Attention-Deficit Hyperactivity Disorder among children of immigrants: immigrant generation and family poverty.

Objectives: Attention-Deficit Hyperactivity Disorder (ADHD) is one of the most common disorders diagnosed among children in the US. However, little knowledge is available about ADHD prevalence among children of immigrants, the fastest-growing population in the US. This study seeks to examine ADHD rates among children of immigrants in different generations compared to children of US-born parents and their association with family poverty.

Design: The sample includes 83,362 children aged 0-17 from the National Health Interview Survey (NHIS) 2010-2018 data. Multivariate logistic regression model is used to estimate prevalence of ADHD among children of immigrants compared to children of US-born parents. We then compare ADHD rates among the children sample in different immigrant generations. For all analyses, we examine ADHD occurrence separately for children in families living below the poverty threshold and those at or above the poverty threshold.

Results: The odds of having ADHD were significantly lower among children of immigrants compared to children of US-born parents. Both first-generation children and second-generation children of immigrants had significantly lower odds of having ADHD than children of US-born parents. Post hoc tests find that first-generation children had lower odds of having ADHD compared to second-generation children. Likewise, additional analyses showed that children of immigrants, first-generation children in particular, were less likely to have ADHD compared to children of US-born parents, in both lower- and higher-income families.

Conclusion: Using a nationally representative sample of children, we find that the likelihood of having ADHD increases with higher generations, detecting differences in ADHD prevalence by immigration generation. Importantly, first-generation children had a significantly lower risk of having ADHD conditions compared to second-generation children and children of US-born parents, regardless of family socio-economic status. Public health policy and program development would gain from a clear comprehension of the shielding attributes of ADHD among immigrant families.