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. Author manuscript; available in PMC: 2019 Jun 1.
Published in final edited form as: J Adolesc Health. 2018 Feb 1;62(6):681–687. doi: 10.1016/j.jadohealth.2017.11.290

Table 2.

Prevalence and means of key study variables.

Variable Cumulative % Range across waves 1–7
Child past year substance use
 Alcohol 26% 0% – 14%
 Cigarettes 16% 0% – 9%
 Marijuana 24% 0% – 14%
Substance-specific parenting practices
 Family rules about alcohol -- M = 3.5 – 3.7
 Family rules about cigarettes -- M = 3.5 – 3.8
 Family rules about drugs -- M = 3.6 – 3.9
 Child alcohol use with permission 12% 3% – 9%
 Child cigarette use with permission 2% 0.4% – 1.4%
 Child involvement in family alcohol use 34% 10% – 25%
 Child involvement in family cigarette use 21% 5% – 17%
Family management -- M = 3.4 – 3.8
Parent substance use (past month)
 Binge drinking 36% 13% – 19%
 Cigarette use 48% 29% – 46%
 Marijuana use 29% 14% – 21%
Parent substance use norms
 Pro alcohol norms -- M = 2.0 – 2.9
 Pro cigarette norms -- M = 1.9 – 2.8
 Pro marijuana norms -- M = 1.8 – 3.1