Children's mental health during the COVID-19 pandemic: a population-based cohort study in the United States

Purpose: Examine children's mental health symptoms, including changes during the COVID-19 pandemic. Methods: The COVID Experiences Surveys, designed to be representative of the U.S. household population, were administered online to parents of children aged 5-12 years (wave 1 (W1), October-November 2020, n = 1561; wave 2 (W2), March-May 2021, n = 1287). We modeled changes in children's symptoms of anxiety, depression, and psychological stress and examined associations between demographic characteristics, COVID-19 related experiences, and protective factors with symptoms across both waves using generalized estimating equations.Results: Based on parent-report, children's symptoms of anxiety and depression decreased from W1 to W2 (Delta tscore anxiety = -1.8 [95% confidence intervals (CI): -2.5, -1.0]; Delta t-score depression = -1.0 [CI: -1.7, - 0.3]). Psychological stress remained consistent. Across waves, older children and children with an emotional, mental, developmental, behavioral, physical, or medical condition were more likely to have specific poor mental health symptoms. Poor mental health symptoms were more likely among children with several contextual stressors (e. g., economic stress, parental emotional strain) and less likely among children with protective factors (e.g., daily routines, neighborhood cohesion).Conclusions: Establishing programs that support mental health, improving access to mental health services, and fostering collaborations to advance children's mental health is important.