V2EX life expectancy

Life Expectancy

定义 Definition

life expectancy预期寿命;指在某一特定时期、地区或人群中,一个人从出生(或达到某年龄)起平均还能活多少年的统计估计值。常见搭配有 at birth(出生时预期寿命)等。

发音 Pronunciation (IPA)

/laf kspk.tn.si/

例句 Examples

Life expectancy has increased in many countries.
许多国家的预期寿命已经提高。

Although overall life expectancy is rising, it can vary widely depending on income, education, and access to healthcare.
尽管总体预期寿命在上升,但它会因收入、教育程度以及医疗可及性而存在很大差异。

词源 Etymology

life(生命、生活)源自古英语 līfexpectancy 来自 expect(期待、预期),其词根与拉丁语 spectare(观看、观察)有关,含“根据观察作出预期”的意味。合在一起,life expectancy 字面意思就是“对生命长度的预期”,后来在公共卫生与人口统计学中固定为“预期寿命”。

相关词 Related Words

  • Longevity
  • Lifespan
  • Mortality
  • Life Table
  • Demography
  • Public Health
  • Epidemiology
  • Infant Mortality
  • Aging
  • Healthcare
  • 文学与著名作品 Literary Works

    • The Ghost Map(Steven Johnson)讨论霍乱与公共卫生改进,涉及城市健康与预期寿命变化等主题。
    • The Emperor of All Maladies(Siddhartha Mukherjee)讲述癌症史与医学进步,常在相关论述中提及寿命延长与人群健康指标(包括预期寿命)。
    • Factfulness(Hans Rosling 等)以全球发展数据为核心,包含对各国健康水平与预期寿命的比较性讨论。
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