Even more reason to have kids

Here’s an interesting finding– parents (including adoptive ones) are less likely to have a premature death.  The study uses one of my favorite methodologies– a natural experiment– to sort out whether it is really parenthood, or just something that correlates, at issue:

METHODOLOGY: Danish researchers turned a group of 21,276 couples undergoing IVF treatment for infertility over a 14-year period into a “natural experiment,” by comparing those who ended up having children to those who did not. Over 15,000 children were eventually born the couples, while another 1500 were adopted.

RESULTS: The death rate for childless women was 4 times higher than for women who had given birth. Women who had adopted had two-thirds the likelihood of dying prematurely. The death rate was also approximately halved for both biological and adoptive fathers. When the researchers controlled for things like age, education level, and income, these differences remained significant.

All of the deaths were attributed to circulatory disease, cancers, or accidents.

CONCLUSION: While unable to prove causation, the authors concluded that mortality rates are higher in people who don’t have children.

IMPLICATION: Because this study looked at people who were involuntarily childless, it weeded out factors like low levels of social support or unhealthy behavior that might have caused those who never had children to die earlier.

Also, if you don’t have kids, chances are low you will ever memorize entire books such as Hippos Go Berserk or the key passages of “The Sneetches.”  And reciting these always impresses.

About Steve Greene
Professor of Political Science at NC State http://faculty.chass.ncsu.edu/shgreene

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