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Table 2 Demographic, cognitive, and behavioral characteristics of the NF1 and control groups

From: Steady-state visual evoked potentials in children with neurofibromatosis type 1: associations with behavioral rating scales and impact of psychostimulant medication

  NF1 group (N = 28) Control group (N = 28) Group comparison
Mean (SD or %) Mean (SD or %) T test or χ2 p
Age (years) 9.39 (2.41) 8.88 (2.41) 0.80 0.43
Sex (N females) 15 (53.57%) 13 (46.43%) 0.29 0.59
Household income ($CAN) 85 608.70 (32 610.29) 124 652.17 (96 939.35) − 1.83 0.08
IQ 89.00 (10.96) 108.61 (13.32) − 6.02 0.0000002
Conners 3 Inattention Scale 68.23 (15.42) 53.52 (10.87) 3.89 0.0003
Conners 3 Global Index 65.31 (17.91) 53.43 (10.44) 2.83 0.007
SRS-2 total score 58.50 (11.80) 48.39 (7.12) 3.88 0.0003
CBCL total problems 57.32 (11.23) 47.30 (9.92) 3.50 0.001
  1. Note: IQ results are presented in standard scores. Results from the Conners 3, the SRS-2 and the CBCL questionnaires are presented in T-scores, with higher scores representing more symptoms
  2. Abbreviations: NF1 neurofibromatosis type 1, SD standard deviation, IQ intellectual quotient, Conners 3 Conners 3rd edition, SRS-2 Social Responsiveness Scale 2nd edition, CBCL Child Behavior Checklist