概括
上世纪90年代前苏联国家的围产死亡率 (PM) 与经济衰退 (人均GDP) 有关. 仅在乌克兰和爱沙尼亚,暴露是重要的因素,在乌克兰和爱沙尼亚,PM在十年初急剧增加.
科学领域:
- 公共卫生 公共卫生
- 人口统计学 人口统计学
- 环境健康 环境健康
背景情况:
- 前苏联 (FSU) 国家的产周死亡率 (PM) 在苏联解体后经历了波动.
- 了解这些变化的驱动因素对于公共卫生干预至关重要.
研究的目的:
- 从20世纪90年代起,分析乌克兰,白俄罗斯,俄罗斯联邦,摩尔多瓦和爱沙尼亚的围产死亡率趋势.
- 调查社会经济因素 (人均国内生产总值) 和潜在的环境暴露 () 对颗粒物率的影响.
主要方法:
- 利用来自世卫组织"全民健康"数据库的围产死亡率数据.
- 采用了具有长期趋势的回归模型,人均GDP作为社会经济危机的代理,以及作为共变量的暴露.
- 分析了来自五个FSU国家的数据:乌克兰,白俄罗斯,俄罗斯,摩尔多瓦和爱沙尼亚.
主要成果:
- 纳入人均GDP的回归模型有效地解释了白俄罗斯,俄罗斯和摩尔多瓦的PM率偏差.
- 仅在乌克兰和爱沙尼亚,暴露是增加颗粒物的重要因素.
- 1987年,大多数国家的颗粒粒物率都在上升,爱沙尼亚在1988年达到峰值.
结论:
- 该研究得出结论,人均GDP下降是1990年代这些FSU国家围产死亡率增加的主要驱动因素.
- 暴露对围产死亡率的影响局限于乌克兰和爱沙尼亚,与经济衰退之前的90年代初的颗粒激增相吻合.
更多相关视频
04:11Author Spotlight: Advancing In Vitro Blood Cell Production with Single-Cell Multiomics and Functional Genomics
Published on: March 15, 2024
1.2K
10:55A Piglet Perinatal Asphyxia Model to Study Cardiac Injury and Hemodynamics after Cardiac Arrest, Resuscitation, and the Return of Spontaneous Circulation
Published on: January 13, 2023
1.9K
相关概念视频
Biological Effects of Radiation
16.1K
All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they...
16.1K
Types of Radioactivity
17.6K
The most common types of radioactivity are α decay, β decay, γ decay, neutron emission, and electron capture.
Alpha (α) decay is the emission of an α particle from the nucleus. For example, polonium-210 undergoes α decay:
Alpha (α) decay is the emission of an α particle from the nucleus. For example, polonium-210 undergoes α decay:
17.6K
Radioactivity and Nuclear Equations
22.7K
Nuclear chemistry is the study of reactions that involve changes in nuclear structure. The nucleus of an atom is composed of protons and, except for hydrogen, neutrons. The number of protons in the nucleus is called the atomic number (Z) of the element, and the sum of the number of protons and the number of neutrons is the mass number (A). Atoms with the same atomic number but different mass numbers are isotopes of the same element.
A nuclide of an element has a specific number of protons and...
A nuclide of an element has a specific number of protons and...
22.7K
Teratogenicity
2.8K
The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
2.8K
Meiosis vs. Mitosis
58.3K
Cell division is necessary for growth and reproduction in organisms. Mitosis aids cell growth and development by dividing somatic cells. In contrast, meiosis causes the division of germ cells and plays an essential role in sexual reproduction. Due to their unique functional requirements, mitosis and meiosis differ from each other in multiple aspects.
Before the start of mitosis and meiosis I, the cell synthesizes DNA, resulting in two homologous copies of each chromosome. DNA synthesis is...
Before the start of mitosis and meiosis I, the cell synthesizes DNA, resulting in two homologous copies of each chromosome. DNA synthesis is...
58.3K
Nuclear Stability
20.1K
Protons and neutrons, collectively called nucleons, are packed together tightly in a nucleus. With a radius of about 10−15 meters, a nucleus is quite small compared to the radius of the entire atom, which is about 10−10 meters. Nuclei are extremely dense compared to bulk matter, averaging 1.8 × 1014 grams per cubic centimeter. If the earth’s density were equal to the average nuclear density, the earth’s radius would be only about 200 meters.
To hold positively charged protons together...
To hold positively charged protons together...
20.1K
