New Research Highlights Maternal Heart Health, Socioeconomic Factors Affecting Children's Development
Multiple new studies highlight key factors affecting children's health and development. Research shows maternal cardiovascular health during pregnancy significantly impacts child developmental delays, with poor heart health increasing risk by 62%. A separate study found family finances and neighborhood opportunities account for about 16% of variability in children's brain function, while parental concern about illness proved highly accurate for detecting serious conditions in children.
New studies reveal that maternal cardiovascular health during pregnancy, family socioeconomic status, and parental concern about illness are all significant factors in children's health and development. A study published June 23 in JAMA Network Open found that expectant mothers in poor heart health were 62% more likely to have children who suffer from developmental delays, while a separate study in Science found that family finances and neighborhood opportunities account for about 16% of variability in children's brain function.
The maternal heart health study, conducted by researchers at Tohoku University in Japan, analyzed data from more than 8,000 mothers who gave birth between July 2013 and March 2017. Researchers assessed the mothers' heart health based on the American Heart Association's Life's Essential 8 checklist, which evaluates diet, physical activity, nicotine exposure, sleep, cholesterol, blood glucose, blood pressure, and body mass index. About 17% of children born to women in poor heart health suffered developmental delays, compared with 12% of women with moderate heart health and 9% of women with excellent heart health. Women with moderate heart health were 30% more likely to have a child with developmental delays.
The personal-social domain, involving how children interact with others and express emotions, was most affected, with children more than twice as likely to suffer delays. The communication domain, measuring children's ability to use language and gestures, was least affected, but children born to women in poor heart health were still 40% more likely to suffer delays. A physician who reviewed the findings recommended that women learn and use the Life's Essential 8 framework to boost their heart health during pregnancy, emphasizing a Mediterranean diet, at least 30 minutes of physical activity five days a week, and seven to eight hours of sleep daily.
A study published June 11 in Science analyzed brain scans from nearly 12,000 children aged 9 and 10, comparing them to 649 different variables that could affect development. The socioeconomic status of a child's family had the strongest relationship to their brain structure and function, with family finances and neighborhood opportunities accounting for about 16% of the variability in children's brain function. Of the top 40 variables linked to brain function, 37 were socioeconomic, and of the top 40 tied to brain structure, 35 were socioeconomic.
Researchers found that the parts of the brain affected by socioeconomic factors are the same ones most sensitive to sleep and stress, suggesting that family finances affect children's brains indirectly by stressing them and causing sleep loss. When researchers controlled for socioeconomic factors, the link between IQ scores and brain structure or function diminished greatly, with roughly 70% of those links no longer statistically significant. Among children from well-to-do families, the link between IQ and brain function or structure vanished completely.
A separate study published Feb. 17 in JAMA Network Open found that parental concern is a powerful tool for detecting serious illness in children. Researchers tracked nearly 2,400 children and teens treated at a Finnish hospital's emergency department, finding that about one in four had a severe illness requiring intensive care, surgery, or a prolonged hospital stay. A single question about parental worry accurately identified 91% of children who turned out to be seriously ill, performing better than comprehensive health questionnaires focused on symptoms.
However, the parental concern questions were not as effective at ruling out cases where a child wasn't sick. The best-performing question identified healthy children only about 73% of the time, while the parental worry question identified healthy kids just 18% of the time. Researchers concluded that while parental concern is an important red flag, it should be interpreted alongside clinical assessment to avoid unnecessary escalation of care.