Exposure to Multiple Natural Disasters and Externalising and Internalising Behavior: A Longitudinal Study of Adolescents.

Purpose: As natural disasters become more frequent and more severe, there is a corresponding need to understand their relationship with child and adolescent mental health, and in particular, to understand exposure to multiple natural disasters. This study assesses the relationship between exposure to both single and multiple disasters and adolescent internalising and externalising behavior.

Methods: The study used five waves of a nationally representative longitudinal Australian dataset. Exposure to sudden-onset (fires, floods, storms) and slow-onset (drought) disasters was collected across five waves. Adolescent internalising and externalising behavior collected in the final three waves using the self-reported Strengths and Difficulties Questionnaire. Random effects regressions assessed sudden- and slow-onset disasters and multiple disaster exposure, controlling for geographic and socioeconomic variables.

Results: Exposure to multiple disasters was associated with adverse adolescent outcomes. Two or more sudden- and slow-onset disaster exposures in the last 12 months was related to more conduct problems. Exposure to multiple sudden-onset disasters in the current and previous waves was related to increased problems with peers. A single exposure to either sudden- or slow-onset disasters was not associated with Strengths and Difficulties Questionnaire outcomes.

Discussion: The study findings suggest that multiple exposure to disasters has a negative association with adolescent wellbeing. These findings suggest that, rather than adapting to disasters, youth exposed to multiple disasters suffer more than their peers, including peers exposed to a single disaster.