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Published on: January 7, 2013
Attained parental age and children's survival at mid-life ages in a large population
Barbara E K Klein1, Kristine E Lee, Ronald Klein
1Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, Wisc., USA. kleinb@epi.ophth.wisc.edu
Objective:
Long-lived persons tend to share a survival advantage with their parents and siblings; however, there is limited information on benefit beyond the extremes of longevity. We evaluated a survival benefit associated with age of parents.
Methods:
A population-based study of adults 43-86 years of age in a Midwestern town was performed (n = 4,926). Extensive exam and questionnaire information including current age or age at death of parents of study participants was obtained.
Results:
While adjusting for age and gender, those with at least one parent surviving to 100 years of age had the best survival (92% survive to age 70 and 54% to age 90). There appeared to be a survival benefit for each decade of maximal parental age. A trend persists when additional risk factors are included in the model.
Discussion:
There is a survival benefit to offspring of increasing parental age that is apparent as early as 80 years of parental age.
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