The study explored the link between the COMT gene ValMet polymorphism and the risk of delirium in patients with mild to moderate traumatic brain injury (TBI).
During the first four days of admission, 19% of the 89 patients developed delirium, with the Val/Val polymorphism significantly increasing delirium risk after adjusting for other variables.
While the Met allele showed potential for better functional outcomes, it was not significant in multivariable analysis, and delirium itself was a strong predictor of poorer functional and cognitive outcomes.