Publication date: Dec 01, 2025

This study examined the association between COVID-19 and the risk of self-harm, suicidal ideation and poisoning in school-aged children and adolescents. We utilized the 2019-2021 Utah All Payers Claims Database (APCD) to identify school-age children and adolescents aged 6-15 years in 2019. COVID-19 diagnosis, self-harm, suicidal ideation and poisoning were identified using ICD-10 diagnosis codes. Baseline characteristics were assessed, and Inverse Probability Weighting (IPW) was applied to balance these characteristics between the two groups (those with COVID-19 and those without). Weighted logistic regression was employed to identify factors associated with these outcomes in 2021. The study included 180,925 participants (48% female; mean [SD] age in 2019: 10. 6 [2. 9] years), of whom 45,056 (24. 9%) had a COVID-19 in 2020, and 51. 5% were aged 11-15 years. Subjects with COVID-19 had twice the odds of suicidal ideation (AOR = 2. 00, p 

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