Table 3.

Diffusion values in the very preterm (VPT) and control groups

Diffusion measure	Controls, mean (SD)	VPT, mean (SD)	Mean difference (95% CI)	P
FA	0.51 (0.04)	0.46 (0.04)	−0.04 (−0.06, −0.03)	<0.001
Dispersion	0.19 (0.02)	0.21 (0.02)	0.02 (0.02, 0.03)	<0.001
Density	0.43 (0.03)	0.42 (0.03)	−0.007 (−0.02, 0.006)	0.3

The values are averaged from within the cluster of voxels where fractional anisotropy (FA) was significantly lower in the VPT group compared with controls (P < 0.05, after threshold‐free cluster enhancement and correction for the family‐wise error rate). CI, confidence interval; SD, standard deviation.