Similarly, the Hedge's g of externalizing symptoms was regressed on time since injury with GCS included as a covariate in a random effects meta-regression to determine the impact on time since injury on externalizing symptoms. The overall model was nonsignificant Q(2) = 4.31, p = 0.1159. Goodness of fit analyses revealed that the model accounted for a significant, non-zero proportion of variance Q (12) = 26.04, p = 0.0106, R2 analog = 0.22. Only GCS was found to be a have a significant coefficient 𝛽 = .0533, p = 0.0421. All coefficients and confidence intervals are included in Table ? .