The impact of normative perceptions on alcohol consumption in military veterans

Peer- and web-based interventions for risky drinking among US National Guard members: Mission Strong randomized controlled trial

AIMS

To test separatel the efficacy of a web-based and a peer-based brief intervention (BI), compared with an expanded usual care control (EUC) group, among military reserve component members using alcohoI in a hazardous and harmful manner.

DESIGN

In the randomized controlled trial, participants were assigned to: [1] web-based BI with web-based boosters (BI + web), [2] web-based BI with peer-based boosters (BI + peer) or [3] enhanced usual care (EUC).

SETTING

Michigan, USA.

PARTICIPANTS

A total of 739 Michigan Army National Guard members who reported recent hazardous alcohol use; 84% were male, the mean age was 28 years.

INTERVENTION

The BI consisted of an interactive program guided by a personally selected avatar. Boosters were delivered either on the web or personally by a trained veteran peer. A pamphlet, given to all participants, included information on hazardous alcohol use and military-specific community resources and served as the EUC condition.

MEASUREMENTS

The primary outcome measure was binge drinking episodes in the past 30 days, measured at 12 months after the BI.

FINDINGS

All randomized participants were included in the outcome analyses. In adjusted analyses, BI + peer [beta = -0.43, 95% confidence interval (CI) = -0.56 to -0.31, P < 0.001] and BI + web (beta = -0.34, 95% CI = -0.46 to -0.23, P < 0.001) reduced binge drinking compared with EUC.

CONCLUSION

This satudy was a web-based brief intervention for hazardous alcohol use, with either web- or peer-based boosters, reduced binge alcohol use among Army National Guard members.

Perceptions About Local ART Adherence Norms and Personal Adherence Behavior Among Adults Living with HIV in Rural Uganda

Although misperceived norms often drive personal health behaviors, we do not know about this phenomenon in the context of antiretroviral therapy (ART) adherence. We conducted a cross-sectional study including all persons living with HIV (PLWH) on ART across eight villages in one parish in a rural region of southwestern Uganda. We used surveys to measure personal reports of ART adherence (not missing any doses of ART in the past 7 days was considered optimal adherence whereas missing doses was considered suboptimal adherence) and perceived norms about the local ART adherence norm (whether or not each individual thought 'most other PLWH on ART in this parish' missed any doses in the past 7 days). Multivariable Poisson regression models were used to estimate the association between perceived norms and personal adherence. Among 159 PLWH on ART (95% response rate), 142 (89%) reported no missed doses. However, 119 (75%) thought most individuals in this population of PLWH on ART were sub-optimally adherent. This misperception about the local ART adherence norm was prevalent in every subgroup of PLWH. Misperceiving the local ART adherence norm to be sub-optimal adherence was associated with a reduced likelihood of optimal adherence among married PLWH (adjusted relative risk [aRR] = 0.83; 95% confidence interval [CI] 0.71-0.97). The association was similar but imprecisely estimated for all PLWH (aRR = 0.91; 95% CI 0.82-1.01). Interventions to correct misperceived ART adherence norms as a stand-alone intervention or as a complement to other adherence promotion programs may influence ART adherence behavior and perhaps reduce HIV-related stigma.

Opportunities for reducing college drinking: The roles of drinking attitudes and blackout experience

BACKGROUND

As many as 35% of college students report having been drunk in the past month, and greater alcohol use and alcohol-related problems are associated with a positive attitude toward heavy drinking. One serious consequence of heavy drinking is alcohol-induced blackout. When they occur, alcohol-induced blackouts present a unique opportunity to increase motivation to change drinking. However, it is unclear under what conditions an alcohol-related heavy drinking attitude and experiencing a blackout represent an opportunity to change and how experiencing a blackout(s) influences an individual's motivation to reduce drinking and actual behavior.

METHODS

This study tested the interplay between one's positive attitude toward heavy drinking and experiencing a blackout in the past year in predicting motivation to reduce drinking (Study 1) and its impact on drinking over time (Study 2). Data were derived from complementary datasets collected at two universities (Study 1 n = 703, mean age = 20.63 years, 44% male, 52% White; Study 2 n = 568, mean age = 19.18 years, 72% male, 84% White). Drinking behavior was measured using a modified Daily Drinking Questionnaire, the Drinking Norms Rating Form, the Alcohol Use Disorders Identification Test (AUDIT), and estimated peak blood alcohol concentration (BAC). Regression analyses were conducted to determine whether a blackout would moderate the association between attitude and motivation to reduce drinking (Study 1) and drinking over time (Study 2).

RESULTS

Results revealed a significant interaction between attitude and blackout, such that individuals who experience a blackout (vs. those who do not) and positively evaluate heavy drinking evidenced lower motivation to reduce drinking (Study 1) and higher levels of estimated peak BAC (Study 2).

CONCLUSIONS

Drinkers with a negative attitude toward heavy drinking who have experienced a blackout have the strongest motivation to reduce drinking and the greatest reductions in peak drinking behavior over time. These effects are over and above that related to the level of alcohol consumed. For young adults who do not positively endorse heavy drinking, blackouts may present a "moment of opportunity" for intervention.

Drinking to Cope with Posttraumatic Stress: A Nationally Representative Study of Men with and without Military Combat Experience

Posttraumatic stress disorder (PTSD) and hazardous alcohol use are prevalent among trauma survivors. Despite higher rates of both PTSD and hazardous alcohol use among military combat veterans than civilians, scant research has examined whether military combat experience is associated with drinking alcohol to cope with PTSD symptoms. This study tested the hypothesis that compared to trauma-exposed men without combat experience, men with military combat experience would be more likely to endorse drinking alcohol to cope with their PTSD symptoms. Methods: Interview data from N = 11,474 men who reported at least one lifetime traumatic experience were drawn from the National Epidemiologic Survey on Alcohol and Related Conditions (NESARC), a face-to-face interview study that recruited a nationally representative sample of adults living in the United States between 2004 and 2005. Results: Among men endorsing lifetime trauma exposure, men with military combat experience (n = 1,386) were more likely than men without combat experience (n = 10,088) to report drinking alcohol to cope (7.22 vs. 2.61% in unweighted analyses, 6.46 vs. 2.37% in weighted analyses). Total number of lifetime trauma types, lifetime PTSD severity, and lifetime alcohol abuse/dependence were significantly associated with drinking to cope in bivariate and multivariate analyses. Military combat experience was significantly associated with drinking to cope in multivariate analyses adjusting for lifetime PTSD diagnosis. Military combat experience was not significantly associated with drinking to cope in multivariate analyses adjusting for lifetime PTSD symptom count. Conclusions: Although military combat experience was significantly associated with drinking to cope in bivariate analyses, multivariate analyses yielded mixed findings: combat experience was significantly associated with drinking to cope in models adjusting for PTSD diagnosis, but not in models adjusting for PTSD symptom count. Findings highlight the importance of assessing and targeting PTSD symptom-related alcohol use, even in the absence of alcohol abuse/dependence. Results from this preliminary study could inform future research on drinking to cope with PTSD symptoms among military combat veterans and other trauma survivors.

Mental Health, Sexual Orientation, and Perceived Social Network Support in Relation to Hazardous Alcohol Consumption Among Active Duty Military Men

Knowledge surrounding perceived network support and alcohol consumption among active duty U.S. military personnel is limited, particularly among sexual minorities.We sought to determine the correlates of hazardous alcohol consumption and whether perceived network support moderated the relationship between sexual orientation and Alcohol Use Identification Test (AUDIT-C) score.The sample comprised cisgender men currently serving in the U.S. military (N = 292). Participants were recruited through respondent-driven sampling and completed an online survey. Logistic regression analysis evaluated associations between positive AUDIT-C with sociodemographic characteristics (including sexual orientation), military service, mental health, and perceived social network support. Interaction analysis assessed the moderating effect of perceived network support on sexual orientation and AUDIT-C.Among study participants, 52.7% (154/292) had positive AUDIT-C, while 65.4% (191/292) self-identified as heterosexual/straight and 34.6% (101/292) identified as gay or bisexual. In adjusted analysis, positive AUDIT-C was associated with increased post-traumatic stress disorder symptomatology (adjusted odds ratio [adjOR] 1.03; 95% CI [1.00, 1.06]; p = .019) and high perceived network support (adjOR 1.85; 95% CI [1.04, 3.29]; p = .036), while mental health service utilization had reduced odds of positive AUDIT-C (adjOR 0.40; 95% CI [0.20, 0.78]; p = .007). In interaction analysis, high perceived network support was associated with increased odds of positive AUDIT-C among sexual minority men (adjOR 3.09; 95% CI [1.21, 7.93]; p = .019) but not heterosexual men (adjOR 1.38; 95% CI [0.68, 2.81]; p = .37).Hazardous alcohol use was prevalent among all men in our sample. Perceived social network support may influence hazardous alcohol consumption, particularly among sexual minority servicemen. These findings suggest the potential role of tailored social network-based interventions to decrease hazardous alcohol use among military personnel.

Adolescent Tobacco Use and Misperceptions of Social Norms Across Schools in the United States

OBJECTIVE

This study assesses tobacco use norm misperceptions by distinguishing between perceived and actual peer norms for both tobacco use attitudes and behavior, and examines the association between perceived norms and personal use among U.S. students in Grades 6-12.

METHOD

Anonymous self-report surveys were conducted with 28,070 students across 64 schools in 11 U.S. states between 1999 and 2017.

RESULTS

Although 77% of students said tobacco use is never good, 64% of students thought that most students in their grade believed that use is acceptable. Similarly, although 79% of students reported never using tobacco, 85% of students perceived that most students in their grade typically use tobacco, with 66% thinking that peers use monthly or more often. Substantial norm misperception existed regardless of student and school factors, increasing by grade. Perceiving that most peers thought tobacco use is acceptable was highly predictive of personal attitude, and perceiving tobacco use as the norm among same-grade peers strongly predicted personal tobacco use, even after we adjusted for actual peer use prevalence and other factors. Males' perception of the male peer norm was a stronger predictor of personal use than was their perception of the female peer norm. Females' perceptions of sex-specific norms were associated with personal use, each at about the same magnitude.

CONCLUSIONS

Norm misperceptions are pervasive across a diversity of students and schools, whereas perceptions of peer norms about tobacco use are highly associated with personal attitude and use. Results suggest that population-wide interventions correcting these misperceptions may help reduce tobacco use broadly among youth.

Cognitive factors and addiction

The present paper provides a brief review of cognitive factors related to addiction. Five representative cognitive constructs were selected from the current literature. These include the distinction between implicit and explicit cognitions; metacognitions; expectancies; motives; and social norms. For each of these a general overview is provided along with specific findings from selected recent studies. The intention is to provide the reader with a succinct but reasonable view of how each construct is currently studied in relation to the use of alcohol and other substances and to become aware of some of the strengths and limitations corresponding to the study of these constructs.

Self-Efficacy to Limit Drinking Mediates the Association between Attitudes and Alcohol-Related Outcomes

Personal attitudes toward alcohol consumption are reliable predictors of alcohol use and related problems, with emerging work suggesting that one's favorable attitude toward limited drinking (i.e., at levels below the threshold for heavy episodic drinking) is a buffer against alcohol use and binge drinking. However, little work has examined the specific mechanism(s) through which one's personal attitude toward limited drinking is associated with alcohol use and related problems. One such mechanism may be an individual's self-efficacy to limit their alcohol use. The current study aimed to evaluate whether self-efficacy to limit one's alcohol use mediates the association between one's personal attitude toward limited drinking and actual alcohol use and related problems over time. Participants were mandated students (n = 568; 28% female) who violated campus alcohol policy and received a brief motivational intervention. Mediation models were used to test (a) self-efficacy to limit one's alcohol use as a traditional mediator of the attitudes-drinking quantity association and (b) self-efficacy and drinking quantity as serial mediators of the attitudes-alcohol-problems link. Favorable attitudes toward limiting drinking at baseline were positively associated with self-efficacy to limit drinking at 1 month, which was associated with a reduction in drinking quantity at 3 months; this, in turn, was associated with a reduction in alcohol-related problems at 5 months. These findings provide a rationale for incorporating attitudes and self-efficacy in the development and refinement of intervention strategies.