Table 1. Comparison of Men and Women with SPD Based on Demographic and Clinical Measures.

	Men (N=17)	Women (N=78)	F	p
Age, years	32.6 (13.0)	32.5 (11.7)	0.001	0.97
Racial-ethnic group, non-White Caucasian #	3 [17.7%]	21 [26.9%]	7.533c	0.11
Education level	5.9 (1.3)	5.9 (1.3)	<0.001	0.986
Age at onset of SPD, years	15.6 (8.8)	13.2 (7.9)	1.2469	0.267
MIDAS Focused	16.1 (4.9)	18.1 (5.0)	1.897	0.172
MIDAS Automatic	19.6 (4.7)	18.2 (4.3)	1.2926	0.2586
Clinical Global Impression-Severity	4.0 (0.5)	4.3 (0.8)	2.428	0.1226
Sheehan Disability Scale	6.4 (5.8)	8.5 (7.4)	1.202	0.276
BIS Attentional	16.3 (4.2)	16.2 (4.0)	<0.001	0.986
BIS Motor	21.6 (4.3)	21.2 (3.8)	0.1396	0.7096
BIS Non-planning	24.7 (5.2)	23.1 (5.0)	1.2579	0.2651
QOL T-score	41.8 (14.5)	44.8 (12.8)	0.7011	0.4046
Participants with at least one first-degree relative(s) with SPD or trichotillomania, N [%]	3 [17.7%]	1 [1.3%]	6.625	0.0101
Participants with at least one first-degree relative(s) with Obsessive-Compulsive Disorder, N [%]	1 [5.9%]	1 [1.3%]	1.094	0.2957
Participants with at least one first-degree relative(s) with a substance use disorder, N [%]	2 [11.8%]	14 [17.94%]	2.643	0.450

^#For simplicity, data are presented in binary form, but likelihood ratio test examined breakdown across all racial-ethnic subgroups. c: Likelihood ratio chi-square test.

MIDAS: Milwaukee Inventory for Dimensions of Skin Picking; BIS: Barratt Impulsivity Scale; QOL: Quality of Life Inventory.