The chances of living to age 100 and beyond nearly double for those born to a woman before her 25th birthday, according to new research by Drs. Leonid Gavrilov and Natalia Gavrilova of
the Center on Aging and National Opinion Research Center at the University of Chicago. The findings were made possible by a grant from the Society of Actuaries (SOA) and presented earlier
this spring at the Chicago Actuarial Association meeting, suggesting that the age when a woman gives birth has a significant impact on how long her child will live.
This follows a previous SOA-sponsored study, which indicated first-born children, especially daughters, are three times more likely to survive to age 100, but the significance of this
birth-order effect was unclear. Researchers have now found that it is the young age of the mother, as opposed to birth order, that may explain why first-born children could celebrate
their 100th birthday more often than others.
's8220;This finding may have important social implications because many women postpone their childbearing to later ages because of career demands,'s8221; explained Dr. Leonid Gavrilov,
researcher at the Center.
Previous research by the SOA and the Center revealed predictors for exceptional human longevity may include birth order, place of birth and early-life living conditions.
Using the U.S. Censuses, the Social Security Administration database, genealogical records and complete family histories, nearly 200 validated centenarians born in the United States from
1890-1893 were identified. Their complete family history was reconstructed using records and supplementary data resources in order to identify possible predictors of exceptional human
longevity.
's8220;This research helps us better understand the predictors of longevity and quantify the implications on society and business,'s8221; said Thomas Edwalds, fellow of the SOA and
president-elect of the Chicago Actuarial Association. 's8220;It illustrates that studies on human longevity could be modernized and advanced further by using new, computerized data
resources such as genealogies.'s8221;
The Power Point Presentation of these new findings presented at the Chicago Actuarial Association is publicly available online at: http://longevity-science.org/Chicago-Actuary-2006.ppt