TABLE 1

Parent- and student-reported symptom ratings and postinjury neurocognitive test performance

Ratings and PerformanceRc+Rc–
nPreinjury (RBL)PostinjuryPη2nPreinjury (RBL)PostinjuryPη2
Symptom ratingsa
 Student report: ages 8 to 12332.21 (2.43)b2.68 (2.88).390.02605.41 (5.14)b10.51 (5.89)<.0010.41
 Student report: ages 13 to 18584.12 (5.23)c4.30 (5.49).790.0011527.08 (7.43)c27.53 (19.11)<.0010.56
 Parent report: ages 5 to 181004.62 (7.75)d6.30 (8.38).0030.082256.54 (7.05)d28.64 (21.90)<.0010.55
Neurocognitive performancee
 Percentage of impaired scores104623517<.001f
 Frequency of impaired scores
  124 (23)129 (55)<.001
  211 (11)75 (32)<.001
  34 (4)45 (19)<.001
  ≥42 (2)26 (11).006
  • Values are expressed as mean (SD) or n (%).

  • a Parent- and student-reported PCSI Total Symptom scores included retrospective report of preinjury symptoms and current postinjury symptoms obtained during the clinic visit. Measures included the 17-item PCSI-SR8 for 10- to 12-year-olds, 21-item PCSI-SR13 for 13- to 18-year-olds, and 20-item PCSI-P for parents. Students aged 8 to 12 reported symptoms on a Guttmann scale ranging from 0 to 2 (PCSI-SR8), and students aged 13 to 18 (PCSI-SR13) and their parents (PCSI-P) reported symptoms on a Guttmann scale ranging from 0 to 6.

  • b PCSI self-report ages 8 to 12, P = .001, Cohen’s d = 0.79.

  • c PCSI self-report ages 13 to 18, P < .05, Cohen’s d = 0.46

  • d PCSI parent report, P < .05, Cohen’s d = 0.26.

  • e Impaired scores were defined as performance on computer and paper-and-pencil administered measures falling 1.5 SDs below the mean of the normative sample.

  • f Cohen’s d = 0.61.