. Author manuscript; available in PMC: 2011 Aug 1.

Published in final edited form as: Pers Individ Dif. 2010 Aug 1;49(3):187–191. doi: 10.1016/j.paid.2010.03.030

Table 1.

Demographic characteristics by group (n=580)

	Cluster B (n=236)	OPD (n=180)	HC (n=164)
Mean Age (SD)	35.08 (10.4)	36.24 (12.1)	30.04 (9.2)
Male (% of sample)	108 (45.8%)	105 (58.3%)	72 (43.9%)
Ethnicity/Racial Distribution: n (% of sample)
African/American	57 (24.2%)	51 (28.3%)	23 (14.0%)
Asian	14 (5.9%)	14 (7.8%)	27 (16.5%)
Caucasian	102 (43.2%)	75 (41.7%)	90 (54.9%)
Hispanic	53 (22.5%)	32 (17.8%)	22 (13.4%)
Unknown/Other	10 (4.2%)	8 (4.4%)	2 (1.2%)

Note: Cluster B=borderline personality disorder, narcissistic personality disorder, antisocial personality disorder, histrionic personality disorder; OPD= other personality disorders (Clusters A, C personality disorders); HC =healthy control participants.