Typical Alcohol Use Research Articles

Not all drinking events are the same: Exploring 21st birthday and typical alcohol expectancies as a risk factor for high-risk drinking and alcohol problems

Alcohol expectancies are a central construct in understanding college student typical alcohol use. However, to our knowledge, there is no research addressing how alcohol expectancies for specific events (i.e. 21st birthday) are different from expectancies regarding typical drinking. We examine the extent to which 21st birthday alcohol expectancies differ from general alcohol expectancies and how 21st birthday expectancies are associated with actual alcohol use and consequences experienced on 21st birthdays, above and beyond expectancies for typical drinking. Participants were college students (N=585; 54% women) who were turning 21 within a week, and intended to drink 4/5 (female/male) drinks on their birthday. All negative expectancies (impairment, risk and aggression, negative self-perception) and positive expectancies (social, liquid courage, sex) except tension reduction were significantly greater for 21st birthday drinking than for typical drinking. While 21st birthday expectancies were not uniquely related to actual birthday drinking, several positive and negative 21st birthday expectancy subscales were associated with 21st birthday drinking-related consequences, even when controlling for typical drinking expectancies. Expectancy challenge interventions aimed specifically at these subscales may be effective at attenuating alcohol-related consequences that result from 21st birthday drinking.

Combining Trait Models of Impulsivity to Improve Explanation of Substance Use Behaviour

The UPPS–P model of impulsivity is gaining popularity among personality and substance use researchers, but questions remain as to whether its five facets have incremental validity in explaining substance use over a more parsimonious model specifying only two facets: reward drive and rash impulsiveness. In three cross–sectional studies (total N = 486), we investigated whether the novel components of the UPPS–P model (negative Urgency, Premeditation, Perseverance, Sensation seeking, Positive urgency) predicted typical and problematic alcohol and cannabis use after accounting for reward drive, rash impulsiveness and trait neuroticism (assessed with the Eysenck Personality Questionnaire). Reward drive and rash impulsiveness scores were calculated using principal components analysis of multiple scales, including UPPS–P premeditation and sensation seeking. Results showed that rash impulsiveness was a robust predictor of typical and problematic substance use. The novel facets of the UPPS–P did not improve prediction of typical substance use. The urgency scales inconsistently predicted problematic use. Specifically, negative urgency predicted one of three measures of negative consequences from alcohol use, and positive urgency only predicted negative consequences from cannabis use. Results suggest that the three novel facets of the UPPS–P model add little over a two component model in explaining substance use, although may provide preliminary evidence for the utility of a revised global urgency construct in explaining problematic substance use. Copyright © 2017 European Association of Personality Psychology

Mixing alcohol with artificially sweetened beverages: Prevalence and correlates among college students

Mixing alcohol with diet beverages, as compared to mixing the same amount of alcohol with a regular beverage, is associated with greater intoxication. This may occur because diet mixers increase alcohol absorption rates. Thus, it is plausible that the use of diet mixers may increase the risk of alcohol-related harms. The current study sought to (1) determine the rate/frequency of use in among college students, (2) examine the relationship between mixing alcohol with diet beverages and alcohol-related problems, above typical alcohol use and sensation seeking, and (3) explore key traits (gender, restricting food while drinking, and body mass index [BMI]) that may characterize users. Participants were 686 (73% female) undergraduate students who completed self-reports of alcohol use (including diet mixer use), alcohol-related problems, eating behaviors while drinking, sensation seeking, and demographic information. Results revealed that about 36% of the sample reported consuming alcohol with diet mixers, and users typically consumed this beverage at least once a month. Students who reported mixing alcohol with diet beverages experienced more alcohol-related problems. And, the more frequently one consumed this beverage, the more problems were reported. These associations were found after controlling for typical level of alcohol use and sensation seeking. No differences were observed between user-status on gender, eating behaviors while drinking, and BMI. Our findings suggest that mixing alcohol with diet beverages could be a risk factor for experiencing more alcohol-related harms. Further research is needed to understand this relationship, as it may help guide intervening efforts aimed to reduce alcohol-related risks.

Anticipated effects of alcohol stimulate craving and impair inhibitory control.

A considerable evidence base has demonstrated that priming doses of alcohol impair inhibitory control and activate motivation to consume alcohol. There is, however, a lack of studies investigating the effect of placebo-alcohol on these processes and their association with alcohol outcome expectancies (AOE). We investigated the effect of placebo-alcohol on craving and inhibitory control, and the extent to which placebo effects correlated with AOE in 32 nondependent drinkers. Participants completed questionnaires assessing typical alcohol use (fortnightly alcohol consumption, AUDIT) and AOE (measured using the Alcohol Outcome Expectancy Scale). On a within-subjects basis participants consumed a placebo-alcohol drink and control drink. Measures of craving were taken pre- and postdrink, and participants completed a go/no-go task following the drink. Craving was increased by the placebo-alcohol and, importantly, placebo-alcohol impaired inhibitory control. Furthermore expectancies of cognitive and behavioral impairment were correlated with go/no-go task performance following a placebo. Increases in craving were associated with a range of elevated outcome expectancies. This suggests that the anticipated effects of alcohol can impair inhibitory control and increase craving; therefore studies using placebo versus alcohol comparisons relative to studies using a pure no-alcohol control are underestimating the real-world effect of alcohol on these processes, which is a combination of pharmacological and anticipated effects of alcohol. Furthermore, individual differences in AOE may influence reactivity to the anticipated effects of alcohol. (PsycINFO Database Record

Celebrating St. Patrick’s Day: Students’ Expectations, Intent, and Behavior

ABSTRACTCollege students engage in risky alcohol use within a variety of contexts, including specific celebratory events. Student intentions and peer perceptions predict alcohol use; however, how these factors affect specific celebratory drinking may vary from typical alcohol use. The current study sought to better understand event-specific drinking among college students during St. Patrick’s Day, as compared to Spring Break. Undergraduate students (N = 82) at a campus with a unique traditional celebration of St. Patrick’s Day were surveyed. At Time 1, participants were asked to indicate how much alcohol they intended to drink and how much alcohol they expected other students to drink during St. Patrick’s Day and Spring Break. At Time 2, students reported on actual alcohol consumption during both events. Results indicated that participants reported greater intent to consume, expectation of peer consumption, and actual alcohol consumption during St. Patrick’s Day as compared to Spring Break. Neither sensation seeking nor impulsivity predicted alcohol use during either event. Findings are discussed in the context of understanding, preventing, and intervening with event-specific drinking among college students.

A Randomized Controlled Trial of a Telephone Intervention for Alcohol Misuse With Injured Emergency Department Patients

We conduct a randomized controlled trial to test efficacy of a telephone intervention for injured emergency department (ED) patients with alcohol misuse to decrease alcohol use, impaired driving, alcohol-related injuries, and alcohol-related negative consequences. ED patients screening positive for alcohol misuse were randomized to a 3-session telephone brief motivational intervention on alcohol, delivered by a counselor trained in motivational interviewing during 6 weeks, or a control intervention of a scripted home fire and burn safety education delivered in 3 calls. Patients were followed for 12months and assessed for changes in alcohol use, impaired driving, alcohol-related injuries, and alcohol-related negative consequences. Seven hundred thirty ED patients were randomized; 78% received their assigned intervention by telephone, and of those, 72% completed 12-month assessments. There were no differential benefits of telephone brief motivational intervention versus assessment and a control intervention in all 3 variables of alcohol use (frequency of binge alcohol use during the previous 30 days, maximum number of drinks at one time in the past 30 days, and typical alcohol use in the past 30 days), alcohol-impaired driving, alcohol-related injuries, and alcohol-related negative consequences. Despite the potential advantage of delivering a telephone brief motivational intervention in not disrupting ED clinical care, our study found no efficacy for it over an assessment and control intervention. Potential causes forourfinding include that injury itself, alcohol assessments, or the control intervention had active ingredients for alcohol change.

Clarifying observed relationships between protective behavioral strategies and alcohol outcomes: The importance of response options.

Protective behavioral strategies (PBS), or harm-reduction behaviors that can potentially reduce alcohol consumption or associated problems, have been assessed in varied ways throughout the literature. Existing scales vary in focus (i.e., broad vs. narrow), and importantly, in response options (i.e., absolute frequency vs. contingent frequency). Absolute frequency conflates PBS use with number of drinking occasions, resulting in inconsistencies in the relationship between PBS use and alcohol outcomes, whereas contingent frequency is less precise, which could reduce power. The current study proposes the use of absolute frequencies to maximize precision, with an adjustment for number of drinking days to extricate PBS use from drinking occasions, resulting in a contingent score. Study 1 examined the associations between PBS subscales using the Strategy Questionnaire (Sugarman & Carey, 2007) and alcohol outcomes, finding that in raw score form the association between PBS and typical alcohol outcomes varied greatly from significantly positive to significantly negative, but adjusted score relationships were all consistent with harm reduction perspectives. In addition, curvilinear relationships with typical alcohol use were eliminated using the score adjustment, resulting in linear associations. Study 2 confirmed the findings from Study 1 with a more precise timeframe, additional alcohol assessments, and heavier college drinkers. The relationships between alcohol outcomes and PBS in raw score form were again varied, but became consistently negative using the score adjustment. Researchers examining PBS and related constructs should consider modifying current scales to include a precise frequency response scale that is adjusted to account for number of drinking occasions. (PsycINFO Database Record

Testing a model of caffeinated alcohol-specific expectancies

IntroductionThe present study sought to further understand the association between caffeinated alcoholic beverage (CAB) use and alcohol-related risks. In particular, we focused on the role of two identified expectancies specific to CAB use: intoxication enhancement and avoidance of negative consequences. Although outcome expectancies are consistent predictors of substance use, limited research has examined expectancies related to CAB use and their association with alcohol-related behaviors, such as protecting themselves from alcohol-related harms. Consequently, the present study examined CAB-specific expectancies and protective behavioral strategies (PBS) as mediators of CAB use and negative consequences. MethodsParticipants were 322 (219 women) college drinkers who completed self-report measures of typical CAB and alcohol use, CAB-specific expectancies, PBS use, and alcohol-related harms. ResultsStructural equation modeling revealed, after controlling for typical non-CAB heavy alcohol use, a significant indirect effect of CAB use to alcohol-related problems through avoidance of negative consequences CAB expectancies and PBS use. However, intoxication enhancement expectancies did not mediate this association. ConclusionsOur findings indicate that heavier CAB use was associated with stronger expectations that drinking CABs can help avoid negative consequences. These beliefs were related to using fewer PBS when drinking and a greater likelihood of experiencing problems. Given that these expectancies may be underlying mechanisms of CAB use, their inclusion in existing alcohol interventions may be beneficial.

Monthly variations in self-report of time-specified and typical alcohol use: the Nord-Trøndelag Health Study (HUNT3).

BackgroundAggregated measures are often employed when prevalence, risk factors and consequences of alcohol use in the population are monitored. In order to avoid time-dependent bias in aggregated measures, reference periods which assess alcohol use over longer time-periods or measures assessing typical alcohol use are considered superior to reference periods assessing recent or current alcohol consumption. Alcohol consumption in the population is found to vary through the months of the year, but it is not known whether monthly variations in actual alcohol use affects self-reports of long-term or typical alcohol consumption. Using data from a large, population-based study with data-collection over two years, the aim of the present study was to examine whether self-reported measures of alcohol use with different reference periods fluctuated across the months of the year.MethodsParticipants in the third wave of the Nord-Trøndelag Health Survey (HUNT3) answered questions regarding alcohol use in the last 4 weeks, weekly alcohol consumption last twelve months, typical weekly binge drinking and typical number of alcoholic drinks consumed in a 14 day period. For each of the alcohol measures, monthly variations in reporting were estimated and compared to the overall average.ResultsMonthly variations in self-reported alcohol use were found across all alcohol measures regardless of reference period. A general tendency was found for highest level of alcohol use being reported during the summer season, however, the highest number of individuals who reported alcohol use in the last 4 weeks was found in January. Women reported substantially larger increase in weekly binge drinking during the summer months than men.ConclusionsSelf-reports of alcohol use over longer time and typical alcohol use varies according to the month the respondents are assessed. Monthly variations should therefore be taken into account when designing, analyzing and interpreting data from population-based studies aimed to examine descriptive and analytical characteristics of alcohol use in the population.

Descriptive normative beliefs and the self-regulation in alcohol use among Slovak university students.

This study aims (i) to understand how descriptive normative beliefs (DNB) about typical students' alcohol use and self-regulation (SRG) are related to alcohol use (AU) by exploring the indirect effect of SRG on AU through DNB and (ii) to explore gender differences and the differences between universities in DNB, SRG and AU. The cross-sectional data were collected online from 817 Slovak university students from four universities (75.22% females; Mage = 19.61; SD = 1.42), who filled in the AUDIT-C items, items measuring the DNB about typical students' AU and SRG. T-tests, one-way Anova and structural equation modelling were used for data analysis. Gender differences in AU and DNB were found with males having higher levels of both AU and DNB. The tested model of AU fits the data well. A significant association was found between DNB and (i) AU (positive) and (ii) SRG (negative). The analysis confirmed the existence of an indirect effect of SRG on AU through DNB. The study contributes to research concerning AU by the way in which DNB and SRG are linked to AU among Slovak university students. The research findings can also be used in developing prevention and intervention programs.

Abstract 890: Serum inflammatory biomarkers predict esophageal and lung cancer risk two years prior to diagnosis in a prospective cohort

Abstract Background: Cancer-associated inflammation drives the progression, growth, and metastasis of many established tumors, including those of the head & neck, esophagus, and lung. Limited evidence from non-aerodigestive cancers suggests that quantifiable immunologic dysfunction may precede the emergence of some clinically detectable tumors. The Golestan region of Iran provides a unique opportunity to further study the relationship between chronic inflammation and aerodigestive cancer risk, as it features a very high incidence of esophageal squamous cell carcinoma despite remarkably low prevalence of typical confounders, including tobacco and alcohol use. This study tests the hypothesis that a comprehensive panel of cancer-associated serum inflammatory biomarkers can accurately predict risk of head & neck, esophageal, and lung cancers in a prospective, high-risk cohort. Methods: This is a nested case-control pilot study of subjects enrolled in the Golestan Cohort Study, an ongoing epidemiologic project assessing cancer trends in Golestan, Iran. We measured a broad panel of cytokines, chemokines, and inflammatory molecules using Luminex® technology in serum samples collected two or more years before cancer diagnosis in 78 aerodigestive cancer cases and 81 controls. Data was analyzed using Wilcoxon rank-sum test, ROC areas of discrimination, and multivariate analysis. Results: Mean age of 159 study subjects was 60 years. Median levels (pg/ml) of several biomarkers were profoundly elevated in future esophageal and lung cancer patients, respectively, as compared to controls, including FGF-2 (341.9 and 306.7 versus 139.6, p<0.0001), GM-CSF (63.7 and 63.3 versus 21.3, p<0.0001), IFN-α2 (245.3 and 251 versus 67.6, p<0.0001), and IL-1Rα (415 and 413.2 versus 116.2, p<0.0001). Receiver operating characteristic (ROC) areas demonstrated a strong ability to distinguish esophageal and lung cancer cases from controls for FGF-2, GM-CSF, IFN-α2, IL-1Rα, and TNF-β. The highest ROC area was 88% for esophageal cancer (GM-CSF and IFN-α2) and 85% for lung cancers (GM-CSF). The same trend was not observed among head and neck cancer cases, as no biomarker had a ROC area >69% as compared to controls. Among data-linked controls, biomarker levels tended to be higher with older age, Turkmen ethnicity, and cigarette smoking, but these correlations were non-significant. Conclusions: This study provides the first direct evidence that multiple inflammatory biomarkers are coordinately elevated in future lung and esophageal cancer patients at least two years before cancer diagnosis, suggesting that baseline serum levels of certain cancer-associated biomarkers may represent a useful adjunctive screening measure to determine aerodigestive cancer risk. Citation Format: Brieze R. Keeley, Farhad Islami, Akram Pourshams, Hossein Poustchi, Jamie S. Pak, Paul Brennan, Hooman Khademi, Shu-hsia Chen, Eric M. Genden, Christian C. Abnet, Sanford M. Dawsey, Paolo Boffetta, Reza Malekzadeh, Andrew G. Sikora. Serum inflammatory biomarkers predict esophageal and lung cancer risk two years prior to diagnosis in a prospective cohort. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 890. doi:10.1158/1538-7445.AM2014-890

Drinking game play among first-year college student drinkers: An event-specific analysis of the risk for alcohol use and problems

Background: College students who play drinking games (DGs) more frequently report higher levels of alcohol use and experience more alcohol-related harm. However, the extent to which they are at risk for increased consumption and harm as a result of DG play on a given event after accounting for their typical DG participation, and typical and event drinking, is unclear. Objectives: We examined whether first-year students consumed more alcohol and were more likely to experience consequences on drinking occasions when they played DGs. Methods: Participants (n = 336) completed up to six web-based surveys following weekend drinking events in their first semester. Alcohol use, DG play, and consequences were reported for the Friday and Saturday prior to each survey. Typical DG tendencies were controlled in all models. Typical and event alcohol use were controlled in models predicting risk for consequences. Results: Participants consumed more alcohol on DG versus non-DG events. All students were more likely to experience blackout drinking consequences when they played DGs. Women were more likely to experience social-interpersonal consequences when they played DGs. Conclusion: DG play is an event-specific risk factor for increased alcohol use among first-year students, regardless of individual DG play tendencies. Further, event DG play signals increased risk for blackout drinking consequences for all students, and social-interpersonal consequences for women, aside from the amount of alcohol consumed on those occasions as well as typical drinking behaviors. Prevention efforts to reduce high-risk drinking may be strengthened by highlighting both event- and person-specific risks of DG play.

Predictors of motivation to change in mandated college students following a referral incident.

The purpose of present study was to understand factors that are related to a desire or motivation to change (MTC) alcohol use in a sample of college students mandated to receive an alcohol intervention. We examined characteristics of and reactions to the referral event, typical alcohol use involvement, and alcohol beliefs about the perceived importance of drinking in college assessed by the College Life Alcohol Salience Scale (CLASS; Osberg et al., 2010) as predictors of MTC following referral to an alcohol intervention. College students (N = 932) who presented for a mandatory alcohol intervention following a referral event (e.g., citation for underage drinking, medical attention for an alcohol-related incident, or driving under the influence) completed an assessment prior to receiving an alcohol intervention. Higher perceived aversiveness of the referral event and higher personal responsibility one felt for the occurrence of the event were positively related to higher MTC. Although alcohol beliefs about the role of drinking in college were not significantly related to either event aversiveness or responsibility, it was negatively related to MTC even after controlling for alcohol use involvement variables. Alcohol beliefs about the role of drinking in college represent an important construct that is related to increased alcohol use and alcohol-related problems and decreased MTC in a sample of college students. Interventions aimed at reducing alcohol beliefs about the role of drinking in college may be an effective strategy to reduce alcohol use and alcohol-related problems by college students.

Drinking buddies and their prospective influence on alcohol outcomes: Alcohol expectancies as a mediator.

The process by which peers or the social network influence individual alcohol use, particularly among adults, remains a necessary area of research. The purpose of the present study was to examine the longitudinal influence of "drinking buddies" on alcohol outcomes (i.e., alcohol use, heavy drinking, and alcohol-related problems) as mediated by alcohol expectancies of social facilitation. Participants were 1347 (men = 660, women = 687) newly married individuals recruited from the community. They were assessed at the time of marriage and through the fourth wedding anniversary. Longitudinal mediation across time was evaluated using latent growth modeling. Overall, the prospective association between the number of drinking buddies in the social network and all three alcohol outcomes was mediated by alcohol expectancies. In testing group invariance across gender, findings suggest that social-facilitation expectancies may be more relevant to men than women in predicting typical alcohol use and alcohol-related problems. Given that the social network may impact alcohol use at least in part through social expectancies, tailoring alcohol interventions to modify these specific beliefs may be particularly beneficial. In addition, strategies that target drinkers' social networks or their drinking buddies specifically may be useful.

College Spring Break and Alcohol Use: Effects of Spring Break Activity

This study examined the relationship between spring break vacation and changes in alcohol consumption among college students. Analyses also examined the effects of spring break activity (vacationing with friends, visiting parents, staying in college town, etc.) and selection (i.e., whether heavy drinkers are more likely to vacation with friends) on the spring break/alcohol consumption relationship. Participants were 3,720 students (46% male; 90% white; mean age = 17.96) at a large midwestern university. Students were contacted during the fall and spring of their freshman, sophomore, and junior years and were asked to complete online surveys assessing (1) their typical alcohol use, (2) their alcohol use during spring break week, and (3) the activities they engaged in during spring break week. Students who vacationed with friends during spring break dramatically increased their alcohol use. In contrast, students who stayed home or vacationed with parents during spring break were at low risk for excessive alcohol use. Findings highlight the need for targeted drinking interventions geared specifically toward students taking trips with friends. Findings also highlight the need for further research into both person and environmental variables that predict increases in drinking during spring break.

Alcohol use, partner type, and risky sexual behavior among college students: Findings from an event-level study

Alcohol use is prevalent among college students and may contribute to elevated rates of sexual risk taking. Using event-level data, the hypothesis that partner type would moderate the effect of alcohol consumption on condom use was tested. Sexually active college students ( N = 330; 67% female) reported on characteristics of their most recent sexual encounter, including partner type, alcohol use, and condom use, along with measures of sex-related alcohol expectancies, sensation seeking, and typical alcohol use. Unprotected vaginal sex (UVS) was reported by 39% of the sample and 32% reported alcohol use prior to sex. For the complete sample, UVS was just as likely for non-drinking events as for events involving alcohol use. However, for sexual encounters involving a non-steady partner, alcohol consumption was associated with an increase in UVS, whereas rates of UVS did not vary by drinking status for encounters involving a steady partner. These effects remained in analyses that controlled for sex-related alcohol expectancies, sensation seeking, and typical alcohol use. Findings confirm that the effects of alcohol vary according to the context in which it is used.

Young-adult malt liquor drinkers: Prediction of alcohol problems and marijuana use.

Malt liquor (ML) is a cheap, high alcohol content beverage that is marketed to appeal to young adults. Findings from the few published studies of ML use suggest that it may be associated with excessive drinking, alcohol problems, and the use of illicit drugs. The authors conducted separate hierarchical multiple regressions to examine the role of ML use and psychosocial variables (e.g., personality, ML motives) in alcohol-related problems and marijuana use. Demographic characteristics served as controls. The sample consisted of 639 (456 men, 183 women) young adults (M = 22.9 years, SD = 4.2) who regularly (> or =40 oz/week) consumed ML. ML use significantly and positively predicted alcohol problems, ML-specific problems, and marijuana use, above and beyond their associations with typical alcohol use. Marijuana was the illicit drug of choice, and 46% reported concurrent use of marijuana and ML. Those who concurrently used ML and marijuana began drinking at a younger age and reported more substance use (particularly marijuana) and more alcohol-related problems than did non-concurrent users. These results suggest that ML use may represent a risk for alcohol problems and marijuana use.

College student drinking and meaning in the pursuit of life goals.

The current study was designed to examine the association between risky alcohol use and life goals among college students. Introductory psychology students completed a questionnaire that included measures of typical life goals and alcohol use behavior. Students listed their 5 most typical life goals and rated them each on a series of dimensions from which 2 factors were derived (i.e., Goal Meaning, Goal Efficacy). Hierarchical regression analyses showed that the lower levels of goal meaning were associated with more heavy episodic use of alcohol and alcohol-related negative consequences. Results are consistent with motivational models of drinking that depict alcohol use as a function of satisfaction from other life goals. Findings support the importance of understanding college student drinking within the broader context of life goal appraisal.

Alcohol Use and Risk Taking Among Regular Ecstasy Users

We examine alcohol use in conjunction with ecstasy use and risk-taking behaviors among regular ecstasy users in every capital city in Australia. Data on drug use and risks were collected in 2004 from a national sample of 852 regular ecstasy users (persons who had used ecstasy at least monthly in the preceding 6 months). Users were grouped according to their typical alcohol use when using ecstasy: no use, consumption of between one and five standard drinks, and consumption of more than five drinks (“binge” alcohol use). The sample was young, well educated, and mainly working or studying. Approximately two thirds (65%) of the regular ecstasy users reported drinking alcohol when taking ecstasy. Of these, 69% reported usually consuming more than five standard drinks. Those who did not drink alcohol were more disadvantaged, with greater levels of unemployment, less education, higher rates of drug user treatment, and prison history. They were also more likely than those who drank alcohol when using ecstasy to be drug injectors and to be hepatitis C positive. Excluding alcohol, drug use patterns were similar between groups, although the no alcohol group used cannabis and methamphetamine more frequently. Binge drinkers were more likely to report having had three or more sexual partners in the past 6 months and were less likely to report having safe sex with casual partners while under the influence of drugs. Despite some evidence that the no alcohol group were more entrenched drug users, those who typically drank alcohol when taking ecstasy were as likely to report risks and problems associated with their drug use. It appears that regular ecstasy users who binge drink are placing themselves at increased sexual risk when under the influence of drugs. Safe sex messages should address the sexual risk associated with substance use and should be tailored to reducing alcohol consumption, particularly targeting “heavy” alcohol users. The study's limitations are noted.

Experience with alcohol and ability to discriminate legal intoxication status: A field study

The research on blood alcohol level (BAL) discrimination training indicates that normal social drinkers can be taught to estimate successfully their level of intoxication. These studies show, however, that prior to training, skills for estimating intoxication are poor. The current study was undertaken to demonstrate that a sample of individuals in an actual drinking setting would have difficulty in estimating their blood alcohol level. It was expected that greater experience with alcohol would be associated with poorer abilities to discriminate legal intoxication. Subjects were 99 volunteers selected from the patrons of two bars. Participants completed a brief questionnaire assessing their typical alcohol use, the number of drinks consumed on this particular occasion, and whether they believed that they were currently over the legal limit for intoxication. A breathalyzer was used to determine actual level of intoxication. Results generally supported the hypotheses. Situational factors, including experimenter and drinking location, affected accuracy of estimations. Actual BAL also had a significant effect on accuracy. Errors in estimation were most often in the direction of overestimating intoxication. There was also a sex of subject effect, with males being heavier drinkers and estimating intoxication more poorly than females. Results are discussed in terms of situation and expectancy effects.