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相关概念视频

Hazard Ratio01:12

Hazard Ratio

154
The hazard ratio (HR) is a widely used measure in clinical trials to compare the risk of events, such as death or disease recurrence, between two groups over time. It reflects the ratio of hazard rates—the instantaneous risk of the event occurring—between a treatment group and a control group. This measure provides valuable insights into the relative effectiveness of a treatment by assessing how the risk of an event differs between the two groups.
For example, in a clinical trial...
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Regression Toward the Mean01:52

Regression Toward the Mean

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Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when...
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Correlation and Causation

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Statistical tests can calculate whether there is a relationship, or correlation, between independent and dependent variables. An indirect relationship of the variables signifies a correlation, while a direct relationship shows causation. If it is determined that no connection exists between the variables, then the correlation is a coincidence.
Correlation versus Causation
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Correlation means that there is a relationship between two or more variables (such as ice cream consumption and crime), but this relationship does not necessarily imply cause and effect. When two variables are correlated, it simply means that as one variable changes, so does the other. We can measure correlation by calculating a statistic known as a correlation coefficient. A correlation coefficient is a number from -1 to +1 that indicates the strength and direction of the relationship between...
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Relative Risk01:12

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Relative risk (RR) is a statistical measure commonly used in epidemiology to compare the likelihood of a particular event occurring between two groups. This metric is important for evaluating the relationship between exposure to a specific risk factor and the probability of a particular outcome. It plays a crucial role in medical research, public health studies, and risk assessment. Relative risk quantifies how much more (or less) likely an event is to occur in an exposed group compared to an...
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Overview
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相关实验视频

Updated: Jul 16, 2025

Methodology for Developing Life Tables for Sessile Insects in the Field Using the Whitefly, Bemisia tabaci, in Cotton As a Model System
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恐怖主义和儿童死亡率

Daniel Meierrieks1, Max Schaub1,2

  • 1WZB Berlin Social Science Center, Berlin, Germany.

Health economics
|September 17, 2023
PubMed
概括
此摘要是机器生成的。

恐怖主义显著增加了非洲的儿童死亡率,每年造成数千人死亡. 这种影响源于间接的经济和行为影响,而不是直接的暴力.

关键词:
非洲 非洲 非洲儿童死亡率 儿童死亡率专家小组活动研究.恐怖主义 恐怖主义 恐怖主义

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科学领域:

  • 全球健康 全球健康
  • 发展经济学 发展经济学
  • 政治科学 政治科学是指政治学.

背景情况:

  • 儿童死亡率仍然是一个关键的全球卫生挑战,特别是在发展中国家.
  • 恐怖主义是一个日益严重的安全问题,具有潜在的,但尚未研究的社会经济后果.
  • 了解冲突对弱势群体的多方面的影响对于有效的政策至关重要.

研究的目的:

  • 调查52个非洲国家的恐怖主义和儿童死亡率之间的因果关系.
  • 量化归因于恐怖主义的儿童死亡的规模.
  • 探索恐怖主义影响儿童死亡率的机制.

主要方法:

  • 利用了关于恐怖主义事件的地理编码数据和空间分类的儿童死亡率数据.
  • 分析了2000年至2017年的52个非洲国家的数据,以0.5°x0.5°的网格水平.
  • 采用面板事件研究方法来评估经济影响和间接影响.

主要成果:

  • 恐怖主义的适度增加与每年数千名5岁以下儿童的额外死亡相关.
  • 恐怖主义的经济后果是巨大的,随着时间的推移而复合.
  • 恐怖主义对儿童死亡率的直接影响是最小的;通过行为改变的间接影响是主要的.

结论:

  • 恐怖主义通过父母,医疗保健工作者和政策制定者的不良行为反应间接推动儿童死亡率.
  • 需要针对社会经济因素和行为适应的政策干预,以减轻恐怖主义对儿童生存的影响.
  • 需要进一步的研究,以充分阐明将恐怖主义与儿童死亡率联系在一起的复杂途径.