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Environmental influences on Child Health Outcomes


Prenatal exposure to organophosphate pesticides not associated with autism-related traits in children in large NIH study

A large NIH study found no link between prenatal organophosphate pesticide exposure and autism-related traits in children. Despite earlier studies suggesting cognitive challenges and ADHD, the study's findings indicate these pesticides may not be associated with autism-related traits at relatively low exposure levels.

SourceEnvironmental influences on Child Health Outcomes·JournalJAMA Pediatrics·TypeObservational study·DateAug 25, 2026

Higher fluoride levels in public drinking water during pregnancy may be linked to differences in children's cognition scores, NIH-funded study finds

A new NIH-funded study found associations between higher fluoride levels in public drinking water during pregnancy and lower child cognition scores, particularly in fluid reasoning. The study, which included 2,514 children, suggests that higher fluoride levels may impact cognitive development.

SourceEnvironmental influences on Child Health Outcomes·JournalAmerican Journal of Epidemiology·TypeObservational study·DateAug 18, 2026

A healthy diet during pregnancy associated with lower exposure to some—but not all—chemicals, NIH study finds

A new study of nearly 1,500 pregnant participants found that following dietary guidelines may reduce exposure to many environmental chemicals from food and everyday products. However, the same dietary pattern does not lower exposure to all chemicals, with higher levels found in certain pesticides on fresh produce.

SourceEnvironmental influences on Child Health Outcomes·JournalAmerican Journal of Clinical Nutrition·TypeObservational study·DateJul 8, 2026

Prenatal smoking associated with higher risk of mental health challenges in children

A large study funded by the National Institutes of Health's ECHO Program found that prenatal smoking is associated with behavioral and mental health challenges in children. The study examined thousands of children across the U.S., identifying periods when exposure may be most impactful.

SourceEnvironmental influences on Child Health Outcomes·JournalDevelopment and Psychopathology·TypeObservational study·DateApr 6, 2026

Housing conditions and outdoor air pollution together affect children’s asthma risk, new ECHO study shows

A new study found that children growing up in homes with water damage and exposed to high levels of outdoor air pollution have a greater risk of developing asthma. The study also revealed that having a dog during infancy can reduce the risk of asthma in children.

SourceEnvironmental influences on Child Health Outcomes·JournalEnvironmental Epidemiology·TypeObservational study·DateFeb 4, 2026

Prenatal and early-life pollution exposures may influence childhood blood pressure patterns, ECHO study finds

A new study from the ECHO Program found that exposure to fine particulate matter (PM2.5) and nitrogen dioxide (NO2) before and after birth may influence childhood blood pressure patterns. High blood pressure in children is a growing concern worldwide, with nearly 80% increase over two decades.

SourceEnvironmental influences on Child Health Outcomes·JournalEnvironmental Research·TypeObservational study·DateJan 14, 2026

Toddlers showed slightly fewer behavioral problems during COVID-19 pandemic, NIH study finds

A new study published in JAMA Network Open found that toddlers in the US experienced slightly fewer emotional and behavioral problems during the COVID-19 pandemic. The research, which analyzed data from over 3,000 children, suggests that some toddlers may have shown resilience during this time.

SourceEnvironmental influences on Child Health Outcomes·JournalJAMA Network Open·TypeObservational study·DateSep 3, 2025

Vitamin D during pregnancy may play a role in children’s cognitive development, ECHO study suggests

A new study by the Environmental influences on Child Health Outcomes (ECHO) Cohort suggests that higher vitamin D levels during pregnancy may be associated with better cognitive test scores in children. Children of Black mothers, in particular, showed strongest association between vitamin D and cognitive development.

SourceEnvironmental influences on Child Health Outcomes·JournalAmerican Journal of Clinical Nutrition·TypeObservational study·DateAug 6, 2025

Maternal cardiometabolic health during pregnancy associated with higher blood pressure in children, NIH study finds

A new NIH study found that maternal cardiometabolic health before and during pregnancy is associated with higher blood pressure in children. The study analyzed data from 12,480 mother-child pairs and identified three key risk factors: pre-pregnancy obesity, gestational diabetes, and high blood pressure during pregnancy.

SourceEnvironmental influences on Child Health Outcomes·JournalJAMA Network Open·TypeObservational study·DateMay 8, 2025

Children born in lower-opportunity neighborhoods may face higher incidence rates of asthma with recurrent exacerbations, NIH study finds

A new NIH study found that children born in lower-opportunity neighborhoods are more likely to experience repeated asthma flares requiring emergency care. Non-Hispanic Black children have the highest incidence rates of severe childhood asthma, also known as asthma with recurrent exacerbations (ARE).

SourceEnvironmental influences on Child Health Outcomes·JournalJournal of Allergy and Clinical Immunology·TypeObservational study·DateApr 9, 2025

For teens' mental health, strong friendships matter more than social media use, NIH study finds

A new NIH study funded by the Environmental influences on Child Health Outcomes (ECHO) Program found that teens with strong, high-quality friendships tend to have better mental health. The study suggests that emphasizing ways to bolster the quality of their social relationships could help address the current youth mental health crisis.

SourceEnvironmental influences on Child Health Outcomes·JournalJournal of Adolescent Health·TypeObservational study·DateMar 12, 2025

NIH study finds no significant link between time spent in childcare and young children's mental health, even amid early adversity

A new NIH study has found that spending time in childcare does not significantly affect young children's mental health, even among those facing early adversity. The study followed over 2,000 parent-child pairs and found no link between hours spent in childcare and symptoms of anxiety, depression, or aggression.

SourceEnvironmental influences on Child Health Outcomes·JournalDevelopment and Psychopathology·TypeObservational study·DateDec 17, 2024

Food insecurity in early life, pregnancy may be linked to higher chance of obesity in children, NIH-funded study finds

A new NIH-funded study found that children who experienced food insecurity during early childhood or whose mothers experienced it during pregnancy had a higher BMI and increased chance of developing obesity. Researchers explored how neighborhood food access affected child body mass index and obesity over time.

SourceEnvironmental influences on Child Health Outcomes·JournalJAMA Pediatrics·TypeObservational study·DateSep 16, 2024

Eating fish but not omega-3 supplements during pregnancy associated with lower likelihood of autism diagnosis, NIH-funded study finds

A new study funded by the National Institutes of Health found that consuming fish during pregnancy was associated with a lower likelihood of autism spectrum disorder (ASD) diagnosis, particularly in females. The study also found no significant association between omega-3 supplements and autism diagnosis.

SourceEnvironmental influences on Child Health Outcomes·JournalAmerican Journal of Clinical Nutrition·TypeObservational study·DateSep 3, 2024

Neighborhood impact on children's well-being shifted during COVID-19 pandemic, ECHO study suggests

A new ECHO study reveals that neighborhood characteristics played a lesser role in child well-being during the COVID-19 pandemic compared to pre-pandemic periods. The pandemic altered how people interacted with their neighborhoods, making factors like green spaces and recreation less important.

SourceEnvironmental influences on Child Health Outcomes·JournalEnvironmental Research·TypeObservational study·DateJul 11, 2024

No significant correlation found between labor-inducing drug during childbirth and future risk of ADHD and autism spectrum disorder in children, study finds

A large cohort study found no association between synthetic oxytocin exposure during childbirth and increased risk of ADHD or autism in offspring. Interestingly, sOT was linked to lower ADHD risk among children born to mothers with pre-pregnancy obesity.

SourceEnvironmental influences on Child Health Outcomes·JournalJournal of Neurodevelopmental Disorders·TypeObservational study·DateMay 28, 2024

Neighborhood-level poverty and food insecurity during pregnancy associated with lower birthweight and small for gestational age infants, NIH study finds

A recent NIH study found that living in low-income neighborhoods with limited food access during pregnancy is associated with lower birthweight and higher odds of babies born small for gestational age. However, individual food insecurity was not linked to birth outcomes.

SourceEnvironmental influences on Child Health Outcomes·JournalAmerican Journal of Clinical Nutrition·TypeObservational study·DateMar 22, 2024

NIH study finds flame-retardant chemicals may increase risk of preterm birth, higher birth weight

A recent NIH study found that exposure to organophosphate ester flame retardants during pregnancy may increase the risk of preterm birth, particularly in female infants. Higher concentrations of certain OPE markers were also associated with higher birth weights, which can be a sign of potential complications.

SourceEnvironmental influences on Child Health Outcomes·JournalEnvironmental Health Perspectives·TypeObservational study·DateJan 25, 2024

Early breastfeeding linked to lower risk of childhood obesity, regardless of mother’s weight, NIH study finds

A new NIH study finds that consistently breastfeeding infants in their first three months is associated with a lower risk of childhood obesity, regardless of the mother's pre-pregnancy BMI. The study suggests that health professionals can encourage and promote breastfeeding among all women, especially those who have obesity.

SourceEnvironmental influences on Child Health Outcomes·JournalPEDIATRICS·TypeObservational study·DateJan 11, 2024

NIH study suggests maternal inflammation risk factors associated with children's behavioral and emotional regulation

A NIH-funded study found associations between maternal prenatal inflammation and children's attention, anxiety, depression, and aggression. The research used the Child Behavior Checklist to measure aggressive behavior, anxiety/depression, and attention problems in 4,595 participants aged 6-18 years.

SourceEnvironmental influences on Child Health Outcomes·JournalJournal of the American Academy of Child & Adolescent Psychiatry·TypeObservational study·DateDec 7, 2023

ECHO research examines nutrition data's value from pregnancy to adolescence in understanding child health

Researchers now have access to a large amount of diet information collected from over 33,000 pregnancies and 31,000 children. This de-identified data, available through the National Institute of Child Health and Human Development's DASH Hub, will help answer important questions about nutrition and child health.

SourceEnvironmental influences on Child Health Outcomes·JournalCurrent Developments in Nutrition·DateDec 4, 2023

NIH study validates new scale for measuring pandemic-related traumatic stress in children and adults

The Pandemic-related Traumatic Stress Scale (PTSS) measures stress related to the COVID-19 pandemic and identifies those with higher levels of stress. The study found caregivers had the highest PTSS scores, followed by adolescents, pregnant or postpartum individuals, and children.

SourceEnvironmental influences on Child Health Outcomes·JournalPsychological Assessment·TypeObservational study·DateNov 6, 2023

NIH study identifies foods to help pregnant people optimize intake of key nutrients

Researchers found that no single food meets daily requirements for six essential nutrients during pregnancy, but some low-calorie options like raw seaweed and ready-to-drink nutritional shakes can help fill the gaps. The study highlights a variety of nutrient-rich foods and beverages that pregnant people can add to their diets.

SourceEnvironmental influences on Child Health Outcomes·JournalJournal of Nutrition·TypeObservational study·DateSep 27, 2023

NIH study finds association between elevated phthalate levels and increased risk of postpartum depression

A new NIH study found an association between higher prenatal phthalate levels and a slightly increased risk of postpartum depression. Exposure to chemicals like phenols, phthalates, and parabens during pregnancy may influence hormone levels and contribute to the development of postpartum depression symptoms.

SourceEnvironmental influences on Child Health Outcomes·JournalJAMA Psychiatry·TypeObservational study·DateSep 20, 2023