Introduction: The aim of this study was to determine the sociodemographic and MTBI-related variables associated with executive functioning (EF).

Methods: Based on the theoretical model of Hou and colleagues, data on predisposing (age, education, premorbid IQ), precipitating (post-traumatic amnesia, loss of consciousness, presence of frontal lesions, post-accident time to evaluation) and perpetuating (anxious and depressive affects and post-concussive symptoms) factors were retrospectively collected from the medical records of 172 patients with MTBI. EF data based on the 3 processes included in Miyake's prediction model (2000) () were collected using respectively the Digit span task of the Weschler - 4 edition, the Trails A and B as well as the initiation time on the Tower of London- Drexel University.

Results: was significantly associated with education, premorbid IQ, age, anxiety, and depressive affect. was associated with education and age. No variable was associated with .

Conclusions: Following a MTBI, clinicians should consider that level of education and pre-morbid IQ may "predispose" patients to higher EF performances. They should also measure level of anxiety and depressive affect knowing that these may "perpetuate" some EF impairments (specifically the process).

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