Suicidal Ideation After Mild Traumatic Brain Injury: A Consecutive Canadian Sample

Area of Science:

• Neuroscience
• Psychiatry
• Public Health

Background:

• Concussion and mild traumatic brain injury (mTBI) can lead to long-term psychological effects.
• Suicidal ideation (SI) is a significant concern following brain injury, but contributing factors and temporal development are not fully understood.

Purpose of the Study:

• To identify psychosocial and injury-related factors associated with suicidal ideation (SI) after concussion or mild traumatic brain injury (mTBI).
• To examine the time course of suicidal ideation development at 3 and 6 months post-injury.

Main Methods:

• Prospective cohort study of 871 patients with mTBI assessed at 3 and 6 months post-injury.
• Psychiatric and social-demographic data collected via clinic assessments.
• Statistical analyses included Chi-square, t-tests, and logistic regression to identify independent predictors of SI.

Main Results:

• Suicidal ideation (SI) was present in 6.3% at 3 months and 8.2% at 6 months post-mTBI.
• Independent predictors of SI at both 3 and 6 months included speaking English as a second language (ESL) and being a motor vehicle collision (MVC) passenger.
• History of depression and marital status were associated with SI at 3 months only.

Conclusions:

• Suicidal ideation (SI) is prevalent in the early months following mild traumatic brain injury (mTBI).
• Specific demographic (ESL) and injury-related factors (MVC passenger) are consistently associated with SI.
• Early screening for predisposing factors and vigilant monitoring for suicidality are crucial for patients recovering from mTBI.