首页> 外文OA文献 >Cancer Mortality in Six Lowest Versus Six Highest Elevation Jurisdictions in the U.S.
【2h】

Cancer Mortality in Six Lowest Versus Six Highest Elevation Jurisdictions in the U.S.

机译:美国最低的六个区域与最高的六个最高区域中的癌症死亡率

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Low levels of background radiation exist around us continuously. These levels increase with increasing land elevation, allowing a comparison of low elevations to high elevations in regard to an outcome such as cancer death rates. The present study compares archived cancer mortality rates in six low versus six high elevation jurisdictions. The study also compares mortality rates for all causes, heart disease, and diabetes in low versus high elevation jurisdictions in an effort to see if other mortality outcomes are different in low versus high elevations. Statistically significant decreases in mortality, with very large effect sizes, were observed in high land elevation for three of the four outcomes, including cancer. One possible explanation for the decreased mortality in high elevation jurisdictions is radiation hormesis. Another possible explanation, at least in the case of heart disease mortality, is the physiologic responses that accompany higher elevations regarding decreased oxygen levels. Since this is an ecological study, no causal inferences can be made, particularly when viewpoints on possible effects of low level radiation are diametrically opposed. Further research is indicated.
机译:低水平的背景辐射持续存在于我们周围。这些水平随着土地海拔的升高而增加,从而可以将低海拔与高海拔之间就诸如癌症死亡率之类的结果进行比较。本研究比较了六个低海拔地区和六个高海拔地区的存档癌症死亡率。该研究还比较了低海拔地区和高海拔地区所有原因,心脏病和糖尿病的死亡率,以了解低海拔地区和高海拔地区的其他死亡率结果是否有所不同。在高海拔地区,对于包括癌症在内的四个结果中的三个,观察到死亡率具有统计学意义的显着降低,且影响范围非常大。在高海拔地区降低死亡率的一种可能解释是辐射兴奋。至少在心脏病死亡的情况下,另一个可能的解释是伴随氧气浓度降低而升高的生理反应。由于这是一项生态研究,因此无法做出因果推断,尤其是当完全反对有关低辐射的可能影响的观点时。有待进一步研究。

著录项

  • 作者

    Hart, John;

  • 作者单位
  • 年度 2010
  • 总页数
  • 原文格式 PDF
  • 正文语种 en
  • 中图分类

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号