25 January 2019 In Drinking & Eating Patterns

INTRODUCTION: Age of first drink is a key risk factor for adolescent high-risk alcohol use. The current study examined whether speed of escalation from first drink to first intoxication is an additional risk factor, and whether these two factors are associated with binge and high-intensity drinking among adolescents.

METHODS: Data collected in 2005-2017 from a nationally-representative sample of 11,100 U.S. 12th grade students participating in the Monitoring the Future study were coded to indicate grade of first drink, grade of first intoxication, and speed of escalation from first drink to first intoxication. Logistic regression models estimated bivariate and multivariable odds of past 2-week binge (5+ drinks in a row) and high-intensity (10+ drinks in a row) drinking in 12th grade.

RESULTS: Of those who reported intoxication by 12th grade, almost 60% reported first drunkenness in the same grade in which they first drank. The likelihoods of 12th grade binge and high-intensity drinking were significantly associated with both grade of first drink and speed of escalation to intoxication. Past two-week high-intensity drinking prevalence was 17.4% among those with immediate (same-grade) escalation from first drink to first intoxication; 15.8% among those with a 1-grade delay, and 12.6% among those with a 2+ grade delay to intoxication.

CONCLUSIONS: The majority of students escalate quickly from having their first drink to being intoxicated for the first time. Both earlier age of first drink and a faster escalation from first drink to first intoxication are important indicators of binge and high-intensity drinking risk among adolescents.

27 July 2018 In Social and Cultural Aspects

Despite the pervasive use of social media by young adults, there is comparatively little known about whether, and how, engagement in social media influences this group's drinking patterns and risk of alcohol-related problems. We examined the relations between young adults' alcohol-related social media engagement (defined as the posting, liking, commenting, and viewing of alcohol-related social media content) and their drinking behavior and problems. We conducted a systematic review and meta-analysis of studies evaluating the association of alcohol consumption and alcohol-related problems with alcohol-related social media engagement. Summary baseline variables regarding the social media platform used (e.g., Facebook and Twitter), social media measures assessed (e.g., number of alcohol photographs posted), alcohol measures (e.g., Alcohol Use Disorders Identification Test and Timeline Follow back Interview), and the number of time points at which data were collected were extracted from each published study. We used the Q statistic to examine heterogeneity in the correlations between alcohol-related social media engagement and both drinking behavior and alcohol-related problems. Because there was significant heterogeneity, we used a random-effects model to evaluate the difference from zero of the weighted aggregate correlations. We used metaregression with study characteristics as moderators to test for moderators of the observed heterogeneity. Following screening, 19 articles met inclusion criteria for the meta-analysis. The primary findings indicated a statistically significant relationship and moderate effect sizes between alcohol-related social media engagement and both alcohol consumption (r = 0.36, 95% CI: 0.29 to 0.44, p < 0.001) and alcohol-related problems (r = 0.37, 95% CI: 0.21 to 0.51, p < 0.001). There was significant heterogeneity among studies. Two significant predictors of heterogeneity were (i) whether there was joint measurement of alcohol-related social media engagement and drinking behavior or these were measured on different occasions and (ii) whether measurements were taken by self-report or observation of social media engagement. We found moderate-sized effects across the 19 studies: Greater alcohol-related social media engagement was correlated with both greater self-reported drinking and alcohol-related problems. Further research to determine the causal direction of these associations could provide opportunities for social media-based interventions with young drinkers aimed at reducing alcohol consumption and alcohol-related adverse consequences.

03 May 2018 In Liver Disease
To what extent could alcohol consumption affects female fertility is still unclear. The aim of this study was to quantitatively summarize the dose-response relation between total and specific types of alcohol beverage (beer, wine, and spirits) consumption in female and the fecundability. Four electronic databases were searched. Observational studies (cohort and case-control) that provided female alcohol consumption and fecundity were eligible. Nineteen studies, involving 98657 women, were included in this study. Compared to non-drinkers, the combined estimate (with relative risk, RR) of alcohol consumers on fecundability was 0.87 (95% CI 0.78-0.95) for overall 19 studies. Compared to non-drinkers, the pooled estimates were 0.89 (95% CI 0.82-0.97) for light drinkers (=12.5 g/day of ethanol) and 0.77 (95% CI 0.61-0.94) for moderate-heavy drinkers (>12.5 g/day of ethanol). Moreover, compared to non-drinkers, the corresponding estimates on fecundability were 0.98 (95% CI 0.85-1.11), 1.02 (95% CI 0.99-1.05), and 0.92 (95% CI 0.83-1.01) for studies focused on wine, beer and spirits, respectively. Dose-response meta-analysis suggested a linear association between decreased fecundability and every 12.5 g/d increasing in alcohol consumption with a RR 0.98 (95% CI 0.97-0.99). This first systematic review and meta-analysis suggested that female alcohol consumption was associated with a reduced fecundability
03 May 2018 In General Health
BACKGROUND: A strict high legal age limit for alcohol purchases decreases adolescents' access to alcohol, but little is known about long-term health effects. The aim was to estimate the effect of increased alcohol availability during adolescence on alcohol-related morbidity and mortality. METHODS: A nationwide register-based study using data from a natural experiment setting. In two regions of Sweden, strong beer (4.5%-5.6% alcohol by volume) became temporarily available for purchase in grocery stores for individuals 16 years or older (instead of 21) in 1967/1968. The intervention group was defined as all individuals living in the intervention area when they were 14-20 years old (n=72 110). The remaining Swedish counties excluding bordering counties, without the policy change, were used as the control group (n=456 224). The outcomes of alcohol-related morbidity and mortality were collected from the Hospital Discharge Register and Cause of Death Register, in which average follow-up times were 38 years and 41 years, respectively. HRs with 95% CIs were obtained by Cox regression analysis. RESULTS: In the fully adjusted model, no clear evidence of an association between increased alcohol availability during adolescence and alcohol-related morbidity (HR: 0.99, 95% CI 0.96 to 1.02) or mortality (HR: 1.02, 95% CI 0.95 to 1.10) was found. CONCLUSION: The initial elevated risk of alcohol-related morbidity and mortality later in life among adolescents exposed to increased access to strong beer in Sweden vanished when a regional measure population density of locality was included in the model, which is important to consider in future research
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