Table 1 IQ scores (WASI) and cerebral parameters for the PTSD and control groups, showing mean and ±1 standard deviation, as well as inferential tests and p-values
From: Neuroanatomical features in soldiers with post-traumatic stress disorder
N | PTSD | Control | t-Test statistic | p-value |
|---|---|---|---|---|
23 | 24 | |||
WASI score | 109.1 ± 13.5* | 117.4 ± 14.2 | −2.05 | 0.047 |
Total brain volume (10 × 5 mm3) | 31.37 ± 2.13 | 31.07 ± 2.64 | 0.42 | 0.674 |
Grey matter volume (10 × 5 mm3) | 14.24 ± 1.45* | 13.35 ± 1.35 | 2.15 | 0.037 |
White matter volume (10 × 5 mm3) | 9.95 ± 0.93 | 10.23 ± 1.12 | −0.93 | 0.357 |
Total surface area (10 × 5 mm2) | 1.93 ± 0.11 | 1.89 ± 0.16 | 0.83 | 0.412 |
Mean cortical thickness (mm) | 3.20 ± 0.12* | 3.28 ± 0.12 | −2.63 | 0.011 |
Total cortical volume (10 × 5 mm3) | 5.06 ± 0.43 | 5.14 ± 0.58 | −0.51 | 0.61 |