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. Author manuscript; available in PMC: 2014 Apr 9.

Published in final edited form as: J Psychiatr Res. 2013 Jun 18;47(9):1247–1253. doi: 10.1016/j.jpsychires.2013.05.001

Table 1.

Sample characteristics.

	Healthy volunteer (N = 10)	Personality disorder (N = 28)	P value
Demographic variables
Age (years)	32.0 ± 8.0	33.1 ± 7.5	.705^a
Gender (M/F)	9/1	19/9	.236^b
Race (white/non-white)	4/6	20/8	.127^b
SES class score	33.4 ± 11.9	28.3 ± 10.6	.214^a
Physical variables
Height (cm)	176.8 ± 9.0	173.4 ± 9.6	.337^a
Weight (kg)	78.2 ± 9.6	73.1 ± 15.7	.351^a
Behavioral variables
LHA aggression	4.9 ± 4.8	7.9 ± 5.4	.129^a
BDHI aggression	13.7 ± 8.8	21.9 ± 10.6	.036^a
EPQ-2 impulsivity	5.5 ± 4.4	7.4 ± 5.5	.347^a
BIS-11 impulsivity	56.3 ± 6.3	87.1 ± 14.3	.037^a
GAF score	83.4 ± 4.2	58.6 ± 10.3	.001^a
Glutamate variables
Raw CSF level (ng/ml)	142.0 ± 50.5	116.1 ± 48.9	.162^a
Adjusted CSF level^c	.20 ± .68	−.07 ± .99	.427^a

^a

Significance level after t-test.

^b

Significance level after Fischer Exact Test.

^c

Adjusted for demographic and physical variables, see text.