Table 2.
Female-Only Meta-analysis of the Effect of Posttraumatic Stress Disorder on Subcortical Region Volumes Adjusting for Age and Intracranial Volume
| Region | Cohen’s d (95% CI) | SE | p Value | %diff | I2 | phet | Cases | Control Subjects |
|---|---|---|---|---|---|---|---|---|
| Nucleus Accumbens | −0.22 (−0.39 to −0.061) | 0.083 | .0071a | −2.32 | 1.50 | .16 | 305 | 427 |
| Amygdala | −0.14 (−0.30 to 0.015) | 0.081 | .075 | −1.46 | 0.0047 | .18 | 307 | 427 |
| Caudate | 0.008 (−0.15 to 0.17) | 0.081 | .92 | 0.19 | 0.00 | .67 | 307 | 429 |
| Hippocampus | −0.31 (−0.47 to −0.15) | 0.081 | .00012b | −2.42 | 0.00 | .90 | 308 | 428 |
| Lateral Ventricle | 0.081 (−0.077 to 0.24) | 0.081 | .32 | 3.49 | 0.00 | .87 | 308 | 430 |
| Pallidum | 0.10 (−0.12 to 0.32) | 0.11 | .39 | 1.13 | 35.30 | .068 | 293 | 414 |
| Putamen | −0.051 (−0.21 to 0.11) | 0.083 | .54 | −0.49 | 0.0064 | .60 | 291 | 416 |
| Thalamus | −0.13 (−0.32 to 0.073) | 0.10 | .22 | −0.84 | 23.74 | .12 | 299 | 419 |
CI, confidence interval.
Comparison was significant at the p < .05 level.
Comparison was significant after a Bonferroni correction for eight subcortical regions examined (p < .0063).