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Background. Although the South African (SA) government has implemented alcohol control measures, alcohol consumption remains high. Objectives. To quantify the prevalence of self-reported current drinking and binge drinking in SA, and to determine important covariates. Methods. We used the 2014 - 2015 National Income Dynamics Study, a nationally representative dataset of just over 20 000 individuals aged ≥15 years. Multiple regression logit analyses were performed separately by gender for self-reported current drinkers (any amount), self-reported bingers as a proportion of drinkers, and self-reported bingers as a proportion of the total population. An individual was defined as a binge drinker if he/she reported consumption of ≥5 standard drinks on an average drinking day. Results. Current alcohol use (any amount) in 2014 - 2015 was reported by 33.1% of the population (47.7% males, 20.2% females). Of drinkers, 43.0% reported binge drinking (48.2% males, 32.4% females). The prevalence of self-reported binge drinking as a percentage of the total population was 14.1% (22.8% males, 6.4% females). Although black African males and females were less likely than white males and females to report drinking any amount, they were more likely to report binge drinking. Coloured (mixed race) females were more likely than black African females to report drinking any amount. Males and females who professed a religious affiliation were less likely than those who did not to report drinking any alcohol. The prevalence of self-reported binge drinking was highest among males and females aged 25 - 34 years. Smoking cigarettes substantially increased the likelihood of drinking any amount and of binge drinking for both genders. Conclusion. In SA, one in three individuals reported drinking alcohol, while one in seven reported binge drinking on an average day on which alcohol was consumed. Strong, evidence-based policies are needed to reduce the detrimental effects of alcohol use.

Introduction Binge drinking (four or more drinks for women, five or more drinks for men on an occasion) accounts for more than half of the 88,000 U.S. deaths resulting from excessive drinking annually. Adult binge drinkers do so frequently and at high intensity; however, there are known disparities in binge drinking that are not well characterized by any single binge-drinking measure. A new measure of total annual binge drinks was used to assess these disparities at the state and national levels. Methods Behavioral Risk Factor Surveillance System 2015 data (analyzed in 2016) were used to estimate the prevalence, frequency, intensity, and total binge drinks among U.S. adults. Total annual binge drinks was calculated by multiplying annual binge-drinking episodes by binge-drinking intensity. Results In 2015, a total of 17.1% of U.S. adults (37.4 million) reported an annual average of 53.1 binge-drinking episodes per binge drinker, at an average intensity of 7.0 drinks per binge episode, resulting in 17.5 billion total binge drinks, or 467.0 binge drinks per binge drinker. Although binge drinking was more common among young adults (aged 18-34 years), half of the total binge drinks were consumed by adults aged ≥35 years. Total binge drinks per binge drinker were substantially higher among those with lower educational levels and household incomes than among those with higher educational levels and household incomes. Conclusions U.S. adult binge drinkers consume about 17.5 billion total binge drinks annually, or about 470 binge drinks/binge drinker. Monitoring total binge drinks can help characterize disparities in binge drinking and help plan and evaluate effective prevention strategies.

Previous research suggests that binge drinking among young men serves as a “costly signal” to potential mates, such that the binge drinker is capable of bearing the harmful consequences of alcohol consumption. Here, we propose that binge drinking among young adults is conditionally dependent upon the signaler’s willingness to take risks, which is influenced by the local operational sex ratio (OSR). Using archived binge drinking estimates from 2009 to 2012 and Census Bureau records of OSRs, we tested the relationship between OSR and binge drinking rates at the county level across 3,143 U.S. counties against hypotheses drawn from evolutionary theory. Results from our mixed-effects models revealed that a higher overall OSR (i.e., more eligible men compared to women) was associated with higher male binge drinking rates but lower female binge drinking rates. A higher OSR particularly in the 20–29 and 50+ age groups predicted higher male binge drinking rates but lower female binge drinking rates. Our findings generally support predictions derived from evolutionary theory and suggest that binge drinking may function as a costly sexual signal, conditionally regulated by age and the local sex ratio.

We estimate the effect of binge drinking on road accidents, accident and emergency (A&E) attendances and arrests using a variety of unique English data and a two-sample instrumental variables estimation procedure. Drinking $10+$ units of alcohol in a single session increases road accidents by 18.6%, injury-related A&E attendances by 6.6% and arrests by 71%. The marginal increase from eight to $10+$ alcoholic units implies nearly 6,100 extra road accidents every year, 63,000 additional A&E attendances and 100,000 additional arrests. The externality per mile driven by a binge drinker is about five pence and the punishment that internalises this externality is equivalent to a fine of £22,800 per drunk driving arrest.

The objective for this study was to combine drinking characteristics and two subjective measures, drinker identity and alcohol-related quality of life, i.e., negative impact of alcohol on quality of life, to determine relevant profiles for indicated prevention programs. In particular, we hypothesized that different profiles of students with high level of alcohol consumption exist when exploring subjectivity. We performed an online survey among 16,930 students. We collected sociodemographics and environmental data, including alcohol-related quality of life, drinker identity, and drinking characteristics. We performed a hierarchical clustering on principal components. We described all variables in each cluster and explored between clusters differences by Kruskal–Wallis tests. We identified five clusters as regarding drinker identity, drinking characteristics, and alcohol-related quality of life. Among these five clusters, three clusters presented high drinking characteristics. A very vulnerable cluster showed high level of alcohol consumption, impact on quality of life and on academic results, and strong drinker identity. An egodystonic cluster showed high level of consumption, mild impact on quality of life and on academic results, but low drinker identity. A cluster seemed short-term super-adapted in heavy drinking environment, showing high level of alcohol consumption and drinker identity, but low impact on quality of life and on academic results (all between clusters p values

It is a well-established that immigrants upon their arrival in the United States are in better health condition with respect to their American counterpart and that such advantage erodes over time. In this paper we study the heterogeneity of such assimilation across different arrival cohorts and unhealthy behaviors. To do so we focus on the assimilation of: cigarette and alcohol consumption. Our theoretical predictions show that assimilation depends on social exposure and taste for consumption. Empirical results show that for binge drinking more recent immigrant cohorts arrive in the US with a higher probability of being binge drinker and experience a faster assimilation as time passes. On the contrary for smoking habits both earlier and later arrival cohorts report lower smoking rates, although such health advantage decreases with time spent in the US. These results show that there is indeed heterogeneity in the assimilation of unhealthy behaviors for American immigrants. Drinking habits assimilation start in the country of origin and continues as immigrants interacts with natives' habits; while for smoking healthier country of origin healthier habits are preserved in time, but immigrants struggle to maintain their health advantage as they interacts with natives.

Two studies investigated undergraduates' knowledge of the UK government recommendations about binge drinking and sensible drinking, and also examined how labelling oneself as a binge drinker is associated with binge drinking perceptions. In Study 1, 325 undergraduates reported how many units constitute binge drinking, and labelled themselves as a 'binge drinker' or 'non-binge drinker'. Participants overestimated how many units constitute binge drinking relative to the UK government recommendations. Also, 59 labelled themselves as 'non-binge drinkers' and gave significantly higher estimates compared with 'binge drinkers'. In Study 2, 386 undergraduates defined binge drinking and reported how many units constitute sensible drinking. Only 13 of undergraduates defined binge drinking in terms of units of alcohol, and undergraduates overestimated how many units constitute sensible drinking. This research found wide variation in personal understanding of the term binge drinking and suggests a review of how to communicate recommendations about alcohol consumption to young people is needed.

In 1997, the Harvard School of Public Health College Alcohol Study resurveyed colleges that participated in a 1993 study. The findings revealed little change in binge drinking: a slight decrease in percentage of binge drinkers and slight increases in percentages of abstainers and frequent binge drinkers. Two of 5 students were binge drinkers (42.7%); 1 in 5 (19.0%) was an abstainer, and 1 in 5 was a frequent binge drinker (20.7%). As was true in 1993, 4 of 5 residents of fraternities or sororities were binge drinkers (81.1%). Asian students showed a greater increase and White students a greater decrease in binge drinking from 1993 to 1997, compared with all other students. Among students who drank alcohol, increases in frequency of drinking; drunkenness; drinking to get drunk; and alcohol-related problems, including drinking and driving, were reported. Binge drinkers in both 1993 and 1997 were at increased risk of alcohol-related problems, and nonbingers at colleges with high binge drinking rates had increased risks of encountering secondhand effects of binge drinking.