78 (17A) Evaluation of pupillometry as a diagnostic tool for concussions in NCAA football athletes

provocation scores and NPC distance were used as independent variables to predict driving outcomes.We used separate generalized linear models for each driving outcome with group, sub-test, and a group*sub-test interaction as independent variables using a Poisson distribution.This study focused on the interaction effect.Results There was a significant interaction between group and NPC distance for centerline crossings, such that each additional 1 cm NPC distance was associated with 1.34 (95% CI:1.08-1.67)greater odds of a centerline crossing in the concussion group, relative to controls (p=0.009).NPC distance in the concussion group was 6.0 cm3.7 cm compared to 3.4 cm1.7 cm in controls.No other models were statistically significant.Conclusion NPC average distance may serve as a clinical indicator for poorer vehicle control acutely post-concussion.A larger sample size is necessary to better explore the potential impact VOMS may have on detecting post-concussion driving impairments.