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Stable Isotope In-Vivo Labeling for Mass-Spectrometry Identification of Paternal Metabolites Transferred from Sperm to Oocyte During Fertilization

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Do sons reduce parental mortality?

Genevieve Pham-Kanter¹, Noreen Goldman

¹Office of Population Research, Princeton University, 259 Wallace Hall, Princeton, NJ 08544, USA. gpkanter@princeton.edu

Journal of Epidemiology and Community Health

|May 10, 2011

Summary

This summary is machine-generated.

In China and Taiwan, having sons did not improve parental survival rates. Daughters may offer greater benefits in reducing mortality, possibly due to emotional support and avoiding conflicts with daughters-in-law.

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Area of Science:

Demography
Sociology
Gerontology

Background:

Cultural norms often emphasize the importance of sons for elderly care and support.
Previous research suggests sons may be advantageous for parental survival in certain social contexts.
This study investigates the impact of offspring sex composition on parental survival in East Asian societies.

Purpose of the Study:

To examine the relationship between the sex composition of offspring and parental survival in contemporary China and Taiwan.
To test the hypothesis that sons provide a survival advantage to parents, relative to daughters.

Main Methods:

Utilized data from the Chinese Longitudinal Healthy Longevity Survey (CLHLS) and the Taiwan Longitudinal Study of Aging (TLSA).
Employed Cox proportional hazards models to analyze mortality risks.
Included large samples of individuals aged 50 and above, followed over multiple years.

Main Results:

No protective effect of having sons on parental survival was found in either China or Taiwan.
Analysis based on seven measures of offspring sex composition yielded no significant survival benefit for sons.
In Taiwan, recent data suggest daughters may be more beneficial than sons in reducing parental mortality.

Conclusions:

The expected survival advantage of sons was not supported by the data in these populations.
Potential benefits of daughters, such as emotional support, may outweigh those of sons.
Conflicts with daughters-in-law might negatively impact parental survival, counteracting any benefits from sons.