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Kids of Older Parents May Have Fewer Behavioral Problems

The evidence is clear that couples are waiting to have children at a later age. While some studies suggest a link between a father’s age and a mental health diagnosis among offspring, a new Dutch study considered the behavior problems of children born to older parents among a general population.

Specifically, researchers looked at externalizing behaviors (e.g., aggression) and internalizing behaviors (e.g., anxiety, depression) of children born to older parents when the youth were 10 to 12 years old.

Investigators discovered that children of older parents tend to have fewer externalizing behavior problems than children of younger parents. The researchers also found that parents’ age was unrelated to children’s internalizing behaviors.

The study was done by researchers at Utrecht University, Vrije Universiteit Amsterdam, Erasmus Medical Center, and University Medical Center Groningen. The study appears in Child Development, a journal of the Society for Research in Child Development.

“Evidence points to an association between fathers’ age and autism spectrum disorders and schizophrenia, so we wanted to know if there is an association in the general population between parents’ age and common behavior problems in children, beyond the clinical diagnoses,” said study leader Dr. Marielle Zondervan-Zwijnenburg, a postdoctoral researcher at Utrecht University.

“With respect to common behavior problems, we found no reason for future parents to worry about a harmful effect of having a child at an older age.”

Researchers analyzed the problem behavior of 32,892 Dutch children when they were 10 to 12 years old. Problem behavior was rated by fathers, mothers, teachers, and the children themselves through a series of standardized instruments.

The children, all of whom were born after 1980, were part of four studies: Generation R, the Netherlands Twin Register, the Research on Adolescent Development and Relationships-Young Cohort (RADAR-Y), and the Tracking Adolescents’ Individual Lives Survey.

The children represented the entire Dutch geographic region across all strata of society and a range of socioeconomic statuses.

In the Generation R study, mothers’ age at child’s birth ranged from 16 to 46 and fathers’ age at child’s birth ranged from 17 to 68. In the Netherlands Twin Register, mothers’ age at child’s birth ranged from 17 to 47 and fathers’ from 18 to 63.

In the RADAR-Y study, mothers’ age at child’s birth ranged from 17 to 48 and fathers’ from 20 to 52. And in the Tracking Adolescents’ Individual Lives Survey, mothers’ age at child’s birth ranged from 16 to 44 and fathers’ from 18 to 52.

Investigators discovered that the children of older parents had fewer externalizing behavior problems, as reported by the parents.

The findings of fewer externalizing behavior problems persisted —as reported by parents and teachers — even after considering the families’ socioeconomic status. Therefore, researchers believe the favorable effect of parents’ age on children’s behavior was not solely due to their income level.

The study also found that parents’ age appeared unrelated to children’s internalizing behavior problems.

Investigators note that they focused only on children’s externalizing and internalizing behavior problems, so the findings cannot be generalized to other behaviors. However, they are extending their research to cognition and attention problems.

In addition, the researchers assessed children’s behavior problems during early adolescence; they plan to extend their work to other points in development.

“It’s possible that some of the reason why older parents have children with fewer problems like aggression is that older parents have more resources and higher levels of education,” said Dr.  Dorret Boomsma, a professor at Vrije Universiteit Amsterdam and a study coauthor.

“But it is important to note that the higher average educational level of older parents does not completely explain the decreased levels of externalizing problems in their children.”

Source: Society for Research in Child Development

Kids of Older Parents May Have Fewer Behavioral Problems

Rick Nauert PhD

Rick Nauert, PhDDr. Rick Nauert has over 25 years experience in clinical, administrative and academic healthcare. He is currently an associate professor for Rocky Mountain University of Health Professionals doctoral program in health promotion and wellness. Dr. Nauert began his career as a clinical physical therapist and served as a regional manager for a publicly traded multidisciplinary rehabilitation agency for 12 years. He has masters degrees in health-fitness management and healthcare administration and a doctoral degree from The University of Texas at Austin focused on health care informatics, health administration, health education and health policy. His research efforts included the area of telehealth with a specialty in disease management.

APA Reference
Nauert PhD, R. (2019). Kids of Older Parents May Have Fewer Behavioral Problems. Psych Central. Retrieved on September 21, 2019, from https://psychcentral.com/news/2019/08/03/kids-of-older-parents-may-have-fewer-behavioral-problems/149133.html
Scientifically Reviewed
Last updated: 3 Aug 2019
Last reviewed: By a member of our scientific advisory board on 3 Aug 2019
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