Audrey M. Shillington

Deconstructing contexts of binge drinking among college students

This paper examines the contextual characteristics common to binge drinking occasions reported by college students. In addition, the study examines the influence of such contextual characteristics on alcohol-related problems experienced by students. Using random sampling and telephone interview methodology, 401 college students attending a large southern California university were surveyed by trained research staff. The interview protocol was based on the Core Survey and included context of use questions from the College Risk Assessment Guide. Results of stepwise multiple logistic regressions indicate that drinking with friends and events with food available protect against alcohol problems, while drinking events in which illicit drugs are available present higher risk for problems. Implications for future research and prevention are discussed.

Self-report stability of adolescent substance use: are there differences for gender, ethnicity and age?

This study used the National Longitudinal Survey of Youth and is the first to examine a 2-year report stability of substance use among adolescents while stratifying for gender, ethnicity, and age. This study examined lifetime use and age at onset report stability, and the internal consistency of reports while excluding nonusers and incident cases (respondents who may have initiated substance use between the two reporting periods) from the analyses. Report agreement of lifetime use for each substance was over 80% and was highest among alcohol users and lowest for cigarette and marijuana users. Report agreement was higher for female compared to male cigarette users. External consistency of lifetime use of cigarettes and marijuana was higher for whites compared to Hispanic or African American adolescents. Internal consistency was high but lifetime use reports were more stable than age at onset reports.

Multi-ethnic comparison of risk and protective factors for adolescent pregnancy.

Data from a longitudinal cohort study, the National Longitudinal Survey of Youth, are used to examine the differences in risk and protective factors for adolescent pregnancy among four ethnic groups—non-Hispanic Whites, non-Hispanic Blacks, Hispanics, and American Indians. The objective is the identification of differential predictors for adolescent pregnancy among each ethnic group included in the analyses, as well as better comprehension of the differences among women who experienced a teen pregnancy compared to those who did not. The model for this sample of 5,053 women indicates that higher self-esteem and a higher level of maternal education are protective factors; living in poverty as a young teen, substance use, and adolescent marriage are factors associated with an increased risk for teen pregnancy. Further, the results indicate that unique sets of predictors exist for each ethnic group. Implications of these findings are discussed.

Substance use problems reported by college students: combined marijuana and alcohol use versus alcohol-only use.

This study examines the relationships among selected demographic characteristics, alcohol use only, alcohol plus marijuana use and substance-use related problems. Data are from 409 randomly selected undergraduate college students attending a large urban university. Poly-substance users were more likely than alcohol only users to be younger and experience all substance-use related problems studied. The relationship between poly-substance use and increased substance use-associated problems was also identified when controlling for other common predictors of substance use problems.

Blood alcohol concentrations among bar patrons: A multi-level study of drinking behavior.

This paper presents data from a study that collected observational data, survey data, and breath samples to estimate blood alcohol concentrations (BrAC) from patrons attending 30 bars. The study examines: (1) drinking behavior and settings prior to going to a bar; (2) characteristics of the bar where respondents are drinking; (3) person and environmental predictors of BrAC change (entrance to exit). Purposive sampling of bars that cater to young adults gave a sample of 30 bars. Patrons were randomly selected from bars (n=839). Approximately half of the sample was female (48.7%). Nearly three-quarters of participants reported drinking before attending the bar. Serving practices of the bars were observed; majority of bars served excessive amounts of alcohol in short periods of time. On average, those who drank before attending the bar had BrACs at approximately half the legal limit. Implications for responsible beverage service coupled with law enforcement strategies are discussed.

College Undergraduate Ritalin Abusers in Southwestern California: Protective and Risk Factors

During the past five years, a few studies have reported that college students are using stimulants such as Ritalin without a prescription. To date, studies on college Ritalin/Adderall use have been from samples in the eastern or midwestern U.S. This study was designed to examine risk and protective factors associated with Ritalin/Adderall use among a college sample in Southern California. Our findings indicate that 11.2% of students reported past year and over 4% reported past 30 day use of Ritalin/Adderall. In our final analysis, students with lower GPAs, in a fraternity/sorority, not in a committed relationship, and who smoke and use other drugs were more likely to report past year and past 30 day Ritalin/Adderall use. Implications for prevention programming of these findings are discussed.

Parental Monitoring: Can It Continue to Be Protective Among High-Risk Adolescents?

ABSTRACT Adolescence is a developmental period during which many youth experiment with risk practices. This paper examined the association of parental monitoring with a range of alcohol and other drug (AOD) use behaviors among high-risk youth, while controlling for other demographic and environmental variables previously found to be associated with AOD use. Participants were recruited as part of a longitudinal evaluation study of four youth drop-in centers located in Southern California. These centers served at-risk youth, including Hispanic, Lesbian/Gay/Bisexual/Questioning (LGBQ), and homeless and runaway youth. Participants were aged 14 to 24 and were new attendees at the drop-in centers. Results from logistic regression analyses revealed that while controlling for demographic and environmental variables, adolescents who reported less parental monitoring were more likely to report lifetime use of cigarettes, marijuana, and methamphetamine, and in the past three months, use of alcohol and binge drinking. The findings thus indicate that, even among high-risk youth, those who reported low parental monitoring were significantly more likely to use a variety of substances. Implications of these findings are discussed as they pertain to AOD prevention and interventions for children and their families.

Heavy Alcohol use Compared to Alcohol and Marijuana Use: Do College Students Experience a Difference in Substance use Problems?

This study examines the risk for alcohol and other drug (AOD) problems resulting from alcohol plus marijuana use compared to alcohol-only use. Data are from telephone interviews with 1113 randomly selected college students attending two large urban universities in the southwestern United States. Alcohol and marijuana users (dual users) were more likely to be younger and report a higher mean number of drinks per occasion and experiencing all AOD problems studied compared to alcohol-only users. Multivariate logistic regression analysis findings reveal the relationship between dual-substance use and increased risk for AOD problems remained after controlling for demographics and alcohol use behaviors. Such problems include greater odds of legal problems and riding with or being an intoxicated driver. College students using alcohol and marijuana are at much higher risk for AOD problems than are students who use alcohol only, even when heavy drinking is taken into account.

Self-Reported Age of Onset and Telescoping for Cigarettes, Alcohol, and Marijuana: Across Eight Years of the National Longitudinal Survey of Youth.

Smoking, drinking, and illicit drug use are leading causes of morbidity and mortality, both during adolescence as well as later in life. The determination of how well national and local policy and intervention efforts address teen substance use depends largely on the collection of valid and accurate data. Assessments of substance use rely heavily on retrospective self-report measures, but the reliability and validity, however, may be limited by various sources of measurement error. This study utilizes four waves of data from the National Longitudinal Survey of Youth spanning eight years. Results from multiple linear regression analyses showed that the single most consistent variable associated with telescoping was the number of years since the substance was first reported. Time since first report was the single consistent variable and was strongly associated with telescoping in each wave-to-wave comparison for all three substances under study. Implications for policy and research are discussed.

Predictors of partying prior to bar attendance and subsequent BrAC

Pre-drinking (e.g., pre-gaming, pre-loading) occurs frequently among young adult and college-aged drinkers and is associated with increased intoxication as well as alcohol-related problems. The purpose of the following study was to examine pre-drinking behaviors in situ, and to test whether drinking intentions mediate the relationship between heavy episodic drinking history and pre-drinking behaviors. We randomly selected a sample of 1040 young adults bar patrons at 32 bars in a major metropolitan city in Southern California and asked participants to complete an interview concerning drinking behavior as well as provide a breath sample used to measure breath alcohol concentration. We used multilevel path analysis to test two meditational models. Results showed drinking intentions mediated the relationship between heavy episodic drinking history and pre-drinking behavior as well as the relationship between heavy episodic drinking history and level of pre-drinking intoxication. Gender did not moderate these meditational relationships suggesting similar pre-drinking behaviors for both men and women. Potential methods to prevent pre-drinking behaviors in this population of young people are discussed.