Figure 2. Group-Level Differences in CSP Ratio.

(A) Data from former American football players and unexposed asymptomatic controls indicate a greater CSP ratio in former American football players. (B) The dichotomized dataset illustrates a significantly greater CSP ratio in former professional players compared with unexposed asymptomatic controls and former college players. Note: n.s. indicates no significance, * indicates p < 0.05, ** indicates p < 0.01, and error bars represent 95% confidence intervals. CSP = cavum septum pellucidum.