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Table 3 Mean and standard deviation of volumes in each group in the CHOP sample, and Cohen’s d for the difference between groups. Note that groups are not matched for age, sex, and IQ, and that the Cohen’s d effect size estimate does not account for these factors

From: Evidence against the “normalization” prediction of the early brain overgrowth hypothesis of autism

CHOP group means

 

ASD mean (SD)

TDC mean (SD)

Cohen’s d

TBV

1231.06 (117.58)

1197.48 (115.7)

0.29

GMV

749.45 (68.59)

726.56 (69.86)

0.33

WMV

482.64 (60.58)

471.94 (58.46)

0.18

Cortical GMV

567.24 (58.52)

549.15 (59.31)

0.31

Cortical WMV

450.07 (57.18)

439.86 (55.38)

0.18

Cerebellum

148.65 (15.14)

144.29 (13.86)

0.3

Cerebellar GMV

116.07 (11.96)

112.22 (10.99)

0.34

Cerebellar WMV

32.57 (5.07)

32.07 (5.03)

0.1

Lateral ventricles

11.39 (7.03)

9.88 (5.76)

0.23

Third ventricle

0.81 (0.28)

0.73 (0.27)

0.3