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TABLE 2: 
Longitudinal Analysis
MeasureFirst ExaminationSecond ExaminationChange
MeanSDMeanSDMeanSD
Control subjects (n = 4)
 Age (y)35.16.5NANANANA
 %VBP*87.03.885.52.5−1.491.7
 CSF (cm3)187.951.4208.738.720.926.4
 VBP (cm3)1270.4151.51237.2131.0−33.323.8
Patients with TBI (n = 7)
 Age (y)36.715.1NANANANA
 %VBP*85.14.780.95.6−4.16†1.68
 CSF (cm3)223.676.3270.3105.746.734.8
 VBP (cm3)1279.4159.11122.1110.3−157.3237.6
  • Note.—NA indicates not applicable.
  • * %VBP = VBP/(VBP + CSF volume).
  • † P = .022 shows significant difference between control and patient groups.