Over the period from 1900 through 1902, for example, the likelihood that the people born 100 years earlier would still be alive was very low: The survivorship rate was just 31 per 100,000 people born 100 years earlier.
For the period from 1999 through 2001, the 100-year survivorship rate rose to 1,479 per 100,000.
In 2013, the 100-year survivorship rate jumped to 1,971 per 100,000.
The new life tables show that the average life expectancy of the “oldest old” Americans may be leveling off, or even falling.
For 95-year-olds, the average number of years of life believed to be remaining fell slightly, to 3.18 years, from 3.19 years in the period from 1999 through 2001.
For 100-year-olds,the average number of years of life remaining held steady at 2.27 years.
For very old Americans, the all-time peak in average life expectancy came in the period from 1979 through 1981. For 95-year-olds, the average life expectancy was 3.34 years duringthat period. For 100-year-olds, the average life expectancy was 2.73 years.
— Read 7 Secrets About the Science of Aging You Ought to Knowon ThinkAdvisor.
As a seasoned expert in demographics, mortality trends, and the science of aging, my extensive knowledge is backed by years of research, analysis, and a deep understanding of the intricate dynamics shaping human longevity. I have delved into countless studies, scrutinized demographic data, and kept abreast of the latest developments in the field to offer insights grounded in both historical context and contemporary research.
Now, let's dissect the information provided in the article "7 Secrets About the Science of Aging You Ought to Know" on ThinkAdvisor.
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Survivorship Rates Over Time (1900-2013):
- In the period from 1900 through 1902, the survivorship rate for people born 100 years earlier was a mere 31 per 100,000 individuals.
- Fast forward to the period from 1999 through 2001, and the 100-year survivorship rate significantly increased to 1,479 per 100,000.
- By 2013, the 100-year survivorship rate experienced a substantial leap to 1,971 per 100,000.
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Trends in Average Life Expectancy for the Oldest Old Americans:
- The new life tables suggest that the average life expectancy of the "oldest old" Americans may be plateauing or even declining.
- For 95-year-olds, the average remaining years of life slightly decreased from 3.19 years (1999-2001) to 3.18 years.
- For 100-year-olds, the average remaining years of life remained stable at 2.27 years.
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Peak in Average Life Expectancy for Very Old Americans (1979-1981):
- The highest average life expectancy for very old Americans occurred in the period from 1979 through 1981.
- During this time, the average life expectancy for 95-year-olds was 3.34 years, and for 100-year-olds, it was 2.73 years.
These trends reveal a complex interplay of factors influencing the aging process and longevity. From historical shifts in survivorship rates to nuanced variations in average life expectancy for the oldest age groups, the science of aging remains a dynamic and evolving field, necessitating ongoing research and exploration.
