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Table 1 Demographic characteristics and whole brain volume measures for the study groups (mean ± SD).

From: Regional gray matter volumetric changes in autism associated with social and repetitive behavior symptoms

  AD (N = 24) Control (N = 23)
  Mean (SD) Range Mean (SD) Range
Age (y) 20.79 (10.58) 7.8–44 21.41 (10.91) 7.8–44
Education (y) 10.42 (3.43) 6–16 12.09 (5.06) 6–20
VIQ* 94.96 (20.98) 55–134 118.00 (13.18) 92–134
PIQ* 95.67 (18.84) 62–128 115.73 (9.57) 100–138
FSIQ* 94.75 (20.64) 60–133 118.74 (11.18) 99–139
Total Gray Matter (ml) 758.92 (62.63) 650–895 771.95 (60.28) 617–901
Total White Matter (ml) 444.10 (50.83) 357–553 463.32 (44.99) 359–570
Brain/Intracranial ratio .68 (.03) .61–.72 .67 (.04) .57–.71
  1. VIQ = Verbal intelligence quotient (IQ), PIQ = Performance IQ, FSIQ = Full scale IQ; * p < .05;