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Title: Month of Birth and Exceptional Longevity: A Within-Family Analysis

Citation Type: Conference Paper

Publication Year: 2012

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Abstract: This study explores the effects of month of birth (a proxy for early-life environmental influences) on the chances of survival to age 100. Months of birth for 1,574 validated centenarians born in the United States in 1880-1895 were compared to the same information obtained for centenarians 10,885 shorter-lived siblings and 1,083 spouses. Comparison was conducted using a within-family analysis by the method of conditional logistic regression, which allows researchers to control for unobserved shared childhood or adulthood environment and common genetic background. It was found that month of birth has a significant long-lasting effect on survival to age 100: siblings born in September-November have higher odds to become centenarians compared to siblings born in March. A similar month-of-birth pattern was found for centenarian spouses. These results support the idea of early-life programming of human aging and longevity.

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Authors: Gavrilova, Natalia S.; Gavrilov, Leonid A.

Conference Name: Population Association of America

Publisher Location: San Francisco, CA

Data Collections: IPUMS USA

Topics: Aging and Retirement, Other

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