"For American-Indian youths, our study suggests that intervention and prevention programs should consider a supportive family environment as an important focus," said ManSoo Yu, assistant professor in the MU School of Social Work and Public Health Program. "Healthy relationships protect adolescents against exposure to violence and negative social environments, and therefore, may lower their risk for drug involvement. Practitioners also can encourage adolescents to connect with religious organizations, which can reduce negative peer influence and increase positive family relationships."

In the study, Yu examined the mediating roles of positive environment (healthy families and religious affiliation) on the associations between negative environment (addicted family members, deviant peers and negative school environment) and illicit drug symptoms. Identifying mediators can help clarify interrelationships among various risk and protective factors in predicting health-risk behaviors, Yu said.

Yu found that positive family relationships mediated the impact of addicted family members, violence victimization and negative school environment on illicit drug symptoms. The findings expand prior research that indicates healthy families protect adolescents from delinquent behaviors, including drug problems. Further, religious affiliation mediated the impact of deviant peers and negative school environment on positive family relationships.

Yu also found that addicted family members and deviant peers directly predicted illicit drug use, while positive family relationships and religious affiliation mediated their impact on drug use. The results are consistent with previous findings that poor familial environment (notably, family members' substance problems) and misbehaving friends are strong predictors of substance problems in youths.

"Establishing effective treatment and prevention plans requires a greater understanding of the complex associations between negative and positive variables in predicting substance use disorders such as nicotine dependence and alcohol and drug abuse," Yu said. "It is clear that strategies to help youths with drug problems can be more effective by addressing family, school and peer contexts."

The rate of illicit drug use among American-Indian adolescents age 12-17 is approximately 19 percent, significantly higher than rates for Whites, Blacks and Hispanics (around 10 percent) and Asians (6.7 percent), according to the U.S. Department of Health and Human Services.

The study, "Positive family relationships and religious affiliation as mediators between negative environment and illicit drug symptoms in American Indian adolescents," was published in the July issue of Addictive Behaviors. This study was funded by the National Institute on Drug Abuse, the University of Missouri System Research Board and the MU Margaret W. Mangel Faculty Research Catalyst Fund.

Note: If no author is given, the source is cited instead.

• Staying Healthy
• Pharmacology
• Teen Health

• Addiction
• Illegal Drugs
• Relationships

• Substance abuse
• Sex education
• Self-esteem
• Conflict resolution research
• Drug addiction
• Cyber-bullying