Friday, January 17, 2020
US flag

Parents obese? You might be slow.

Children of obese parents may be at risk for developmental delays, according to a study by researchers at the National Institutes of Health.

Investigators found that children of obese mothers were more likely to fail tests of fine motor skill—the ability to control movement of small muscles, such as those in the fingers and hands. Children of obese fathers were more likely to fail measures of social competence, and those born to extremely obese couples also were more likely to fail tests of problem solving ability.

The study, appearing in the journal Pediatrics, was conducted by scientists at the NIH’s Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD).

“The previous US studies in this area have focused on the mothers’ pre- and post-pregnancy weight,” said the study’s first author, Edwina Yeung, PhD, an investigator in NICHD’s Division of Intramural Population Health Research. “Our study is one of the few that also includes information about fathers, and our results suggest that dad’s weight also has significant influence on child development.”

Dr Yeung and her coauthors cited research indicating that about 1 in 5 pregnant women in the United States is overweight or obese.

In the study, authors reviewed data collected from the Upstate KIDS study, which originally sought to determine if fertility treatments could affect child development from birth through age 3. More than 5,000 women enrolled in the study roughly 4 months after giving birth in New York State (excluding New York City) between 2008 and 2010. To assess development, parents completed the Ages and Stages Questionnaire after performing a series of activities with their children. The test isn’t used to diagnose specific disabilities, but serves as a screen for potential problems, so that children can be referred for further testing.

Children in the study were tested at 4 months of age and retested 6 more times through age 3. When they enrolled, mothers also provided information on their health and weight—before and after pregnancy—and the weight of their partners.

Compared to children of normal weight mothers, children of obese mothers were nearly 70 percent more likely to have failed the test indicator on fine motor skill by age 3. Children of obese fathers were 75 percent more likely to fail the test’s personal-social domain—an indicator of how well they were able to relate to and interact with others by age 3. Children with two obese parents were nearly three times more likely to fail the test’s problem solving section by age 3.

It is not known why parental obesity might increase children’s risk for developmental delay. The authors note that animal studies indicate that obesity during pregnancy may promote inflammation, which could affect the fetal brain. Less information is available on the potential effects of paternal obesity on child development. The authors added that some studies have indicated that obesity could affect the expression of genes in sperm.

If the link between parental obesity and developmental delays is confirmed, the authors wrote, physicians may need to take parental weight into account when screening young children for delays and early interventional services.

Paul Katula is the executive editor of the Voxitatis Research Foundation, which publishes this blog. For more information, see the About page.

Recent posts

Feds boost Bay funding

Restoration efforts in the Chesapeake Bay watershed received a boost in federal funding in the budget Congress passed last month.

Md. & IL bands perform on New Year’s in...

Bands from IL and Md. once again entertained thousands of people who lined the streets of London and Rome on New Year's Day.

Howard Co. sounds an under-staffing alarm

Teachers in a Md. district have filed a grievance over missing planning and lunch periods and, as a result, putting the most vulnerable students at risk.

Top 11 school stories of 2019

We find these 11 stories to have the greatest potential for influencing activity and direction in schools for the near future.

Girls’ volleyball champs in Illinois

We congratulate the Illinois state champions in girls' volleyball: Newark, St Teresa, Sterling, & Benet Academy.

A weekend of ‘band geeks’ across America

The musical Band Geeks was in performance at a MD high school, just as marching bands from across America named a national champion.

2 dead, 3 wounded in Calif. school shooting

Another school shooting has resulted in the death of 2 California high school students. The suspect shot himself and is in custody.

Mercury makes a transit; next in 2032

A transit of Mercury occurred today and was visible from the US, provided you had sunny skies. It was one of longest possible transits.

On the Naperville BWW racist incident

A racist incident at a Naperville, IL, sports bar indicates that the threads of racism are strong, perhaps as strong as ever.

IL bill could excuse absences to vote

A proposed law in IL could give students up to two hours during the school day so they could vote in the upcoming election.

Loan forgiveness gains some bipartisan support

One Republican from GA, who used to work under Betsy DeVos at the US Education Dept, offers a plan to forgive some student loan debt.