Table 1

Meta-analysis by tract and value

Group	Invariant	Number of datasets	N*¹	N*²	Lower 95% CI	Upper 95% CI	Z-value	p Value	Heterogeneity I square (%)	Publication bias
CC	FA	15	280	244	−0.466	−0.035	−2.274	0.023	27.153	0.684
	ADC	3	39	35	−0.391	1.886	1.287	0.198	82.682	NA
	MD	6	154	100	0.062	0.581	2.425	0.015	0.000	NA
Genu of CC	FA	12	248	218	−0.537	0.224	−0.805	0.421	72.933	0.535
	ADC	3	39	35	−0.313	2.869	1.574	0.115	89.874	NA
	MD	4	132	88	−0.120	0.438	1.117	0.264	0.000	NA
Midbody of CC	FA	9	197	156	−0.404	0.034	−1.651	0.099	4.188	NA
Splenium of CC	FA	15	280	244	−0.689	−0.046	−2.238	0.025	65.870	0.610
	ADC	3	39	35	−0.928	2.564	0.918	0.358	91.997	NA
	MD	6	154	100	0.113	0.950	2.490	0.013	53.164	NA
IC	FA	8	117	105	−0.317	0.478	0.397	0.691	46.970	NA
CR	FA	3	41	57	−0.564	0.272	−0.684	0.494	0.000	NA

N*1: number of patients of mTBI, N*2: number of control subjects.
ADC, apparent diffusion coefficient; CC, corpus callosum; CR, corona radiata; FA, fractional anisotropy; IC, internal capsule; MD, mean diffusivity