Table 1.
Demographic data and clinical characteristicsa
| PTSD (n = 89) | Non‐PTSD (n = 88) | p value | |
|---|---|---|---|
| Age (years)b | 42.48 ± 10.42 | 43.50 ± 10.06 | .51c |
| Gender (M/F) | 28/61 | 25/63 | .78d |
| Handedness (R/L) | 89/0 | 88/0 | NA |
| Years of educationb | 7.08 ± 3.20 | 6.88 ± 3.30 | .68c |
| Time since trauma (months)b | 11.04 ± 2.33 | 11.60 ± 2.40 | .12c |
| Gray matter volume (cm3)e | 1,092.15 ± 193.17 | 1,127.94 ± 142.49 | .16c |
| Sparsity of networksf | 86.17 ± 1.17 | 85.99 ± 1.34 | .35c |
| PCL score | 46.29 ± 14.82 | 28.09 ± 7.22 | NA |
| CAPS score | 54.77 ± 17.97 | 22.83 ± 11.31 | NA |
PTSD = posttraumatic stress disorder; PCL = PTSD checklist; CAPS = Clinician‐administered PTSD scale.
a
Data are presented as means±standard deviations. No significant differences were identified between the pediatric PTSD and the trauma controls in age, gender, years of education, time since trauma, and gray matter volume.
b
Age, years of education, and time since trauma were determined at the time of MRI scanning.
c
p value was obtained by two‐tailed two‐sample t test.
d
p value was obtained by two‐tailed Pearson χ 2 test.
e
Gray matter volume was obtained from whole brain after segmentation.
f
Sparsity of individual networks before normalization.