Table 1. FDG-PET (n = 33). PSQI, Pittsburgh Sleep Quality Index; NSI, Neurobehavioral Symptom Inventory.
DemographicsMean (SD), range
  Age (years)31.5 (9.4), 23–60
  Education (years)13.7 (1.5), 11–16
  Race, nonwhite, n (%)8 (24.2%)
  APOE-ε4–positive (%)8 (25.8%)
Blast exposures
  Number of blast-related mild TBIs
during military service (lifetime)
21.2 (26.7), 1–102
Median = 11
  Number of lifetime mild TBIs with
loss of consciousness
2.3 (2.5), 0–11
Median = 2
  Time since last blast-related mild
TBI (years)
3.6 (1.5), 1–7
Median = 4
Behavioral and neurological measures
  CAPS score (3 missing)55.6 (30.5), 4–106
  PHQ-9 score9.6 (7.4), 0–25
  PSQI score (4 missing)9.3 (5.1), 1–19
  AUDIT-C score4.8 (2.4), 0–10
  NSItotal score29.4 (17.8), 2–77