Table 4.

Analysis of diffusion parameter values for brain areas identified in univariate between‐group analysis of concussed athletes at medical clearance to return to play (RTP) relative to when they were symptomatic (SYM) in Figure 1 (bottom row)

	SYM‐CTL	p	RTP‐CTL	p	RTP‐SYM	p
FA (×10−2)	0.22 [−0.36, 0.84]	0.673	−0.81 [−1.56, 0.01]	0.041	−0.90 [−1.18, −0.62]	<0.001
AD mm2/s (×10−5)	1.13 [0.13, 2.17]	0.039	−0.10 [−1.13, 0.99]	0.923	−1.53 [−2.16, −0.92]	<0.001
RD mm2/s (×10−5)	1.05 [−0.93, 3.15]	0.290	−1.52 [−0.91, 3.97]	0.259	0.49 [−0.10, 1.16]	0.136
ODI (×10−2)	0.37 [−1.82, 2.57]	0.586	3.24 [0.97, 5.55]	0.013	2.48 [1.55, 3.51]	0.001
V IC	n/a
V ISO	n/a

Pairwise comparisons are conducted between controls (CTL), SYM, and RTP. Results are reported as mean and repeated‐measures bootstrapped 95% confidence interval, along with empirical p‐values. Diffusivity values AD and RD are reported in units of mm²/s, while all other measures are dimensionless and range from 0 to 1.