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. 2018 Apr 14;391(10129):1513-1523.
doi: 10.1016/S0140-6736(18)30134-X.

Risk thresholds for alcohol consumption: combined analysis of individual-participant data for 599 912 current drinkers in 83 prospective studies

Angela M Wood  1 Stephen Kaptoge  2 Adam S Butterworth  2 Peter Willeit  3 Samantha Warnakula  2 Thomas Bolton  2 Ellie Paige  4 Dirk S Paul  2 Michael Sweeting  2 Stephen Burgess  5 Steven Bell  2 William Astle  2 David Stevens  2 Albert Koulman  6 Randi M Selmer  7 W M Monique Verschuren  8 Shinichi Sato  9 Inger Njølstad  10 Mark Woodward  11 Veikko Salomaa  12 Børge G Nordestgaard  13 Bu B Yeap  14 Astrid Fletcher  15 Olle Melander  16 Lewis H Kuller  17 Beverley Balkau  18 Michael Marmot  19 Wolfgang Koenig  20 Edoardo Casiglia  21 Cyrus Cooper  22 Volker Arndt  23 Oscar H Franco  24 Patrik Wennberg  25 John Gallacher  26 Agustín Gómez de la Cámara  27 Henry Völzke  28 Christina C Dahm  29 Caroline E Dale  30 Manuela M Bergmann  31 Carlos J Crespo  32 Yvonne T van der Schouw  33 Rudolf Kaaks  23 Leon A Simons  34 Pagona Lagiou  35 Josje D Schoufour  24 Jolanda M A Boer  36 Timothy J Key  37 Beatriz Rodriguez  38 Conchi Moreno-Iribas  39 Karina W Davidson  40 James O Taylor  41 Carlotta Sacerdote  42 Robert B Wallace  43 J Ramon Quiros  44 Rosario Tumino  45 Dan G Blazer 2nd  46 Allan Linneberg  47 Makoto Daimon  48 Salvatore Panico  49 Barbara Howard  50 Guri Skeie  51 Timo Strandberg  52 Elisabete Weiderpass  53 Paul J Nietert  54 Bruce M Psaty  55 Daan Kromhout  56 Elena Salamanca-Fernandez  57 Stefan Kiechl  58 Harlan M Krumholz  59 Sara Grioni  60 Domenico Palli  61 José M Huerta  62 Jackie Price  63 Johan Sundström  64 Larraitz Arriola  65 Hisatomi Arima  66 Ruth C Travis  37 Demosthenes B Panagiotakos  67 Anna Karakatsani  68 Antonia Trichopoulou  68 Tilman Kühn  23 Diederick E Grobbee  33 Elizabeth Barrett-Connor  69 Natasja van Schoor  70 Heiner Boeing  31 Kim Overvad  71 Jussi Kauhanen  72 Nick Wareham  73 Claudia Langenberg  73 Nita Forouhi  73 Maria Wennberg  25 Jean-Pierre Després  74 Mary Cushman  75 Jackie A Cooper  19 Carlos J Rodriguez  76 Masaru Sakurai  77 Jonathan E Shaw  78 Matthew Knuiman  79 Trudy Voortman  24 Christa Meisinger  80 Anne Tjønneland  81 Hermann Brenner  82 Luigi Palmieri  83 Jean Dallongeville  84 Eric J Brunner  19 Gerd Assmann  85 Maurizio Trevisan  86 Richard F Gillum  87 Ian Ford  88 Naveed Sattar  88 Mariana Lazo  89 Simon G Thompson  2 Pietro Ferrari  90 David A Leon  15 George Davey Smith  91 Richard Peto  37 Rod Jackson  92 Emily Banks  4 Emanuele Di Angelantonio  2 John Danesh  93 Emerging Risk Factors Collaboration/EPIC-CVD/UK Biobank Alcohol Study Group
Collaborators, Affiliations

Risk thresholds for alcohol consumption: combined analysis of individual-participant data for 599 912 current drinkers in 83 prospective studies

Angela M Wood et al. Lancet. .

Erratum in

  • Department of Error.
    [No authors listed] [No authors listed] Lancet. 2018 Jun 2;391(10136):2212. doi: 10.1016/S0140-6736(18)31168-1. Epub 2018 Jun 1. Lancet. 2018. PMID: 29893221 Free PMC article. No abstract available.

Abstract

Background: Low-risk limits recommended for alcohol consumption vary substantially across different national guidelines. To define thresholds associated with lowest risk for all-cause mortality and cardiovascular disease, we studied individual-participant data from 599 912 current drinkers without previous cardiovascular disease.

Methods: We did a combined analysis of individual-participant data from three large-scale data sources in 19 high-income countries (the Emerging Risk Factors Collaboration, EPIC-CVD, and the UK Biobank). We characterised dose-response associations and calculated hazard ratios (HRs) per 100 g per week of alcohol (12·5 units per week) across 83 prospective studies, adjusting at least for study or centre, age, sex, smoking, and diabetes. To be eligible for the analysis, participants had to have information recorded about their alcohol consumption amount and status (ie, non-drinker vs current drinker), plus age, sex, history of diabetes and smoking status, at least 1 year of follow-up after baseline, and no baseline history of cardiovascular disease. The main analyses focused on current drinkers, whose baseline alcohol consumption was categorised into eight predefined groups according to the amount in grams consumed per week. We assessed alcohol consumption in relation to all-cause mortality, total cardiovascular disease, and several cardiovascular disease subtypes. We corrected HRs for estimated long-term variability in alcohol consumption using 152 640 serial alcohol assessments obtained some years apart (median interval 5·6 years [5th-95th percentile 1·04-13·5]) from 71 011 participants from 37 studies.

Findings: In the 599 912 current drinkers included in the analysis, we recorded 40 310 deaths and 39 018 incident cardiovascular disease events during 5·4 million person-years of follow-up. For all-cause mortality, we recorded a positive and curvilinear association with the level of alcohol consumption, with the minimum mortality risk around or below 100 g per week. Alcohol consumption was roughly linearly associated with a higher risk of stroke (HR per 100 g per week higher consumption 1·14, 95% CI, 1·10-1·17), coronary disease excluding myocardial infarction (1·06, 1·00-1·11), heart failure (1·09, 1·03-1·15), fatal hypertensive disease (1·24, 1·15-1·33); and fatal aortic aneurysm (1·15, 1·03-1·28). By contrast, increased alcohol consumption was log-linearly associated with a lower risk of myocardial infarction (HR 0·94, 0·91-0·97). In comparison to those who reported drinking >0-≤100 g per week, those who reported drinking >100-≤200 g per week, >200-≤350 g per week, or >350 g per week had lower life expectancy at age 40 years of approximately 6 months, 1-2 years, or 4-5 years, respectively.

Interpretation: In current drinkers of alcohol in high-income countries, the threshold for lowest risk of all-cause mortality was about 100 g/week. For cardiovascular disease subtypes other than myocardial infarction, there were no clear risk thresholds below which lower alcohol consumption stopped being associated with lower disease risk. These data support limits for alcohol consumption that are lower than those recommended in most current guidelines.

Funding: UK Medical Research Council, British Heart Foundation, National Institute for Health Research, European Union Framework 7, and European Research Council.

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Figures

Figure 1
Figure 1
Associations of usual alcohol consumption with all-cause mortality and the aggregate of cardiovascular disease in current drinkers Cardiovascular disease was defined as an aggregate of myocardial infarction, coronary heart disease, and stroke. Hazard ratios are adjusted for age, smoking, and history of diabetes, and stratified by sex and EPIC centre. The reference category is the lowest baseline alcohol consumption category (between 0 and 25 g/week). HRs are plotted against the mean usual alcohol consumption in each category. Sizes of the boxes are proportional to the inverse of the variance of the log-transformed hazard ratios. Vertical lines represent 95% CIs.
Figure 2
Figure 2
Associations of usual alcohol consumption with cardiovascular subtypes in alcohol drinkers Hazard ratios are adjusted for age, smoking, and history of diabetes, and stratified by sex and EPIC centre. The reference category is the lowest baseline alcohol consumption category (between 0 and 25g/week). Hazard ratios are plotted against the mean usual alcohol consumption in each category. Studies with fewer than five events of any outcome were excluded from the analysis of that outcome. Sizes of the boxes are proportional to the inverse of the variance of the log-transformed hazard ratios. Vertical lines represent 95% CIs. Deaths from other cardiovascular disease include the following outcomes: cardiac dysrhythmia, hypertensive disease, sudden death, and aortic aneurysm.
Figure 3
Figure 3
Hazard ratios for subtypes of cardiovascular outcomes in current drinkers, per 100 g per week higher usual alcohol consumption Hazard ratios are adjusted for age, smoking, and history of diabetes, and stratified by sex and centre. Studies with fewer than five events of any outcome were excluded from the analysis of that outcome.
Figure 4
Figure 4
Estimated future years of life lost by extent of reported baseline alcohol consumption compared with those who reported consuming >0–≤100 g per week The estimates of cumulative survival from 40 years of age onwards in the alcohol-drinking groups were calculated by applying hazard ratios (specific to age at risk) for all-cause mortality associated with categorised baseline alcohol consumption to US death rates at the age of 40 years or older. Mean usual levels of alcohol consumption within each baseline alcohol consumption category were 56, 123, 208 and 367 g per week, respectively, for the groups >0–≤100 g per week, >100–≤200 g per week, >200–≤350 g per week, and >350 g per week.

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