National and regional prevalence of interpersonal violence from others' alcohol use: a systematic review and modelling study

Background

While alcohol use is an established risk factor for interpersonal violence, the extent to which people are affected by interpersonal violence from others' drinking has not yet been quantified for different world regions. This modelling study aims to provide the first estimates of the national and regional prevalence of interpersonal violence from others' drinking.

Methods

An international systematic literature search (02/28/2023, Prospero: CRD42022337364) was conducted to identify general adult population studies assessing the prevalence of interpersonal violence from others' drinking with no restrictions to publication date or language. Reports that did not provide data on interpersonal violence from others' drinking (primary outcome), were no original research studies, or captured a selected group of people only, were excluded. Observed prevalence data were extracted and used to build fractional response regression models to predict past-year prevalence of emotional and physical violence from others' drinking in 2019. Random-effects meta-regression models were used to aggregate the observed prevalence of sexual and intimate partner violence. Study risk of bias (ROB) was assessed using a modified version of the Newcastle-Ottawa Scale.

Findings

Out of 13,835 identified reports, 50 were included covering just under 830,000 individuals (women: 347,112; men: 322,331; men/women combined: 160,057) from 61 countries. With an average prevalence of 16·8% (95% CI: 15·2-18·3%) and 28·3% (95% CI: 23·9-32·4%) in men and women combined in the GBD super regions High Income and Central Europe, Eastern Europe, & Central Asia, respectively, emotional violence was the most common form of interpersonal violence from others' drinking. Physical violence averaged around 3% (women) and 5% (men) in both regions. The pooled prevalence of sexual violence from others' drinking in men and women was 1·3% (95% CI: 0·5-3·3%, 95% PI: 0·1-16·9%) and 3·4% (95% CI: 1·4-8·3%, 95% PI: 0·2-35·3%), respectively, and ranged between 0·4% (95% CI: 0·1-1·6%, 95% PI: 0·0-7·3%) and 2·7% (95% CI: 1·1-6·3%, 95% PI: 0·2-30·0%) for different forms of intimate partner violence. ROB was moderate or critical for most reports; accounting for critical ROB did not substantially alter our results.

Interpretation

The share of the population experiencing harms from others' drinking is significant and should be an integral part of public health strategies.

Funding

Research reported in this publication was supported by the Canadian Institutes of Health Research (CIHR; grant: CIHR FRN 477887).

Alcohol's harm to others in Japan: Different rates for different relationships to the drinker in a 2018 national survey

INTRODUCTION

No study in Japan has investigated alcohol's harm to others (AHTO). Therefore, this study aimed to reveal the situation of AHTO in Japan and examine the factors associated with it based on the relationship with the drinker.

METHODS

A cross-sectional population-based survey was performed in 2018 with 2121 men and 2507 women. Respondents were asked questions about factors such as verbal or physical aggression, being forced to drink alcohol, sexual harassment and their relationship with the drinker. Binomial logistic regression was performed to quantify the associations of AHTO with participants' socio-demographic status and drinking patterns.

RESULTS

The lifetime experience of AHTO was 24.7% for men and 19.3% for women. AHTO from the father and co-workers were the most common in and outside the home, respectively. The frequency of AHTO from the spouse or co-workers showed no significant difference for abstainers and drinkers. However, AHTO from the father was more commonly reported among drinkers and those with Alcohol Use Disorders Identification Test scores ≥8 points than abstainers. Of those who experienced AHTO, 24.5% of men and 27.6% of women, and 6.1% of men and 12.9% of women were profoundly affected by it in and outside the home, respectively.

DISCUSSION AND CONCLUSIONS

One in five Japanese residents experienced AHTO in their life, and the characteristics associated with AHTO differed according to the affected individual's relationship with the drinker. Continued monitoring of AHTO and measures aimed at reducing alcohol-related harm that include AHTO should be promoted.

Country-Level Heavy Episodic Drinking and Individual-Level Experiences of Harm from Others' Drinking-Related Aggression in 19 European Countries

INTRODUCTION

There is limited knowledge about how individual experiences of harm from others' drinking are influenced by heavy episodic drinking (HED) at the country level. The present study aimed to assess (1) the association between the country-level prevalence of HED and the risk of experiencing harm from others' drinking-related aggression and (2) if HED at the country level modifies the association between consumption of alcohol per capita (APC) and such harm.

METHODS

Outcome data from 32,576 participants from 19 European countries stem from the RARHA SEAS study. Self-reported harm from others' drinking included having been verbally abused, harmed physically, or having serious arguments. Data on country-level drinking patterns were derived from the World Health Organization. Associations between country-level prevalence of monthly HED and experiences of aggression (at least 1 of 3 studied harms) were derived through multilevel models - adjusted for country-level age structure and by including the respondent's own HED patterns as a mediator.

RESULTS

A 1% increase in the prevalence of monthly HED was associated with 5% higher odds (odds ratio [OR] 1.05) of experiencing others' alcohol-related aggression among men, and 6% (OR 1.06) among women. The results suggest that the association between APC and harm was stronger in countries with high prevalences of HED, but the modifying effect could not be confirmed.

DISCUSSION/CONCLUSION

Harm from others' drinking-related aggression depends not only on individual factors but is also influenced by the drinking patterns of the population. However, the country-level prevalence of HED only explains a small part of the variance of this type of harm.

Alcohol Use and Harm to Children by Parents and Other Adults

This study used mixed methods to examine parent-reported harm to children (lack of supervision or physical harm) due to alcohol use by themselves or someone else as well as parent beliefs about alcohol, parenting, and harms to children. We conducted a cross-sectional general population survey of 1,599 parents who were primary caregivers to a child aged 10 or younger and follow-up interviews with 23 parents who responded "yes" to one of the questions about alcohol use causing harm their child. Survey data were analyzed using multilevel logistic models. Compared to abstainers, parents who drank at least once a year were less likely to report that someone else's drinking caused a lack of supervision or physical harm to their child. Higher continued volumes of drinking were related to fewer reports of not watching a child closely enough. Social companionship support (having people to go out with) was related to greater odds that a parent's drinking would cause physical harm to his or her child(ren). In the qualitative analysis, four relevant themes emerged: perceived effects of alcohol use, tangible support and child supervision, immediate and distal harm, and turning points in drinking behaviors.

"It's like being stuck on an unsafe and unpredictable rollercoaster": Experiencing substance use problems in a partner

Living with a partner with substance abuse problems may induce strains in an individual’s everyday life, including poor health, disrupted family life, and social isolation; this may lead to dropping out of education or work, a lack of safety and support, and facing various dilemmas and stigma.

Improving measurement of harms from others' drinking: A key informant study on type and severity of harm

Aims:

Survey items for measuring harms experienced from others' drinking (AHTO) have been developed primarily to measure type of harm and not severity. However, some type of harms may produce more negative effects than others. We aimed to compare the perceived severity of a comprehensive list of AHTO items to assess consistency in subjective ratings of severity, facilitate a more nuanced analysis and identify strategies to improve measurement of AHTO in epidemiological surveys.

Methods:

Thirty-six leaders of national alcohol surveys (conducted between 1997 and 2016) from 23 countries rated the typical severity of negative effects on the victim of each of 48 types of AHTO using a scale from zero (no negative effect) to 10 (very severe negative effect). The survey leaders were also asked to provide open-ended feedback about each harm and the severity-rating task generally.

Results:

Of 48 harm items, five were classified as extreme severity (mean rating ≥ 8), 17 as high (≥ 6 < 8), 25 as moderate (≥ 4 < 6), and one as low (≤ 4). We used two-way random effects models to estimate absolute agreement intraclass correlation coefficients (AA-ICC) and consistency of agreement intraclass correlation coefficients (CA-ICC). Results showed that there was fair to excellent absolute agreement and consistency of agreement among experts’ ratings of the severity of harms from others’ drinking (single measures CA-ICC = 0.414, single measures AA-ICC = 0.325; average CA-ICC = 0.940, average AA-ICC = 0.914). Harms to children, and harms causing physical, financial, practical, or severe emotional impacts were rated most severe.

Conclusions:

When designing new AHTO surveys and conducting analyses of existing data, researchers should pay close attention to harms with high perceived severity to identify effective ways to prevent severe AHTO and reduce the negative health and social impacts of AHTO. By inquiring into experts' views on survey items, this analysis involves a first scoping of the sort of questions that should be taken into consideration. In-depth analyses of specific sub-sets of harms and qualitative interviews with victims of severe AHTO are likely to help along this work in the future.

Alcohol use and its consequences in the Czech Republic

OBJECTIVE

Alcohol consumption is associated with substantial public health burden. This article summarises available information on the patterns and prevalence of alcohol use in the Czech Republic with a focus on the heavy alcohol use and its health and social consequences.

METHODS

A non-systematic literature review was conducted. The data sources included primarily 3 series of surveys in the adult population, 2 series of surveys in the school population, routine monitoring system of per capita alcohol consumption, routine statistics on alcohol-related morbidity and mortality, and alcohol-related crime.

RESULTS

In recent years the registered alcohol consumption in the Czech Republic has been very high; 9.8 litres of pure alcohol were consumed per capita in 2017. Recently, the prevalence of hazardous alcohol consumption in the adult population has reached 16.8-17.6% and harmful alcohol consumption 9.0-9.3%. From 12% to 17% of adult population and 12% of adolescent population were heavy episodic drinkers. Alcohol-related disorders are disproportionately higher (2-3 times) among men. Mortality for alcohol-related causes fully attributable to alcohol (AAF = 100%) and their proportion in overall mortality is on increase.

CONCLUSIONS

Alcohol consumption as well as the prevalence of heavy episodic drinking in the Czech Republic belongs among the highest globally. On the other hand, declines in alcohol use have been recently observed among children and adolescents. Available data on alcohol-related morbidity indicate stable situation, though alcohol-related mortality is increasing. Alcohol-related burden is rather underestimated and evidence-based alcohol policy should be increasingly implemented.

Quantifying harms to others due to alcohol consumption in Germany: a register-based study

BACKGROUND

The consumption of alcohol increases the risk of drinkers harming others. The extent of alcohol's morbidity and mortality harms to others in Germany in 2014 was estimated for (1) fetal alcohol syndrome (FAS) or fetal alcohol spectrum disorders (FASD) among newborns, (2) road traffic fatalities, and (3) interpersonal violence-related deaths.

METHODS

The incidences of FAS and FASD were estimated by means of a meta-analytical approach, combining data on alcohol use during pregnancy and the risk relationship between alcohol consumption during pregnancy and FAS/FASD. In order to estimate alcohol-attributable road traffic fatalities and interpersonal violence due to the drinking of others, an attributable fraction methodology was applied to cause-of-death statistics for road traffic and interpersonal violence-related deaths.

RESULTS

For 2014, the incidences of FAS and FASD were estimated at 41 children per 10,000 live births (95% CI 24; 63) and 177 children per 10,000 live births (95% CI 135; 320), or 2930 (95% CI 1720; 4500) and 12,650 (95% CI 9650; 23,310) children, respectively. Furthermore, alcohol was estimated to be responsible for 1214 (95% CI 1141; 1287) third-party road traffic fatalities and 55 (95% CI 46; 64) deaths from interpersonal violence, representing 45.1% of all third-party road traffic fatalities and 14.9% of all interpersonal violence deaths.

CONCLUSION

These study's estimates indicate there is a substantial degree of health harm to third parties caused by alcohol in Germany. While more research on harms to others caused by alcohol is needed to provide comprehensive estimates, the results indicate a need for effective prevention.

The social location of harm from others' drinking in 10 societies

AIMS

Survey data from 10 diverse countries were used to analyse the social location of harms from others' drinking: which segments of the population are more likely to be adversely affected by such harm, and how does this differ between societies?

METHODS

General-population surveys in Australia, Chile, India, Laos, New Zealand, Nigeria, Sri Lanka, Thailand, United States and Vietnam, with a primary focus on the social location of the harmed person by gender, age groups, rural/urban residence and drinking status. Harms from known drinkers were analysed separately from harms from strangers.

RESULTS

In all sites, risky or moderate drinkers were more likely than abstainers to report harm from the drinking of known drinkers, with risky drinkers the most likely to report harm. This was also generally true for harm from strangers' drinking, although the patterns were more mixed in Vietnam and Thailand. Harm from strangers' drinking was more often reported by males, while gender disparity in harm from known drinkers varied between sites. Younger adults were more likely to experience harm both from known drinkers and from strangers in some, but not all, societies. Only a few sites showed significant urban/rural differences, with disparities varying in direction. In multivariate analyses, most relationships remained, although some were no longer significant.

CONCLUSION

The social location of harms from others' drinking, whether known or a stranger, varies considerably between societies. One near-commonality among the societies is that those who are themselves risky drinkers are more likely to suffer harm from others' drinking.

Harm from Known Others' Drinking by Relationship Proximity to the Harmful Drinker and Gender: A Meta-Analysis Across 10 Countries

BACKGROUND

Drinking is a common activity with friends or at home but is associated with harms within both close and extended relationships. This study investigates associations between having a close proximity relationship with a harmful drinker and likelihood of experiencing harms from known others' drinking for men and women in 10 countries.

METHODS

Data about alcohol's harms to others from national/regional surveys from 10 countries were used. Gender-stratified random-effects meta-analysis compared the likelihood of experiencing each, and at least 1, of 7 types of alcohol-related harm in the last 12 months, between those who identified someone in close proximity to them (a partner, family member, or household member) and those who identified someone from an extended relationship as the most harmful drinker (MHD) in their life in the last 12 months.

RESULTS

Women were most likely to report a close male MHD, while men were most likely to report an extended male MHD. Relatedly, women with a close MHD were more likely than women with an extended MHD to report each type of harm, and 1 or more harms, from others' drinking. For men, having a close MHD was associated with increased odds of reporting some but not all types of harm from others' drinking and was not associated with increased odds of experiencing 1 or more harms.

CONCLUSIONS

The experience of harm attributable to the drinking of others differs by gender. For preventing harm to women, the primary focus should be on heavy or harmful drinkers in close proximity relationships; for preventing harm to men, a broader approach is needed. This and further work investigating the dynamics among gender, victim-perpetrator relationships, alcohol, and harm to others will help to develop interventions to reduce alcohol-related harm to others which are specific to the contexts within which harms occur.