TABLE 3 .
Cohen’s d Effect Sizes Comparing the ADC Values of the TBI and Control Groups in the Early Post-Injury Interval (1–4 Weeks)(Rank-Ordered by Effect Size)
| 95% CIs |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Brain Region | Nstudies | NTBI | Ncontrol | Mean dw | dw SE | Lower Limit | Upper Limit | Nfs | %OL | Q | Study References |
| Total Corpus Callosum | 1 | 10 | 10 | 1.95# | 0.45 | 3.46 | 8 | 19 | Wilde et al., 2008 | ||
| Right Cingulum Bundle | 1 | 12 | 11 | 1.87# | 0.89 | 2.85 | 8 | 21 | Wu et al., 2010b | ||
| Left Cingulum Bundle | 1 | 12 | 11 | 1.24# | 0.35 | 2.14 | 5 | 36 | Wu et al., 2010b | ||
| Composite whole brain White Matter | 2 | 22 | 20 | −0.44 | 0.40 | −1.22 | 0.34 | 26 | 69.6 | 32.58NS | Chu et al., 2010; Virji-Babul et al., 2013 |
Note. #indicates moderate or large and significant effect, with adequate Nfs; 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. A significant Q indicates a heterogeneous distribution. ADC = apparent diffusion coefficient.