Cerebrospinal fluid concentrations of NFL in boxers test A correlate with Boxing Exposure.

<p>Boxing Exposure is a score that was constructed to calculate the total risk for traumatic brain injury before testing. It consists of three factors: 1. The total amount of bouts the last week before test A (1–3), 2. The boxers own grading of the bouts (easy (1), intermediate (2) or tough (3) and 3. The mean of the expert grading (3 boxing experts graded the boxers considering head trauma during total boxing career, 1 to 5). The results of these three factors were added in the boxing exposure score. Neurofilament light protein (NFL) analysed in cerebrospinal fluid (CSF) after bout (test A) correlated with Boxing Exposure, R = 0.396, p = 0.030.