. Author manuscript; available in PMC: 2010 Jun 20.

Published in final edited form as: Psychol Med. 2008 Sep 24;39(8):1347–1354. doi: 10.1017/S0033291708004376

Table 2.

Gray and white matter brainstem volumes (cc)

	Autism		Control			t-test		TBV as covariate
	N = 22		N = 22			df = 42		df = (2; 41)
	Mean (range)	SD	Mean	(range)	SD	T	p	F	p
Gray	19.05 (13.71–25.17)	3.39	21.44	(14.30–26.07)	2.74	−2.58	0.014	6.80	0.013
White	17.33 (11.69–27.11)	3.40	17.55	(13.35–24.96)	3.17	−0.22	0.828	0.01	0.920
Total	36.38 (28.64–41.56)	4.23	38.99	(31.43–49.33)	4.54	−1.97	0.055	4.57	0.039

TBV = total brain volume