Trend in alcohol use in Australia over 13 years: has there been a trend reversal?

Who buys non-alcoholic beer in Finland? Sociodemographic characteristics and associations with regular beer purchases

BACKGROUND

The consumption of non-alcoholic beer and other non-alcoholic and low-alcohol beverages has grown significantly in recent years. Due to a lack of suitable datasets, there have been few studies conducted on the forerunners of the non-alcoholic beer consumption trend. This study examined the associations of sociodemographic characteristics with non-alcoholic beer purchase, and of non-alcoholic beer purchases with regular beer purchases.

METHODS

The data consisted of longitudinal individual purchases of non-alcoholic and regular beer from grocery stores in 2017 and 2018. The study participants were loyalty cardholders from the largest food retailer in Finland (n = 47,066). The level of education, household income and occupational status were analyzed as determinants of non-alcoholic beer purchase using logistic regression models. The changes in the regular and non-alcoholic beer purchases from 2017 to 2018 and the distributions of non-alcoholic beer purchase by regular beer purchase, by gender and by age were described.

RESULTS

Between 2017 and 2018, the total volume of non-alcoholic beer purchases increased from 2.3% to 3.7% of the total volume of all beer purchases. Men and older people purchased non-alcoholic beer more often than women and younger people did. Non-alcoholic beer purchases were most common among the highly educated and high-income consumers. Non-alcoholic beer purchases were most prevalent in the groups with the highest volumes of regular beer purchase.

CONCLUSIONS

Educated and affluent consumers have been the forerunners of non-alcoholic beer consumption in Finland. In order to promote the substitution of regular beer with non-alcoholic beer the shift towards lower-strength beverages should be facilitated across social strata.

Examining Potential Mechanisms of an Online Universal Prevention for Adolescent Alcohol Use: a Causal Mediation Analysis

Several universal school-based prevention programs, notably the Australian Climate Schools program, have proven efficacious at reducing and maintaining a lower level of harmful alcohol consumption relative to a control condition. Yet, there are limited studies investigating the potential mechanisms that account for the reduction in harmful alcohol consumption. The current study utilised modern causal mediation analysis to investigate whether several harm minimisation and social influence mediators could jointly account for the intervention effect observed in a large school-based sample. Four mediators representing knowledge, attitudes, normative perceptions, and self-efficacy to resist peer pressure were entered into a multiple casual mediation model using the potential outcomes framework. The results did not provide evidence for a joint multiple mediation model consisting of the hypothesised harm minimisation and social influence mediators. Additional research is required to further investigate the potential mechanisms underlying universal school-based prevention programs including social connectedness and cultural/environmental factors.

Development of an individualized procedure to induce reward-related impulsivity and evaluating its impact on drinking control

High impulsivity predisposes young adults to engage in hazardous alcohol use. Experimental research has shown that reward-related impulsivity is causally-related to heavier drinking. Correlational studies suggest that positive alcohol outcome expectancies mediate this effect, but causation has yet to be established. This study sought to clarify this relationship by: 1) developing a new, individualized procedure for inducing reward-related impulsivity with high generalizability; 2) experimentally manipulating positive alcohol expectancies to determine its mechanistic role in reward-related impulsivity risk for drinking. Eighty-seven young adults (67% female; M_age = 19.19, SD = 2.01) received either a covert manipulation to reduce positive alcohol expectancies (n = 43) or control (n = 44) after being administered the Individualized Reward-Seeking Induction Schedule (IRIS). The primary outcome was self-reported confidence in the ability to refuse alcohol in cued situations (drinking refusal self-efficacy). Results showed that IRIS increased reward-related impulsivity (p < .001, d_rm = 0.48) and reduced drinking refusal self-efficacy (p = .029, η²_P = .055, ω_p² = .043). Experimentally diminishing positive alcohol expectancies had a marginal effect on the reward-seeking induction when controlling for covariates (p = .057, η²_P = .044). Findings provide preliminary validation of IRIS as a new methodology for investigating the causal role of reward-related impulsivity in alcohol-related cognition and youth drinking.

Mapping Problematic Drinking Trends over Time in Urban, Semi-Urban, and Rural Populations

Current alcohol public health policy in Australia is not uniform but is generally focused on restricting access and early prevention of problematic alcohol use. Semi-urban and rural populations are at greater risk of disease and other poor health outcomes due to a variety of factors. Little is known about problematic drinking patterns over time in semi-urban and rural populations. This study aims to assess patterns of problematic drinking defined as both long-term risky and heavy episodic drinking over time by age, sex, and mental health status among urban, semi-urban and rural populations). Four waves (2004 to 2016) of the Australian NDSHS (National Drug Strategy Household Survey) were analyzed to assess problematic drinking of participants over 18 years of age. We used regression models and predictive margins to identify trends in problematic drinking over time based on age, sex, and mental health status. Our results show young adults across all regions, males, and mentally well individuals in urban areas have reductions in the risk of problematic drinking over time. Middle-aged adults across all regions, females, and those with varying mental health presentations in rural areas have some increases in risk of problematic drinking over time. The general conclusion is that targeted alcohol-related public health policy may need to change and focus on females, middle-aged individuals, and those living in rural areas. Programs to support problematic drinking in people with mental health disorders may also need to be a priority.

Non-Drinkers' Experiences of Drinking Occasions: A Population-Based Study of Social Consequences of Abstaining from Alcohol

BACKGROUND

People should be able to quit or moderate their drinking without negative social consequences, but studies have shown how nondrinkers often face pressure and negative reactions. As previous research has mostly focused on youth, we conducted a population-level study of the ways adult nondrinkers encounter their drinking companions on drinking occasions and what kinds of reactions they perceive from their social environments.

METHOD

The data were based on the Finnish Drinking Habits Survey (FDHS), a general population survey of Finns aged 15-79 collected in 2016 (N = 2,285; 330 nondrinkers; response rate 60%). Characteristics of drinking occasions where nondrinkers participate ("non-drinking occasions") were measured through self-reports of frequency, time, purpose, and social companion on those occasions. Nondrinkers' experiences of non-drinking occasions and reactions from the social environment were measured by question batteries on social consequences.

RESULTS

Compared with drinking occasions, non-drinking occasions occurred more often at family events at home than on late-night drinking occasions. Accordingly, nondrinkers reported relatively low levels of negative consequences, and the reported consequences were least frequent in the oldest age group. Nondrinkers reported mostly positive feedback from people around them, more often from family members than from peers. However, negative consequences were reported in all studied groups, most commonly among youth and former drinkers.

CONCLUSIONS

The study indicates that nondrinkers' social environments may be more supportive than what has been suggested previously, yet coping mechanisms are required especially from youth and former drinkers. The positive social experiences of being a nondrinker should guide the promotion of moderate and non-drinking.

The long-term effectiveness of universal, selective and combined prevention for alcohol use during adolescence: 36-month outcomes from a cluster randomized controlled trial

AIM

To compare the long-term universal outcomes of the Climate Schools programme, the selective preventure programme and their combined implementation to standard substance use education in reducing the uptake of alcohol use, engagement in binge drinking and alcohol-related harms over a 3-year period.

DESIGN

A cluster-randomized controlled trial.

SETTING AND PARTICIPANTS

Substance use prevention programmes delivered in Australian secondary schools. Students from 26 Australian secondary schools (n = 2190), mean age at baseline 13.3 years (standard deviation = 0.48), 57.4% male. Schools were recruited between September 2011 and February 2012.

INTERVENTIONS

Schools were block-randomized to one of four groups: universal prevention (climate; 12 × 40-minute lessons); selective prevention (preventure; 2 × 90-minute sessions); combined prevention (climate and preventure; CAP); or health education as usual (control). The climate intervention delivered 12 × 40-minute lessons aimed at reducing alcohol and cannabis use and related harms. The preventure intervention delivered 2 × 90-minute group sessions to high-risk students. The CAP group implemented the climate programme to the entire year group and the preventure programme to the high-risk students.

MEASUREMENTS

Participants were all consenting 8th grade students (in 2012) assessed at baseline, post-intervention (6-9 months post-baseline) and at 12, 24 and 36 months post-baseline on measures of alcohol use, knowledge and related harms. Primary outcomes were alcohol use, binge drinking (five or more standard drinks) and alcohol-related harms, obtained from all students regardless of whether or not they received intervention. Intervention effects at 36 months post-baseline were estimated from generalized multi-level mixed models using data from all time-points and accounting for school-level clustering. Exploratory analyses examined intervention effects among low- and high-risk adolescents.

FINDINGS

Compared with students in the control condition, students in the climate, preventure and CAP groups demonstrated significantly slower increases in their likelihood to drink any alcohol [odds ratio (OR) = 0.64, 95% confidence interval (CI) = 0.50-0.82 for climate; OR = 0.55, 95% CI = 0.43-0.71 for preventure and OR = 0.67, 95% CI = 0.53-0.84 for CAP] to engage in binge drinking (OR = 0.60, 95% CI = 0.44-0.82 for climate; OR = 0.59, 95% CI = 0.44-0.80 for preventure and OR = 0.68, 95% CI = 0.51-0.92 for CAP) and to experience alcohol harms (OR = 0.63, 95% CI = 0.49-0.82 for climate; OR = 0.55, 95% CI = 0.43-0.71 for preventure and OR = 0.64, 95% CI = 0.50-0.81 for CAP). There was no strong evidence that the combined approach showed advantages over universal prevention. The direction and magnitude of effects were consistent in low- and high-risk adolescents.

CONCLUSIONS

The universal Climate Schools programme and the selective preventure programme were effective in reducing alcohol consumption and alcohol problems compared with standard Australian health education, when trialled individually and together over a 3-year period.

Population patterns in Alcohol Use Disorders Identification Test (AUDIT) scores in the Australian population; 2007-2016

OBJECTIVES

Despite widespread use of the Alcohol Use Disorders Identification Test (AUDIT), there are no published contemporary population-level scores for Australia. We examined population-level AUDIT scores and hazardous drinking for Australia over the period 2007-2016.

METHODS

Total population, age- and gender-specific AUDIT scores, and the percentage of the population with an AUDIT score of 8 or more (indicating hazardous drinking), were derived from four waves of the nationally representative National Drug Strategy Household Survey, weighted to approximate the Australian population.

RESULTS

In 2016, the mean AUDIT score was 4.58, and 22.22% of the population scored ≥8. Both measures remained stable from 2007 to 2010 but declined in 2013 and 2016. Scores were highest in those aged 18-24 years, the lowest in those aged 14-17 or 60+. A downward trend in AUDIT scores was seen in younger age groups, while the 40-59 and 60+ groups increased or did not change.

CONCLUSIONS

Despite an overall decline in AUDIT scores, nearly one-quarter of Australians reported hazardous drinking. Implications for public health: The marked declines in hazardous drinking among young people are positive, but trends observed among those aged 40-59 and 60+ years suggests targeted interventions for older Australians are needed.

Bidirectional relationships in the development of internalising symptoms and alcohol use in adolescence

INTRODUCTION AND AIMS

Previous literature has demonstrated an inconsistent relationship between alcohol use and internalising symptoms (anxiety, depression) in youth. This study aimed to clarify this link examining the bidirectional relationships between internalising symptoms and alcohol use in a community sample of adolescents, taking into account the effect of gender and externalising symptoms.

DESIGN AND METHODS

Parallel latent growth models were run to prospectively explore the bidirectional relationships between internalising symptoms and alcohol use when assessed five times over 2 years, among 1557 (67% female) adolescents from age 13.5 years.

RESULTS

Results showed that higher initial levels of internalising symptoms predicted increasing alcohol use frequency; however, this association was no longer significant once externalising symptoms and gender were accounted for. No bidirectional associations between internalising symptoms and alcohol use were found.

DISCUSSION AND CONCLUSIONS

This study adds to the literature examining the bidirectional relationships between internalising symptoms and alcohol use in adolescence. Findings highlight the importance of both gender and externalising symptoms in the development of this type of comorbidity and may help explain discrepant findings in the existing literature. Future prevention efforts for internalising problems and alcohol use should consider gender and externalising symptoms.

The impact of reducing alcohol consumption in Australia: An estimate of the proportion of potentially avoidable cancers 2013-2037

The International Agency for Research on Cancer first concluded that alcohol causes cancer in humans in 1988. The World Cancer Research Fund has declared that alcohol causes cancer of the oral cavity, pharynx, larynx, oesophagus (squamous cell carcinoma), female breast, colon, rectum, stomach and liver. It recommended that alcohol be avoided altogether to prevent cancer. We aimed to quantify the impact of reducing alcohol consumption on future cancer incidence in Australia. We used PREVENT 3.01 simulation modelling software to estimate the proportion of cancers that could potentially be prevented over a 25-year period under two hypothetical intervention scenarios and two latency periods (20 and 30 years). Under a scenario where alcohol consumption abruptly ceases, we estimated up to 4% of alcohol-related cancers could be avoided over a 25-year period (~49,500 cancers, depending on assumed latency). If the maximum consumption of all Australian adults was ≤20 g/day (~two Australian standard drinks), up to 2% of alcohol-related cancers could be avoided (~29,600 cancers). The maximum proportions were higher for men (6% for no alcohol consumption; 5% for ≤20 g/day) than women (3%; 1%). The proportion avoidable was highest for oesophageal squamous cell carcinoma (17% no alcohol consumption; 9% ≤20 g/day), followed by cancers of the oral cavity (12%; 5%) and pharynx (11%; 5%). The cancer sites with the highest numbers of potentially avoidable cases were colon in men (11,500; 9,900) and breast in women (14,400; 4,100). Successful interventions to reduce alcohol intake could lead to significant reductions in cancer incidence.

Declining hepatitis C virus-related liver disease burden in the direct-acting antiviral therapy era in New South Wales, Australia

BACKGROUND & AIMS

Population-level evidence for the impact of direct-acting antiviral (DAA) therapy on hepatitis C virus (HCV)-related disease burden is lacking. We aimed to evaluate trends in HCV-related decompensated cirrhosis and hepatocellular carcinoma (HCC) hospitalisation, and liver-related and all-cause mortality in the pre-DAA (2001-2014) and DAA therapy (2015-2017) eras in New South Wales, Australia.

METHODS

HCV notifications (1993-2016) were linked to hospital admissions (2001-2017) and mortality (1995-2017). Segmented Poisson regressions and Poisson regression were used to assess the impact of DAA era and factors associated with liver-related mortality, respectively.

RESULTS

Among 99,910 people with an HCV notification, 3.8% had a decompensated cirrhosis diagnosis and 1.8% had an HCC diagnosis, while 3.3% and 10.5% died of liver-related and all-cause mortality, respectively. In the pre-DAA era, the number of decompensated cirrhosis and HCC diagnoses, and liver-related and all-cause mortality consistently increased (incidence rate ratios 1.04 [95% CI 1.04-1.05], 1.08 [95% CI 1.07-1.08], 1.07 [95% CI 1.06-1.07], and 1.05 [95% CI 1.04-1.05], respectively) over each 6-monthly band. In the DAA era, decompensated cirrhosis diagnosis and liver-related mortality numbers declined (incidence rate ratios 0.97 [95% CI 0.95-0.99] and 0.96 [95% CI 0.94-0.98], respectively), and HCC diagnosis and all-cause mortality numbers plateaued (incidence rate ratio 1.00 [95% CI 0.97-1.03] and 1.01 [95% CI 1.00-1.02], respectively) over each 6-monthly band. In the DAA era, alcohol-use disorder (AUD) was common in patients diagnosed with decompensated cirrhosis and HCC (65% and 46% had a history of AUD, respectively). AUD was independently associated with liver-related mortality (incidence rate ratio 3.35; 95% CI 3.14-3.58).

CONCLUSIONS

In the DAA era, there has been a sharp decline in liver disease morbidity and mortality in New South Wales, Australia. AUD remains a major contributor to HCV-related liver disease burden, highlighting the need to address comorbidities.

LAY SUMMARY

Rising hepatitis C-related morbidity and mortality is a major public health issue. However, development of highly effective medicines against hepatitis C (called direct-acting antivirals or DAAs) means hepatitis C could be eliminated as a public health threat by 2030. This study shows a sharp decline in liver disease morbidity and mortality since the introduction of DAAs in New South Wales, Australia. Despite this, heavy alcohol use remains an important risk factor for liver disease among people with hepatitis C. To ensure that the benefits of new antiviral treatments are not compromised, management of major comorbidities, including heavy alcohol use must improve among people with hepatitis C.

Predicting Alcohol Misuse Among Australian 19-Year-Olds from Adolescent Drinking Trajectories

BACKGROUND

Alcohol use in adolescence predicts future alcohol misuse. However, the extent to which different patterns of adolescent use present risk remains unclear.

OBJECTIVES

This study investigated how adolescent trajectories of alcohol consumption during the school years predict alcohol misuse at age 19 years.

METHODS

Data were drawn from 707 students from Victoria, Australia, longitudinally followed for 7 years. Five alcohol use trajectories were identified based on the frequency of alcohol use from Grade 6 (age 12 years) to Grade 11 (age 17 years). At age 19 years, participants completed measures indicating Heavy Episodic Drinking (HED), dependency - Alcohol Use Disorders Identification Test (AUDIT) and social harms.

RESULTS

At 19 years of age, 64% of participants reported HED, 42% high AUDIT scores (8+), and 23% social harms. Participants belonging to a steep escalator trajectory during adolescence had twice the odds at 19 years of age of high AUDIT scores and social harms, and three times greater odds of HED than participants whose alcohol use slowly increased. Stable moderate consumption was also associated with an increased risk of HED compared to slowly increasing use. Abstinence predicted a reduced likelihood of all forms of misuse at 19 years of age compared to slowly increased alcohol use.

CONCLUSIONS

Trajectories of drinking frequency during adolescence predict alcohol misuse at age 19 years. Although rapid increasing use presents the greatest risk, even slowly increasing drinking predicts increased risk compared to abstinence. The findings indicate that alcohol policies should recommend nonuse and reduced frequency of use during adolescence.

Investigating the growing trend of non-drinking among young people; analysis of repeated cross-sectional surveys in England 2005-2015

BACKGROUND

Non-drinking among young people has increased over the past decade in England, yet the underlying factor driving this change is unknown. Traditionally non-drinking has been found to be associated with lower socio-economic status and poorer health. This study explores among which sub-groups non-drinking has increased, and how this correlates with changes in drinking patterns, to identify whether behaviours are becoming more polarised, or reduction is widespread among young people.

METHODS

Among participants aged 16 to 24 years (N = 9699), within the annual cross-sectional nationally-representative Health Survey for England 2005-2015 datasets, the following analyses were conducted: 1) The proportion of non-drinkers among social-demographic and health sub-groups by year, and tests for linear trends among sub-groups, adjusting for age were calculated. In pooled analyses, an interaction between year and each variable was modelled in sex- and age-adjusted logistic regression models on the odds of being a non-drinker versus drinker 2) At the population level, spearman correlation co-efficients were calculated between the proportion non-drinking and the mean alcohol units consumed and binge drinking on the heaviest drinking day, by year. Ordinary least squares regression analyses were used, modelling the proportion non-drinking as the independent variable, and the mean units/binge drinking as the dependent variable.

RESULTS

Rates of non-drinking increased from 18% (95%CI 16-22%) in 2005 to 29% (25-33%) in 2015 (test for trend; p < 0.001), largely attributable to increases in lifetime abstention. Not drinking in the past week increased from 35% (32-39%) to 50% (45-55%) (p < 0.001). Significant linear increases in non-drinking were found among most sub-groups including healthier sub-groups (non-smokers, those with high physical activity and good mental health), white ethnicity, north and south regions, in full-time education, and employed. No significant increases in non-drinking were found among smokers, ethnic minorities and those with poor mental health. At the population-level, significant negative correlations were found between increases in non-drinking and declines in the mean units consumed (ρ = - 0.85, p < 0.001), and binge drinking (ρ = - 0.87, p < 0.001).

CONCLUSION

Increases in non-drinking among young people has coincided with a delayed initiation into alcohol consumption, and are to be welcomed. Future research should explore attitudes towards drinking among young people.

Trends and Correlates of High-Risk Alcohol Consumption and Types of Alcoholic Beverages in Middle-Aged Korean Adults: Results From the HEXA-G Study

Background

We aimed to report the prevalence and correlates of high-risk alcohol consumption and types of alcoholic beverages.

Methods

The baseline data of the Health Examinees-Gem (HEXA-G) study participants, including 43,927 men and 85,897 women enrolled from 2005 through 2013, were used for analysis. Joinpoint regression was performed to estimate trends in the age-standardized prevalence of alcohol consumption. Associations of demographic and behavioral factors, perceived health-related effects, social relationships, and the diagnostic history of diseases with alcohol consumption were assessed using multinomial logistic regression.

Results

The prevalence of alcohol consumption remained higher in men during the study period and increased in women. The amount of alcohol consumed has increased in women, especially that from beer and makgeolli, a traditional Korean fermented rice wine. Older participants were less likely to be high-risk drinkers (men and women who drink more than 40 or 20 g/day of alcohol, respectively) and drink Soju, a distilled liquor, and beer, and more likely to drink makgeolli. Educational level was negatively associated with high-risk drinking. However, it was positively associated with the consumption of strong spirits and wine. Smoking was associated with high-risk drinking and the consumption of soju and strong spirits. Engaging in regular exercise and having stress were associated with drinking all types of beverages except for soju.

Conclusions

Sex-specific trends in alcohol consumption were influenced by demographic, behavioral, and perceived health-related factors. The findings will help improve the understanding of alcohol-related problems and provide evidence for establishing country-specific policies and campaigns in Korea.

Novel approaches to alcohol rehabilitation: Modification of stress-responsive brain regions through environmental enrichment

Relapse remains the most prominent hurdle to successful rehabilitation from alcoholism. The neural mechanisms underlying relapse are complex, but our understanding of the brain regions involved, the anatomical circuitry and the modulation of specific nuclei in the context of stress and cue-induced relapse have improved significantly in recent years. In particular, stress is now recognised as a significant trigger for relapse, adding to the well-established impact of chronic stress to escalate alcohol consumption. It is therefore unsurprising that the stress-responsive regions of the brain have also been implicated in alcohol relapse, such as the nucleus accumbens, amygdala and the hypothalamus. Environmental enrichment is a robust experimental paradigm which provides a non-pharmacological tool to alter stress response and, separately, alcohol-seeking behaviour and symptoms of withdrawal. In this review, we examine and consolidate the preclinical evidence that alcohol seeking behaviour and stress-induced relapse are modulated by environmental enrichment, and these are primarily mediated by modification of neural activity within the key nodes of the addiction circuitry. Finally, we discuss the limited clinical evidence that stress-reducing approaches such as mindfulness could potentially serve as adjunctive therapy in the treatment of alcoholism. This article is part of the Special Issue entitled "Neurobiology of Environmental Enrichment".