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. Author manuscript; available in PMC: 2017 Nov 1.
Published in final edited form as: Autism Res. 2016 Jun 8;9(11):1169–1182. doi: 10.1002/aur.1643

Table 3.

Group Means and Standard Deviations for Total Cerebral Volume, Total Gray Matter Volume, and Total White Matter Volume for Each Subgroup: Typically Developing (TD), ASD With Normal-Sized Brains (ASD-N), and ASD With Disproportionate Megalencephaly (ASD-DM)

Time 1
Time 2
Time 3
TD ASD-N ASD-DM TD ASD-N ASD-DM TD ASD-N ASD-DM
Total cerebral volume   986.26
(76.89)		 1011.42
(75.20)		 1151.67
(81.59)*,** 		1028.56
(80.88)		 1056.10
(76.68)		 1208.02
(88.27)*,** 		1065.03
(81.20)		 1086.62
(72.36)		 1251.56
(82.06)*,**
Gray matter   622.71
(45.11)		   634.46
(44.45)		   721.97
(44.85)*,** 		  633.16
(48.57)		   648.08
(50.78)		   740.46
(47.35)*,** 		  636.60
(49.88)		   655.52
(46.48)		   748.92
(40.74)*,**
White matter   363.51
(34.13)		   376.95
(35.01)		   429.70
(39.74)*,** 		  395.40
(40.51)		   408.02
(33.09)		   467.55
(49.52)*,** 		  433.71
(47.18)		   431.10
(34.16)		   502.63
(48.44)*,**

Note. Significant contrast between TD and ASD-DM

*

P < 0.001; significant contrast between ASD-N and ASD-DM

**

P < 0.001.