Table 1

Mean (SD) Hippocampal volumes in monozygotic twins with PTSD, their trauma-unexposed twins, and in trauma-exposed and trauma-unexposed monozygotic twins without PTSD
PTSD (n = 24) Non-PTSD (n = 46)
Trauma exposed (n = 12) Trauma unexposed (n = 12) Trauma exposed (n = 23) Trauma unexposed (n = 23)
Right HC volume (ml) 3.32 (0.59) 3.26 (0.39) 3.76 (0.54) 3.61 (0.48)
Left HC volume (ml) 3.34 (0.46) 3.49 (0.57) 3.65 (0.50) 3.63 (0.45)
Total HC volume (ml) 6.66 (0.83) 6.75 (0.90) 7.41 (0.93) 7.25 (0.69)

Hall et al.

Hall et al. Biology of Mood & Anxiety Disorders 2012 2:21   doi:10.1186/2045-5380-2-21

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