质的图像.方法:将模糊数学和信息熵方法引入MRI设备的性能分析中,通过分析MRI设备的图像质量综合评价指标数据,建立多参数的MRI设备性能评估模型.选择医院门诊楼内MRI设备(MRI设备-1)和医技楼MRI设备(MRI...     

FEMLAB对OCT在脑外科手术中应用可行性的仿真分析

光学相干层析技术是一种高分辨率成像方法。它是一种无损伤、非介入、非离子辐射的探测技术，具有较高的空间分辨率。有限元分析（FEA）是用于工程科学的重要工具，FEMLAB（Finite Element Modeling Laboratory）是基于偏微分方程的对科学和工程问题进行建模和仿真计算的交互式系统。本文简要介绍了OCT成像技术的原理及FEMLAB的应用步骤，重点用FEMLAB软件对脑组织内光场的分布情况进行分析，从而利用分析结果论证OCT成像在脑外科手术中应用的可行性。     

High Prevalence of Vitamin D Deficiency in Infertile Women Referring for Assisted Reproduction

A comprehensive analysis of the vitamin D status of infertile women is the first step in understanding hypovitaminosis impact on reproductive potential. We sought to determine vitamin D profiles of women attending an infertility center and to investigate non-dietary determinants of vitamin D status in this population. In this cross-sectional analysis, a cohort of 1072 women (mean age ± standard deviation 36.3 ± 4.4 years) attending an academic infertility center was used to examine serum 25-hydroxy-vitamin D (25(OH)D) levels in relation to demographic characteristics, seasons and general health risk factors. Both unadjusted and adjusted levels of serum 25(OH)D were examined. Median 25(OH)D concentration was below 30 ng/mL for 89% of the entire year. Over the whole year, 6.5% of patients had 25(OH)D levels ≤10 ng/mL, 40.1% ≤20 ng/mL, and 77.4% ≤30 ng/mL. Global solar radiation was weakly correlated with 25(OH)D levels. At multivariable analysis, 25(OH)D levels were inversely associated with BMI; conversely, 25(OH)D levels were positively associated with height and endometriosis history. Serum 25(OH)D levels are highly deficient in women seeking medical help for couple’s infertility. Levels are significantly associated with body composition, seasonal modifications and causes of infertility. Importantly, this deficiency status may last during pregnancy with more severe consequences.     

公立医院人才可持续发展满意度对管理人员服务绩效的作用机制研究

目的 分析公立医院人才可持续发展满意度影响管理人员服务绩效的条件组态,并探求其影响机制。方法 选取北京市18家三级公立医院617名管理人员进行问卷调查,使用fsQCA 3.0软件进行模糊集定性比较分析。结果 影响公立医院管理人员服务绩效的条件组态分为晋升主导型、管理主导型和综合型三种路径。结论 建议完善晋升管理机制,建立“相对衡量”的绩效评价体系;落实公立医院改革,提高人才可持续发展满意度;引导要素合理配置,推动服务绩效全面提升。     

The evaluation of the Center for Epidemiologic Studies Depression (CES-D) scale: Depressed and Positive Affect in cancer patients and healthy reference subjects

This study examined the reliability and validity of a two-factor structure of the Center for Epidemiologic Studies Depression (CES-D) scale. The study was conducted in a large group of cancer patients (n = 475) and a matched reference group (n = 255). Both groups filled in a questionnaire at two points in time; patients 3 and 15 months after diagnosis. Factor analysis confirmed our hypothesis that the 16 negatively and four positively formulated items measure two relatively independent factors, i.e. Depressed Affect and Positive Affect. Therefore, these items should not be combined into an overall sumscore. In both groups, Depressed Affect proved to be a reliable and valid measure of depressive symptomatology, as indicated by its good internal consistency, its strong correlations with other measures of psychological distress and neuroticism, and its effectiveness in discriminating patients from the reference group on depressive symptomatology. In contrast, the validity of the Positive Affect factor could not be confirmed, since it was only weakly related to other measures of psychological distress and extraversion. Depressed and Positive Affect were about equally related to self-esteem, life satisfaction, and quality of life. These findings support the use of a sumscore based on the 16 negatively formulated CES-D items as a more valid measure of depressive symptomatology, in cancer patients and in healthy individuals from the general population. This revised version was published online in July 2006 with corrections to the Cover Date.     

Hemagglutinin Receptor Binding of a Human Isolate of Influenza A(H10N8) Virus

Three cases of influenza A(H10N8) virus infection in humans have been reported; 2 of these infected persons died. Characterization of the receptor binding pattern of H10 hemagglutinin from avian and human isolates showed that both interact weakly with human-like receptors and maintain strong affinity for avian-like receptors.