Disaster Exposure and Temperament as Predictors of Adolescent Substance Use

Area of Science:

• Psychology
• Public Health
• Disaster Research

Background:

• Children exposed to natural disasters face unique vulnerabilities, especially at-risk youth.
• Understanding substance use patterns following trauma is crucial for targeted interventions.

Purpose of the Study:

• To investigate how disaster exposure severity influences the timing and frequency of alcohol and marijuana use in at-risk youth.
• To examine the moderating roles of temperamental fear and inhibitory control on substance use outcomes.

Main Methods:

• Longitudinal study of 346 at-risk youth followed for 4 years post-tornado.
• Cox proportional hazards regressions for use initiation and zero-inflated negative binomial regressions for use frequency.

Main Results:

• Disaster severity predicted increased frequency of marijuana use.
• Alcohol initiation risk increased with exposure severity, but only for youth with high fear.
• Higher inhibitory control was associated with delayed alcohol use initiation.

Conclusions:

• Substance use initiation and frequency should be studied individually.
• Interventions for disaster-affected youth must consider both exposure severity and individual temperamental traits like fear and control.