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Related Concept Videos

Life Tables01:22

Life Tables

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A life table is a statistical tool that summarizes the mortality and survival patterns of a population, providing detailed insights into the likelihood of survival or death across different age intervals within a cohort. By organizing data on survival probabilities and mortality rates, life tables offer a clear snapshot of population dynamics over time. They are extensively used in demography, public health, actuarial science, and ecology to analyze life expectancy, design health interventions,...
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Applications of Life Tables01:22

Applications of Life Tables

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Life tables are versatile across various fields, providing a quantitative basis for analyzing mortality and survival rates. Whether used by demographers, actuaries, epidemiologists, or sociologists, life tables offer valuable insights into the dynamics of life and death, facilitating informed decisions in public health, insurance, conservation, and beyond. Their broad applicability highlights the interconnectedness of demographic data with practical outcomes in everyday life and strategic...
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Actuarial Approach01:20

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The actuarial approach, a statistical method originally developed for life insurance risk assessment, is widely used to calculate survival rates in clinical and population studies. This method accounts for participants lost to follow-up or those who die from causes unrelated to the study, ensuring a more accurate representation of survival probabilities.
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Population Growth00:57

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Population size is dynamic, increasing with birth rates and immigration, and decreasing with death rates and emigration. In ideal conditions with unlimited resources, populations can increase exponentially, which plots as a J-shaped growth rate curve of population size against time. This type of curve is characteristic of newly-introduced invasive species, or populations that have suffered catastrophic declines and are rebounding.
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z scores are the standardized values obtained after converting a normal distribution into a standard normal distribution. A z score is measured in units of the standard deviation. The z score tells you how many standard deviations the value x is above (to the right of) or below (to the left of) the mean, μ. Values of x that are larger than the mean have positive z scores, and values of x that are smaller than the mean have negative z scores. If x equals the mean, then x has a z score of...
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Modified MicroSecure Vitrification: A Safe, Simple and Highly Effective Cryopreservation Procedure for Human Blastocysts
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Births: Final Data for 2022.

Michelle J K Osterman, Brady E Hamilton, Joyce A Martin

    National Vital Statistics Reports : From the Centers for Disease Control and Prevention, National Center for Health Statistics, National Vital Statistics System
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    US births in 2022 saw a decline in the general fertility rate and teen birth rates, alongside an increase in births among women aged 45-49. Key trends in maternal and infant health indicators were also observed.

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    Area of Science:

    • Demography
    • Public Health
    • Reproductive Health

    Background:

    • Understanding national birth statistics is crucial for public health planning and resource allocation.
    • Tracking fertility trends and maternal/infant characteristics provides insights into population dynamics and healthcare needs.

    Purpose of the Study:

    • To present comprehensive 2022 data on U.S. births by selected characteristics.
    • To describe trends in fertility patterns, maternal, and infant health indicators from 2010-2022.

    Main Methods:

    • Descriptive tabulations of 3.67 million U.S. births in 2022 using birth certificate data.
    • Analysis included maternal age, race, Hispanic origin, marital status, tobacco use, prenatal care, payment source, delivery method, gestational age, birthweight, and plurality.
    • Trends were examined for 2010-2022, with specific race and Hispanic origin trends analyzed for 2016-2022.

    Main Results:

    • The general fertility rate decreased by 1% to 56.0 births per 1,000 women aged 15-44.
    • Birth rates declined for younger women (15-24) but increased for women aged 25-29, 35-44, and notably 45-49.
    • Preterm birth rate decreased to 10.38%, while low birthweight rate increased to 8.60%. Medicaid funded 41.3% of births.

    Conclusions:

    • The U.S. experienced a continued decline in overall fertility, with significant shifts in age-specific birth rates.
    • Maternal health indicators show mixed trends, with improvements in preterm birth but an increase in low birthweight rates.
    • These data underscore evolving fertility patterns and persistent challenges in maternal and infant health outcomes.