. Author manuscript; available in PMC: 2014 Jun 1.

Published in final edited form as: Dev Psychol. 2012 Jul 16;49(6):1151–1164. doi: 10.1037/a0029309

Table 2.

Descriptive Statistics

Variable name	Mean (SD)	Range	n(%) reporting >0 behaviors/symptoms
Days in past month drank alcohol (age 18)	1.95(4.29)	0–30	190(40.5)
Cigarettes per day, past month (age 18)	2.49(6.19)	0–30	117(24.9)
Partner drinks heavily	.15(.36)	0 – 1	70(14.9)
Partner smokes	.39(.49)	0 – 1	184(39.2)
Comorbid problem behavior
Alcohol abuse or dependence diagnosis	.13(.35)	0 – 1	63(13.4)
Tobacco dependence	.18(.38)	0 – 1	78(16.6)
Illicit drug abuse or dependence diagnosis	.08(.28)	0 – 1	37(7.9)
Crime	.22(.59)	0 – 4	60(12.8)
Risky sexual behavior	.40(.66)	0 – 4	171(36.5)