Perceived Peer Drinking Research Articles

The socio-ecological context of U.S. college student drinking: A latent class analysis

BackgroundU.S. college student drinking typologies often consider quantity and frequency but not the socio-environmental contexts in which students obtain alcohol and drink. Understanding context could be important for preventive interventions. MethodsWe used latent class analysis (LCA), a person-centered approach to understanding behavior patterns, to identify drinking typologies among 1390 college student drinkers from a representative survey at two interconnected private colleges in the Northeast. Classes were derived from drinking frequency and quantity as well as how students obtain alcohol, where they drink, and their perceptions of peer drinking. Resulting classes were correlated with demographic and developmental characteristics, participation in campus activities and connectedness, and alcohol consequences and protective behaviors. ResultsFour distinct drinking profiles emerged. ‘Tasters’ (n = 290) included infrequent and low quantity drinkers who drank in dorms with alcohol provided by others. ‘Bargoers’ (n = 271) included low quantity and moderate frequency drinkers who purchased their own alcohol and drank at bars. ‘Partiers’ (n = 483) included moderate frequency and quantity drinkers who obtained alcohol from several sources and drank in many locations. ‘Bingers’ (n = 345) included high frequency and quantity drinkers and binge drinkers, who drank in many locations with alcohol obtained from multiple sources. Classes differed in demographics, age of first drink, campus activities and connectedness, alcohol protective behaviors, and alcohol problems. ConclusionHeterogeneous patterns of drinking based on quantity, frequency and social/environmental context emerged and suggested the need for different tailored interventions.

Development and Validation of the Dutch Social Attunement Questionnaire (SAQ).

The social plasticity hypothesis proposes that social attunement, i.e., the adaptation to and harmonization with one's environment, plays a crucial role in the risk for developing alcohol use disorders (AUDs) during adolescence, whereas in adulthood it paradoxically may make individuals more sensitive to the social pull to reduce drinking. This study aimed to develop a valid measure of social attunement: the social attunement questionnaire (SAQ). A total of 26-items were developed and the questionnaire was completed by 576 Dutch mid to late adolescents and adults over three rounds of online data collection. Using exploratory factor analysis in part of the sample (N = 373), the final questionnaire was reduced to two subscales with a total of 11 items. This structure was confirmed using confirmatory factor analysis in the second part of the sample (N = 203). Results showed that the SAQ has acceptable internal consistency, good measurement invariance to gender, and subscales assessing both cognitive as well as behavioural components of social attunement. In line with expectations on alcohol use settings, SAQ scores were not associated directly with alcohol use, but they were predictive of alcohol use when taking into account the interaction between perceived peer drinking and age. The SAQ appears suitable for the assessment of social attunement in (young) adult men and women, particularly assessing the role of social attunement in alcohol use settings. Further research is needed to confirm the utility of the SAQ in older adults and a broader variety of social settings.

Examining Emailed Feedback as Boosters After a College Drinking Intervention Among Fraternities and Sororities: Rationale and Protocol for a Remote Controlled Trial (Project Greek).

College students involved in Greek life (ie, members of fraternities and sororities) tend to engage in more high-risk alcohol use and experience more negative consequences than those not involved in Greek life. Web-based alcohol interventions, such as Alcohol eCHECKUP TO GO, have been successful in reducing alcohol use and consequences among the general college student population, but interventions targeting alcohol reduction among those involved in Greek life have had limited success. Booster emails including personalized feedback regarding descriptive norms and protective behavioral strategies have shown potential in increasing the effectiveness of web-based interventions among college drinkers. Studies are needed to determine the efficacy of these boosters among those involved in Greek life. The primary objective of this study is to assess the efficacy of booster emails sent to Greek life students who complete Alcohol eCHECKUP TO GO. Specifically, we expect that participants who receive the booster emails will reduce their alcohol consumption and related problems (primary aim 1), reduce perceived peer drinking, and increase the number of protective behavioral strategies they use over time (primary aim 2) relative to those who do not receive boosters. Contingent upon finding the emailed booster efficacious and sufficient enrollment of members from each organization, an exploratory aim is to examine social mechanisms of change (ie, through selection vs socialization). This study is a remote, controlled intervention trial following participants for up to 6 months. Participants must be aged at least 18 years, undergraduate students, and members of a participating fraternity or sorority. Eligible participants complete a web-based baseline survey to assess their alcohol consumption behaviors and beliefs, including norms and protective behavioral strategies, and information about their social networks. After completing the baseline survey, they participate in the web-based intervention. Follow-up surveys are sent 1, 3, and 6 months after the intervention. Those in the booster condition also receive emails containing personalized feedback at 2 weeks and 14 weeks after the intervention. Latent growth models and R-Simulation Investigation for Empirical Network Analysis will be used to analyze the data. As of September 2022, we have enrolled 18 participants from 2 fraternities and 2 sororities, and they have completed the baseline survey. Overall, 72% (13/18) of participants have completed the 1-month follow-up. Enrollment will continue through December 2022. This study aims to examine the effectiveness of personalized feedback booster emails sent after an alcohol intervention among members of college Greek life. A secondary, exploratory aim is to provide information about social mechanisms of change (if possible). The current methodology targets whole network recruitment, with chapter presidents serving as gatekeepers and facilitators. Unique challenges of recruiting whole networks and working with campus administrators are discussed. ClinicalTrials.gov NCT05107284; https://clinicaltrials.gov/ct2/show/NCT05107284. DERR1-10.2196/42535.

Mechanisms Underlying Associations between Media Alcohol Exposure, Parenting, and Early Adolescent Drinking: A Moderated Sequential Mediation Model.

Exposure to alcohol content in the media, especially in movies, is a demonstrated risk factor for adolescent alcohol use. This paper examines processes underlying this association and whether parenting mitigates such harms. A mediational model of parental restriction of mature media (W1), alcohol content exposure (W2), alcohol expectancies, peer norms (W3), and alcohol outcomes (W4) was tested using annual assessments from a study of adolescent drinking (N = 879; 52% female; 21% Non-White; 12% Hispanic). When restrictions are not in place, adolescents report greater exposure to alcohol content, leading to higher perceived peer drinking. Parental monitoring did not buffer the link between exposure and peer norms. Parental media restriction and perceptions about peers comprise mechanisms by which alcohol-saturated media influences youth drinking.

同伴饮酒规范知觉对饮酒相关问题的影响：饮酒危害认识与饮酒行为的链式中介作用

同伴饮酒规范知觉对饮酒相关问题的影响：饮酒危害认识与饮酒行为的链式中介作用

Genes, Roommates, and Residence Halls: A Multidimensional Study of the Role of Peer Drinking on College Students' Alcohol Use.

Peer drinking is one of the most robust predictors of college students' alcohol use and can moderate students' genetic risk for alcohol use. Peer effect research generally suffers from 2 problems: selection into peer groups and relying more on perceptions of peer alcohol use than peers' self-report. The goal of the present study was to overcome those limitations by capitalizing on a genetically informed sample of randomly assigned college roommates to examine multiple dimensions of peer influence and the interplay between peer effects and genetic predisposition on alcohol use, in the form of polygenic scores. We used a subsample (n=755) of participants from a university-wide, longitudinal study at a large, diverse, urban university. Participants reported their own alcohol use during fall and spring and their perceptions of college peers' alcohol use in spring. We matched individuals into their rooms and residence halls to create a composite score of peer-reported alcohol use for each of those levels. We examined multiple dimensions of peer influence and whether peer influence moderated genetic predisposition to predict college students' alcohol use using multilevel models to account for clustering at the room and residence hall level. We found that polygenic scores (β=0.12), perceptions of peer drinking (β=0.37), and roommates' self-reported drinking (β=0.10) predicted alcohol use (all ps<0.001), while average alcohol use across residence hall did not (β=-0.01, p=0.86). We found no evidence for interactions between peer influence and genome-wide polygenic scores for alcohol use. Our findings underscore the importance of genetic predisposition on individual alcohol use and support the potentially causal nature of the association between peer influence and alcohol use.

The interactive effects of perceived peer drinking and personality profiles on adolescent drinking: a prospective cohort study.

(1) To classify Australian adolescents according to their alcohol consumption trajectories; and (2) to assess the direct and interactive effects of perceived peer drinking (PPD) and personality on adolescent drinking. Prospective cohort study comprising secondary analysis of six waves of prospective data (collected between 2014 and 2016) from the control arm of the Climate Schools Combined Study. Nineteen schools across three Australian states. A total of 1492 socio-demographically diverse students (mean age at baseline: 13.47; 68% female; 82% born in Australia). Alcohol consumption trajectories were assessed using self-reported sipping of alcohol, full standard drink consumption, binge drinking and quantity and frequency of alcohol consumption. One item assessed PPD and personality was assessed using the Substance Use Risk Profile Scale. Eight hundred and sixty-four (58%) adolescents consumed alcohol across the study period. Four drinking trajectories were identified: abstaining (n=513; reference group); onset (n=361; initiated after baseline); persistent (n=531; initiated prior to baseline); and decreasing (n=50; consumed alcohol at baseline but ceased or decreased thereafter). A significant PPD×anxiety sensitivity (AS) interaction affected probability of belonging to the onset (P<0.001) and persistent (P=0.003) trajectories. The effect of PPD on probability of belonging to the onset trajectory was only significant when adolescents reported low [95% confidence interval (CI)=1.464-2.646, P<0.001], but not high AS. The effect of PPD on probability of belonging to the persistent drinking trajectory was stronger at low (95% CI=2.144-3.283, P<0.001), compared with high (95% CI=1.440-2.308, P<0.001) AS. In Australian adolescents, self-reported drinking onset and persistent drinking appear to be more strongly associated with perceived peer drinking in those with low anxiety sensitivity than those with high anxiety sensitivity.

Adolescent recanting of alcohol use: A longitudinal investigation of time-varying intra-individual predictors

BackgroundRecanting – denying previous reports of lifetime substance use – occurs frequently in longitudinal investigations of adolescent substance use. While research has focused on how individual differences contribute to recanting, intra-individual factors associated with recanting over time remain understudied. MethodsAdolescents (n = 1023) were assessed six times between 2009 – 2015. The sample included participants who reported ever-sipping alcohol in at least one assessment who maintained or recanted ever-sipping at the subsequent assessment (n = 543, 53.1% of full sample; 54.5% female; 84.9% white; 89.5% non-Hispanic). The majority (58.6%) of the sample recanted ever-sipping. We fit linear mixed models to investigate whether prospective changes in perceived peer drinking, peer approval, alcohol expectancies, and fear of reprisal predicted recanting. To explore whether mechanisms of recanting differed for delayed (i.e., two assessments or later) recanting, we refit the models in a subset of data excluding immediate (i.e., subsequent assessment) recanters. ResultsProspective increases in perceived peer drinking (OR = 0.65), peer approval of drinking (OR = 0.82), and positive and negative alcohol expectancies (OR = 0.96; 0.98, respectively) predicted lower odds of recanting. Similar effects were observed among only delayed recanters. ConclusionTime-varying, intra-individual factors uniquely predicted recanting over time. Although most recanting occurs immediately following the initial report of ever-sipping, the observed effects were consistent between delayed recanters and the sample as a whole. Considering the systematic patterns evident in recanting, researchers should consider using computer-assisted or other research methods that minimize or verify recanting when it occurs while also informing missing data models.

The interactive effects of personality profiles and perceived peer drinking on early adolescent drinking.

Early adolescent drinking has been identified as an important risk factor for the development of alcohol dependence. Both perceived peer drinking and personality profiles have been implicated as risk factors for early adolescent drinking. However, research is yet to determine how these 2 factors may interact to increase such risk. This study aimed to determine whether personality profiles moderated the relationship between perceived peer drinking and early adolescent drinking. Baseline data were utilized in the analyses, from 3,287 adolescents (Mage = 13.51 years, SD = .58; 54% female; 78% born in Australia) participating in the Climate Schools Combined Study (a cluster randomized controlled trial with 75 schools located across Queensland, New South Wales, and Western Australia, Australia). Lifetime consumption of alcohol, perceived peer drinking, and personality profiles (Substance Use Risk Profile Scale) were measured. A moderated binary logistic regression found the personality profiles of impulsivity, sensation seeking, and hopelessness were positively related to early adolescent drinking, whereas anxiety sensitivity had a negative association. A significant interaction revealed that adolescents with higher levels of sensation seeking and who perceived their peers to be drinking were significantly more likely to report early adolescent drinking (consumption of a full standard drink; OR = 1.043; 95% CI [1.018-1.069]). These results indicate that perception of peer drinking is more strongly associated with early adolescent drinking, when adolescents are also high on sensation seeking. Prevention and intervention programs could consider targeting both sensation seeking and perceived peer drinking in adolescents. (PsycINFO Database Record

Mediation of effects of the level of response to alcohol and impulsivity 15 years later in 36-year-old men: Implications for prevention efforts

BackgroundAlthough the prevalence of alcohol use disorders (AUDs) has increased in older individuals in the recent decade, there are few programs to mitigate that increase. The current analyses evaluate the feasibility of applying to older drinkers elements of an approach to prevent heavier drinking in young adults by focusing on mediators of effects of two risk factors for alcohol problems, low levels of response to alcohol (low LRs) and higher impulsivity. MethodsData were extracted from the San Diego Prospective Study (SDPS). Structural Equation Models evaluated relationships among age 36 low LRs and higher impulsivity; age 46 perceived peer drinking, alcohol expectancies, and drinking to cope; and age 51 alcohol problems, even after controlling for age 36 alcohol problems. ResultsRelationships of age 36 low LRs to later alcohol problems was both direct and linked to age 46 heavy drinking peers. LR also operated indirectly through peer drinking to alcohol expectancies and drinking to cope. Age 36 impulsivity had no direct path to later alcohol problems and operated primarily through mediation by alcohol expectancies and via expectancies to drinking to cope. After controlling for age 36 alcohol problems, the low LR and impulsivity results remained robust. ConclusionsPrograms for mitigating increases in alcohol problems in middle-age drinkers should consider identifying individuals with low LRs and/or higher impulsivity and implementing prevention approaches similar to a program used in young adults. The approach should emphasize some different mediators for older drinkers with low LRs and those with higher impulsivity.

The Role of Alcohol Expectancies in the Associations Between Close Friend, Typical College Student, and Personal Alcohol Use

ABSTRACTBackground Perceptions of peer drinking and alcohol expectancies have been consistently associated with alcohol use among college students. There is evidence that perceived peer drinking also shapes alcohol expectancies. Research has yet to address the potential differential impact of perceived drinking by close friends versus by typical college students on alcohol use among first-semester college students. Relatedly, mediation of these associations by specific domains of alcohol expectancies has yet to be examined. Objectives: The first aim of the present study was to investigate whether perceptions of close friend drinking were more strongly associated with alcohol expectancies, alcohol use, and consequences of alcohol use than perceptions of typical college student drinking. The second aim focused on which alcohol expectancy domains partially accounted for the association between close friend drinking, typical college student drinking, and alcohol use and consequences. Method: Participants (n = 400 first-semester college students) completed survey questionnaires, which included measures of perceived close friend/typical student alcohol use, alcohol expectancies, and drinking behaviors. Results: Results showed that close friend alcohol use was more strongly associated with alcohol use and consequences compared to typical college student use both directly and indirectly through expectancies about alcohol enhancing social behaviors. Conclusions/Importance: These findings suggest that first-semester college student drinking is more influenced by perceived alcohol use among close friends than typical college students. Future intervention efforts for alcohol use on college campuses may benefit from including close friend network components along with targeting alcohol expectancies regarding social behaviors.

Interaction between ADH1B*3 and alcohol‐facilitating social environments in alcohol behaviors among college students of african descent

Although alcohol-facilitating social environmental factors, such as alcohol offers and high perceived peer drinking norms, have been extensively studied as determinants of college drinking, their role among college students of African descent remains understudied. Furthermore, gene-environment interaction research suggests that the effects of alcohol-facilitating environments may differ as a function of genetic factors. Specifically, the alcohol dehydrogenase gene's ADH1B*3 allele, found almost exclusively in persons of African descent, may modulate the association of risky social environments with alcohol behaviors. The current study examined whether the ADH1B*3 allele attenuated the relationship between alcohol-facilitating environments (ie, alcohol offers and perceived peer drinking norms) and alcohol behaviors. Participants were 241 undergraduate students who self-identified as being of African descent (mean age = 20 years [SD = 4.11]; 66% female). Significant interaction effects of ADH1B*3 with alcohol offers were found on alcohol use frequency (incidence rate ratio [IRR] = 1.14) and on drinking consequences (IRR = 1.21). ADH1B*3 also interacted with perceived peer norms on drinking consequences (IRR = 1.41). Carriers of the ADH1B*3 allele drank less frequently and experienced fewer negative consequences than non-carriers when exposed to lower levels of alcohol offers and perceived peer drinking. In contrast, in high alcohol-facilitating environments, no protective genetic effect was observed. This study demonstrates that ADH1B*3 may protect college students of African descent against alcohol outcomes, although only in low alcohol-facilitating environments. Findings add to the growing body of knowledge regarding genetic and social determinants of alcohol behaviors among college students of African descent. (Am J Addict 2017;26:349-356).

A randomized controlled trial of a web-based, personalized normative feedback alcohol intervention for young-adult veterans.

Young-adult American veterans are at risk for problematic alcohol use. However, they are unlikely to seek care and may drop out from lengthy, multicomponent treatments when they do get care. This randomized controlled trial tested a very brief alcohol intervention delivered over the Internet to reach the population of young-adult veterans to help reduce their drinking. Veterans (N = 784) were recruited from Facebook and randomized to either a control condition or a personalized normative feedback (PNF) intervention seeking to correct drinking perceptions of gender-specific veteran peers. At immediate postintervention, PNF participants reported greater reductions in their perceptions of peer drinking and intentions to drink over the next month, compared with control participants. At 1-month follow-up, PNF participants reduced their drinking behavior and related consequences to a significantly greater extent than controls. Specifically, PNF participants drank 3.4 fewer drinks per week, consumed 0.4 fewer drinks per occasion, binge drank on 1.0 fewer days, and experienced about 1.0 fewer consequences than control participants in the month after the intervention. Intervention effects for drinks per occasion were most pronounced among more problematic drinkers. Changes in perceived norms from baseline to 1-month follow-up mediated intervention efficacy. Though effects were assessed after only 1 month, findings have potential to inform broader, population-level programs designed for young veterans to prevent escalation of drinking and development of long-term alcohol problems. Given the simplicity of the PNF approach and ease of administration, this intervention has the potential for a substantial impact on public health. (PsycINFO Database Record

Latent growth classes of alcohol-related blackouts over the first 2 years of college.

Alcohol-related blackouts are common among college student drinkers. The present study extends prior work by examining latent growth classes of blackouts and several predictors of class membership. Participants (N = 709 college drinkers) completed a baseline survey at college entry and biweekly online assessments throughout freshman and sophomore years. Results revealed 5 latent growth class trajectories, reflecting varying experiences of blackouts at the beginning of college and differential change in blackouts over time. The largest class represented a relatively low-risk group (low decrease; 47.3%) characterized by endorsement of no or very low likelihood of blackouts, and decreasing likelihood of blackouts over time. Another decreasing risk group (high decrease; 11.1%) initially reported a high proportion of blackouts and had the steepest decrease in blackout risk over time. A small percentage showed consistently high likelihood of blackouts over time (high stable; 4.1%). The remaining 2 groups were distinguished by relatively moderate (moderate stable; 14.9%) and lower (low stable; 22.6%) likelihood of blackouts, which remained stable over time. Comparisons between classes revealed that students with greater perceived peer drinking, perceived peer approval of drinking, and enhancement motives upon entry to college tended to be in higher risk groups with consistent experiences of blackouts over time, whereas blackout likelihood decreased over time for students with greater conformity motives. Findings suggest that precollege preventive interventions may be strengthened by considering not only factors related to current risk for blackouts and other alcohol-related consequences, but also those factors related to persistence of these behaviors over time. (PsycINFO Database Record

The eCHECKUP TO GO for High School: Impact on risk factors and protective behavioral strategies for alcohol use

The eCHECKUP TO GO is identified as a highly effective, low-cost individually-focused alcohol intervention by the NIAAA CollegeAIM guide. The research on the eCHECKUP TO GO for High School is less consistent, suggesting that the program content, originally designed for college students, may need modification for this age group. This randomized controlled study examined the effectiveness of the eCHECKUP TO GO for High School on shifting risk and protective factors for alcohol use targeted by the program at a 4–6week follow-up. Female high school students in the intervention group reported a reduction in perceptions of peer drinking, beliefs about alcohol, and positive alcohol expectancies, compared to students in the control group. There were no group differences in risk factors for males or in protective behavioral strategies for either males or females. Results indicate the eCHECKUP TO GO for High School may be more effective for females and that program content targeting protective behavioral strategies may need modification for this age group.

Drinking Like Everyone Else: Trait Self-Control Moderates the Association Between Peer and Personal Heavy Episodic Drinking

Background: Alcohol consumption often appears to be under social influence. However, we know relatively little about whether some people are particularly likely to exhibit similar drinking patterns to their peers. Objectives: Here we tested the extent to which trait social approval concerns and trait self-control are associated with the likelihood that individuals display similar heavy episodic drinking patterns to their peers. Method: One thousand and fifty-six young adults participated in an online study. We measured trait social approval concerns (the Need to Belong scale) and trait self-control (the Self-Control scale) alongside personal heavy episodic drinking and perceptions of peer heavy episodic drinking. Results: Beliefs that one's peers (other students) drank heavily were associated with heavier personal episodic drinking. This relationship was moderated by trait self-control: The correlation between personal heavy episodic drinking and perceived peer drinking was much stronger in those with low self-control compared with those with high self-control. Contrary to hypotheses, trait social approval concerns did not moderate the relationship between perceived peer drinking and personal heavy episodic drinking. Conclusions: Social norms about drinking could act as a form of informational cue for one's own alcohol consumption, but the extent to which individuals follow or override this cue may depend on individual differences in self-control.

Perceived Peer Drinking Norms and Responsible Drinking in UK University Settings

Background: Heavy drinking is common among students at UK universities. US students overestimate how much their peers drink and correcting this through the use of social norm messages may promote responsible drinking. Objectives: We tested whether there is an association between perceived campus drinking norms and usual drinking behavior in UK university students and whether norm messages about responsible drinking correct normative misperceptions and increase students’ intentions to drink responsibly. Method: 1,020 UK university students took part in an online study. Participants were exposed to one of five message types: a descriptive norm, an injunctive norm, a descriptive and injunctive norm, or one of two control messages. Message credibility was assessed. Afterwards participants completed measures of intentions to drink responsibly and we measured usual drinking habits and perceptions of peer drinking. Results: Perceptions of peer drinking were associated modestly with usual drinking behavior, whereby participants who believed other students drank responsibly also drank responsibly. Norm messages changed normative perceptions, but not in the target population of participants who underestimated responsible drinking in their peers at baseline. Norm messages did not increase intentions to drink responsibly and although based on accurate data, norm messages were not seen as credible. Conclusions: In this UK based study, although perceived social norms about peer drinking were associated with individual differences in drinking habits, campus wide norm messages about responsible drinking did not affect students’ intentions to drink more responsibly. More research is required to determine if this approach can be applied to UK settings.

The indirect effect of disinhibition on drinking; interrelations among disinhibition, perceived peer drinking, and delay of gratification

Disinhibition, perceived peer drinking, and delay of gratification are considered significant predictors of drinking in young adults. This study examined whether perceived peer drinking and delay of gratification mediated the association between disinhibition and drinking among young adults. In this study, 258 Japanese college students (109 men and 149 women, mean age 19.17 (SD = 1.20) years old) completed a self-administered questionnaire. As predicted, the results of mediation analysis controlled for sex using structural equation modeling indicated that disinhibition indirectly influenced drinking through perceived peer drinking and delay of gratification. In the multiple mediator model, perceived peer drinking had the largest direct effect on participants’ drinking, followed by disinhibition and delay discounting. The results of this study imply that it is important to understand the association between personality traits and peer influences to develop programs to reduce drinking among young adults in Japan.

Depressive symptomology and alcohol use among college students: the role of perceived drinking norms

This study examined the role of normative perceptions of peer drinking in the relationship between depressive symptoms and alcohol use among college students. Participants (n = 225, 73.3% female) completed measures of depressive symptoms, alcohol use, descriptive alcohol norms, and injunctive norms. Results revealed a positive relationship between depressive symptoms and alcohol consumption, as well as between depressive symptoms and normative perceptions. Perceived norms either completely or partially mediated the relationship between depressive symptoms and alcohol outcomes. These findings suggest that individuals who experience more depressive symptoms may be more susceptible to peer influences related to drinking. In particular, they may perceive their close friends to drink more and to approve of excessive drinking, which in turn predict their own drinking behavior. To minimize alcohol-related harms among college student drinkers experiencing depressive symptoms, secondary prevention programs that ai...

Sex differences in the effects of disinhibition, perceived peer drinking, and delay discounting on drinking among Japanese college students

Disinhibition, perceived peer drinking, and delay discounting are considered significant predictors of drinking in young adults. This study examined whether perceived peer drinking and delay discounting mediate the association between disinhibition and drinking for young men and women. In this study, 258 Japanese college students (109 men and 149 women, mean age 19.17 (SD=1.20) years old) completed a self-administered questionnaire that included four measures—the disinhibition subscale of the Sensation Seeking Scale for Japanese Adolescents, the proportion of friends who drink as an index of perceived peer drinking behaviors, the Monetary Choice Questionnaire, and participants’ own drinking behavior. In the multiple mediator models analyzed using structural equation modeling, for both sexes, perceived peer drinking had the largest direct effect on participants’ drinking, followed by disinhibition and delay discounting. However, the results of mediation analyses indicated that perceived peer drinking mediated the association between disinhibition and drinking for only women. The results of this study imply that it is important to consider sex differences in the association between personality traits and peer influence to develop programs aiming to reduce drinking among young adults in Japan.