What question did this study set out to answer?

The study aims to explore the trajectory of irritability in children and youth during the COVID-19 pandemic and its association with mental health outcomes.

May 9, 2026JCPP AdvancesOpen Access

Trajectory of irritability in children and youth in Ontario, Canada, throughout the COVID‐19 pandemic

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The study aims to explore the trajectory of irritability in children and youth during the COVID-19 pandemic and its association with mental health outcomes.
Included 905 children and youth aged 8-17 from the Ontario COVID-19 and Kids Mental Health Study.
Measured irritability through parent and self-reports over seven time points from April 2020 to June 2022.
Utilized latent growth curve modeling to analyze irritability changes and their relationship with mental health outcomes.
Initial irritability increased in parent-reported data, then showed a linear decrease over time.
Younger age, higher parental anxiety, and lower resilience were associated with higher initial irritability levels (p<0.001).
Greater decreases in irritability were linked to lower final levels of depression, anxiety, inattention, and hyperactivity (Fs>54.59, p<0.001).

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Implication

Randomized trial explores irritability trends and mental health outcomes in children during COVID-19, highlighting implications for intervention.

Cite This Study

Cheung et al. (2026) studied this question.

synapsesocial.com/papers/69fed153b9154b0b82878962 https://doi.org/10.1002/jcv2.70119

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Implication

Randomized trial explores irritability trends and mental health outcomes in children during COVID-19, highlighting implications for intervention.

Trajectory of irritability in children and youth in Ontario, Canada, throughout the COVID‐19 pandemic

Key Points

Discussion

Implication

Cite This Study

Trajectory of irritability in children and youth in Ontario, Canada, throughout the COVID‐19 pandemic

Key Points

Discussion

Implication

Cite This Study

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