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Table 1 Demographics and clinical features

From: Regional brain volume differences between males with and without autism spectrum disorder are highly age-dependent

  ASD TDC Statistics
( n = 86) ( n = 90)  
Age, mean (SD) 15.0 (4.6) 15.7 (6.0) P = 0.348
Handedness, right (%) 77 (89.5) 84 (93.3) P = 0.367
Intelligence quotient (IQ)    
  Full-scale IQ 102.9 (16.9) 114.4 (10.7) P < 0.001
  Verbal IQ 104.3 (17.3) 114.6 (9.6) P < 0.001
  Performance IQ 102.6 (17.4) 112.4 (12.8) P < 0.001
Autism Diagnostic Interview-Revised   
  Social 20.4 (5.5) - -
  Communication 14.9 (4.6) - -
  Repetitive and stereotyped behaviors 7.3 (2.7) - -
  1. ASD, autism spectrum disorder; TDC, typically developing control; SD, standard deviation; IQ, intelligence quotient.