Table 1.

Participant characteristics for main outcomes. Percent of participants in scoring categories of the Michigan Alcoholism Screening Test (MAST) and the South Oaks Gambling Screen (SOGS). Means (standard deviations) of impulsivity measures for men and women. The total score and the subscale scores are given for the Barratt Impulsiveness Scale version 11, as are three outcomes from the Stop Task.

Measure		Men	Women
MAST	Score	N=73	N=124
	0-2a	45.2	62.1
	3-5b	28.8	25.8
	6-14c	26.0	12.1
SOGS	Score	N=73	N=124
	0d	32.9	78.2
	1-4e	56.2	21.0
	5+f	11.0	0.8
BIS-11	Subscale (Nmen, Nwomen)
	Total (72, 122)	66.33 (9.31)	60.66 (9.85)***
	Attentional (70, 122)	18.26 (4.51)	16.78 (3.63)**
	Non Planning (73, 124)	24.53 (4.64)	22.77 (4.35)*
	Motor (73, 123)	23.53 (3.72)	21.61 (3.76)***
Stop Task	Measure (Nmen, Nwomen)
	Go Trial Accuracy (70, 120)	.96 (.03)	.97 (.03)
	Go RT (73, 124)	468.66 (100.15)	496.28 (99.64)
	SSRT (64, 108)	201.69 (56.47)	193.86 (63.15)

Note: Different sample sizes across impulsivity measures reflect removal of outliers. Data are presented with out respect to health-risk behavior status. Go RT = Go Trial Reaction Time, SSRT = Stop Signal Reaction Time.

^aNo apparent problem with drinking,

^bEarly or middle problem drinker,

^cProblem drinker,

^dNo problem with gambling,

^eSome problems with gambling,

^fProbable pathological gambler.

^*p =.05,

^**p=.01,

^***p=.001.