TABLE 4 .
95% C.I. |
|||||||||||
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Brain Region | Nstudies | NTBI | Ncontrol | Mean dw | dw SE | Lower Limit | Upper Limit | Nfs | %OL | Q | Study References |
Whole brain | 2 | 41 | 30 | −3.78 | 3.03 | −9.71 | 2.16 | 36 | 3 | 45.40* | Caeyenberghs et al., 2011; Adamson et al., 2013 |
Cerebellum | 1 | 24 | 17 | −3.28# | −4.23 | −2.34 | 15 | 5 | Caeyenberghs et al., 2011 | ||
Total Corpus Callosum | 6 | 118 | 117 | −3.08# | 0.74 | −4.52 | −1.63 | 86 | 7 | 83.40* | Caeyenberghs et al., 2011; Levin et al., 2008; Scheibel et al., 2011; Wilde et al., 2006b; Wozniak et al., 2007; Wu et al., 2010a |
Left ventromedial | 2 | 41 | 45 | −2.42 | 1.94 | −6.21 | 1.38 | 22 | 13 | 18.59* | Levin et al., 2008; Scheibel et al., 2011 |
Supracallosal | 1 | 14 | 14 | −1.98# | −3.26 | −0.70 | 9 | 19 | Wozniak et al., 2007 | ||
Posterior Limb Internal Capsule | 4 | 74 | 74 | −1.95# | 0.63 | −3.18 | −0.72 | 35 | 19 | 25.61* | Caeyenberghs et al., 2011; Kurowski et al., 2009; Levin et al., 2008; Scheibel et al., 2011 |
Anterior Limb Internal Capsule | 4 | 74 | 74 | −1.86# | 0.58 | −3.00 | −0.73 | 33 | 21 | 22.29* | Caeyenberghs et al., 2011; Kurowski et al., 2009; Levin et al., 2008; Scheibel et al., 2011; Wilde et al., 2011 |
Anterior corona radiata | 1 | 24 | 17 | −1.59# | −2.29 | −0.88 | 7 | 26 | Caeyenberghs et al., 2011 | ||
Left dorsolateral | 3 | 90 | 84 | −1.54# | 0.50 | −2.51 | −0.56 | 20 | 29 | 13.28* | Levin et al., 2008; Levin et al., 2011; Scheibel et al., 2011 |
Body CC | 6 | 138 | 137 | −1.53# | 0.25 | −2.02 | −1.05 | 40 | 29 | 14.22* | Kurowski et al., 2009; Levin et al., 2008; Levin et al., 2011; Scheibel et al., 2011; Wilde et al., 2006b; Wu et al., 2010a |
Right dorsolateral | 3 | 90 | 84 | −1.51# | 0.50 | −2.48 | −0.53 | 20 | 29 | 13.46* | Levin et al., 2008; Levin et al., 2011; Scheibel et al., 2011 |
Genu CC | 7 | 179 | 168 | −1.40# | 0.34 | −2.06 | −0.74 | 42 | 32 | 42.72* | Ewing-Cobbs et al., 2008; Kurowski et al., 2009; Levin et al., 2008; Levin et al., 2011; Scheibel et al., 2011; Wilde et al., 2006b; Wu et al., 2010a |
Right ventromedial | 2 | 41 | 45 | −1.34# | 0.24 | −1.81 | −0.86 | 11 | 35 | 4.42NS | Levin et al., 2008; Scheibel et al., 2011 |
Right frontal lobe | 3 | 139 | 130 | −1.19# | 0.13 | −1.45 | −0.93 | 14 | 37 | 0.09NS | Levin et al., 2011; Max et al., 2012; Oni et al., 2010 |
Left frontal lobe | 3 | 139 | 130 | −1.18# | 0.13 | −1.44 | −0.92 | 14 | 38 | 2.12NS | Levin et al., 2011; Max et al., 2012; Oni et al., 2010 |
Splenium CC | 6 | 130 | 129 | −1.12# | 0.29 | −1.70 | −0.55 | 28 | 41 | 21.91* | Ewing-Cobbs et al., 2008; Kurowski et al., 2009; Levin et al., 2008; Scheibel et al., 2011; Wilde et al., 2006b; Wu et al., 2010a |
Uncinate fasciculi | 1 | 40 | 37 | −1.08# | −1.56 | −0.60 | 4 | 42 | McCauley et al., 2011 | ||
Corticospinal tract | 1 | 24 | 17 | −1.08# | −1.74 | −0.42 | 4 | 42 | Caeyenberghs et al., 2011 | ||
Brainstem | 1 | 24 | 17 | −1.03# | −1.69 | −0.37 | 4 | 43 | Caeyenberghs et al., 2011 | ||
Left arcuate fasciculus | 1 | 9 | 9 | −1.01# | −1.99 | −0.03 | 4 | 44 | Scheibel et al., 2011 | ||
Left Inferior Fronto-Occipital fasciculus | 1 | 9 | 9 | −0.97 | −1.95 | 0.005 | 4 | 45 | Scheibel et al., 2011 | ||
Left uncinate fasciculus | 5 | 162 | 138 | −0.97# | 0.12 | −1.20 | −0.74 | 19 | 45 | 4.23NS | Johnson et al., 2011; Levin et al., 2011; Max et al., 2012; Scheibel et al., 2011; Schmidt et al., 2013; Wilde et al., 2011 |
Right uncinate fasciculus | 5 | 162 | 138 | −0.93# | 0.12 | −1.16 | −0.70 | 18 | 48 | 3.14NS | Johnson et al., 2011; Levin et al., 2011; Max et al., 2012; Scheibel et al., 2011; Schmidt et al., 2013 |
Anterior Commissure | 1 | 16 | 16 | −0.88# | −1.61 | −0.16 | 3 | 49 | Wilde et al., 2006a | ||
Right Inferior Fronto-Occipital fasciculus | 1 | 9 | 9 | −0.88 | −1.85 | 0.08 | 3 | 48 | Scheibel et al., 2011 | ||
Isthmus | 1 | 41 | 31 | −0.87# | −1.36 | −0.39 | 3 | 49 | Ewing-Cobbs et al., 2008 | ||
Cerebral peduncle | 1 | 24 | 17 | −0.87# | −1.52 | −0.22 | 3 | 49 | Caeyenberghs et al., 2011 | ||
Right temporal lobe | 3 | 125 | 119 | −0.86# | 0.13 | −1.12 | −0.59 | 10 | 50 | 3.09NS | Levin et al., 2008; Levin et al., 2011; Max et al., 2012 |
Cingulum Bundle | 1 | 40 | 37 | −0.85# | −1.31 | −0.38 | 3 | 50 | McCauley et al., 2011 | ||
Orbito-frontal White Matter | 1 | 40 | 37 | −0.80# | −1.26 | −0.33 | 3 | 53 | McCauley et al., 2011 | ||
Superior fasciculus | 2 | 23 | 26 | −0.79# | 0.30 | −1.38 | −0.20 | 6 | 53 | 2.73NS | Kurowski et al., 2009; Wozniak et al., 2007 |
Left Centrum Semiovale | 1 | 44 | 44 | −0.79# | −1.40 | −0.17 | 3 | 55 | Max et al., 2012 | ||
Right cingulate | 3 | 104 | 91 | −0.77# | 0.35 | −1.46 | −0.08 | 9 | 53 | 8.92* | Levin et al., 2011; Scheibel et al., 2011; Wilde et al., 2010 |
Left cingulate | 3 | 104 | 91 | −0.77# | 0.15 | −1.06 | −0.59 | 9 | 54 | 3.74NS | Levin et al., 2011; Scheibel et al., 2011; Wilde et al., 2010 |
Left temporal lobe | 3 | 125 | 119 | −0.76# | 0.13 | −1.02 | −0.49 | 8 | 53 | 3.37NS | Levin et al., 2008; Levin et al., 2011; Max et al., 2012 |
Right Centrum Semiovale | 1 | 44 | 44 | −0.75# | −1.36 | −0.14 | 2 | 55 | Max et al., 2012 | ||
Left frontal White Matter | 2 | 58 | 51 | −0.74# | 0.20 | −1.13 | −0.34 | 5 | 55 | 0.07NS | Kurowski et al., 2009; Levin et al., 2011 |
Superior peduncle | 1 | 24 | 17 | −0.74# | −1.38 | −0.10 | 2 | 57 | Caeyenberghs et al., 2011 | ||
Left Hippocampus | 1 | 21 | 20 | −0.70# | −1.34 | −0.07 | 2 | 57 | Juranek et al., 2012 | ||
Thalamus | 1 | 24 | 17 | −0.64# | −1.28 | −0.004 | 2 | 59 | Caeyenberghs et al., 2011 | ||
Posterior midbody | 1 | 41 | 31 | −0.60# | −1.07 | −0.12 | 2 | 61 | Ewing-Cobbs et al., 2008 | ||
Right frontal White Matter | 2 | 58 | 51 | −0.58# | 0.19 | −0.96 | −0.20 | 4 | 62 | 0.25NS | Kurowski et al., 2009; Levin et al., 2011 |
Rostral midbody | 1 | 41 | 31 | −0.57# | −1.05 | −0.09 | 2 | 63 | Ewing-Cobbs et al., 2008 | ||
Anterior midbody | 1 | 41 | 31 | −0.53# | −0.10 | −0.05 | 1 | 64 | Ewing-Cobbs et al., 2008 | ||
Left Amygdala | 1 | 21 | 20 | −0.51 | −0.72 | 0.51 | 1 | 66 | Juranek et al., 2012 | ||
Inferior fasciculus | 2 | 23 | 26 | −0.49 | 0.29 | −1.04 | −0.07 | 3 | 67 | 2.24NS | Kurowski et al., 2009; Wozniak et al., 2007 |
Right arcuate fasciculus | 1 | 9 | 9 | −0.46 | −1.09 | 0.76 | 0 | 89 | Scheibel et al., 2011 | ||
Right Amygdala | 1 | 21 | 20 | −0.43 | −1.05 | 0.19 | 1 | 70 | Juranek et al., 2012 | ||
Inferior peduncle | 1 | 24 | 17 | −0.42 | −1.04 | 0.21 | 1 | 73 | Caeyenberghs et al., 2011 | ||
Left Inferior Longitudinal Fasciculus | 3 | 103 | 94 | −0.40 | 0.14 | −0.68 | −0.11 | 3 | 72 | 3.51NS | Levin et al., 2011; Scheibel et al., 2011; Schmidt et al., 2013 |
Right Hippocampus | 1 | 21 | 20 | −0.11 | −1.13 | 0.12 | 0 | 92 | Juranek et al., 2012 | ||
Right Inferior Longitudinal Fasciculus | 3 | 103 | 94 | −0.05 | 0.14 | −0.33 | 0.23 | 2 | 96 | 7.77NS | Levin et al., 2011; Scheibel et al., 2011; Schmidt et al., 2013 |
Note. #indicates moderate or large and significant effect, with adequate Nfs; CC = corpus callosum, Nstudies = Total number of studies included in analysis, NTBI = total number of participants in traumatic brain injury (TBI) group, Ncontrol = total number of Control participants, mean dw = mean weighted effect size, SE = standard error, 95% CIs = 95% confidence intervals, Nfs = Fail safe N, %OL = percentage overlap between the distribution of scores for the TBI and Control groups, NS = nonsignificant, *p < .05. A significant Q indicates a heterogeneous distribution. Where Q statistics were sig, as indicated by *, a random-effects model was used to calculate d. FA = fractional anisotropy.