Association Between Healthy Eating Index and Maternal Pregnancy Behaviors with Adolescent ADHD: A NHANES Cross-Sectional Analysis

This study examined relationships between maternal pregnancy behaviors, adolescent dietary quality (measured by HEI-2020), and ADHD diagnosis using data from 3,859 adolescents in NHANES. Higher dietary quality scores and maternal non-smoking during pregnancy were associated with lower ADHD reporting rates, with stronger associations observed in specific subgroups based on maternal age and birth weight.