Table 1.

Sample description: means (standard deviations; SD) or percentages.

	Means (SD) or percentages
Demographic variables
Age	39.0 (1.4)
Race/ethnicity	50% African American; 50% Puerto Rican
Independent variables
Impulsivity	1.6 (0.7)
Low self control	2.0 (0.7)
Dependent variables
The number of sex partners	1.1 (0.6)
Alcohol use prior to intercourse	0.8 (1.1)
Illicit drug use prior to intercourse	0.04 (0.3)
Unprotected anal intercourse	0.4 (5.0)
Unprotected vaginal intercourse	0.5 (5.1)

Note. Answer options for alcohol or illicit drugs use prior to intercourse: never (0), a few times a year or less (1), about once a month (2), several times a month (3), once a week or more (4), always (5).

Data used in this study were collected in the area of New York City during 2014–2016.