Trends in child and adolescent mental health in Catalonia in the context of the covid-19 pandemic during the 2020–2021 school year()

INTRODUCTION: The SARS-CoV-2 pandemic has had a great impact on the physical and psychological health of the population. The aim of this study was to evaluate child and adolescent mental health in a population cohort along the 2020–2021 school year. METHODS: This was a prospective longitudinal study of a cohort of children from 5–14 years of age in Catalonia, Spain, performed from September 2020 to July 2021. The participants were randomly selected and accompanied by their primary care paediatrician. Evaluation of risk of psychopathology was performed using the Strengths and Difficulties Questionnaire (SDQ) carried out by one of the legal guardians of the child. We also collected sociodemographic and health variables of the participants and their nuclear family. Data were collected by an online survey through the RedCap platform at the beginning of the academic year and at the end of each trimester (4 cuts). RESULTS: At the beginning of the school year, 9.8% of the patients were probable cases of psychopathology compared to 6.2% at the end of the year. The perception of the level of preoccupation of the children for their health and that of their family was related to presenting psychopathology, especially at the beginning of the year, with the perception of a good family atmosphere being always related to lower risk. No variable related to COVID-19 was associated with an altered SDQ result. CONCLUSIONS: Along the 2020–2021 school year, the percentage of children with a probability of presenting psychopathology decreased from 9.8% to 6.2%.