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Joint Effect of Alcohol Consumption and Educational Level on Alcohol-related Medical Events: A Danish Register-based Cohort Study.
Epidemiology. 2017 11; 28(6):872-879
Publication Type
Journal Article
Video-Audio Media
Research Support, Non-U.S. Gov't
Helene Nordahl Christensen
Finn Diderichsen
Ulla Arthur Hvidtfeldt
Theis Lange
Per Kragh Andersen
Merete Osler
Eva Prescott
Anne Tjønneland
Naja Hulvej Rod
Ingelise Andersen
Author Affiliation
From the aSection of Social Medicine, Department of Public Health, University of Copenhagen, Denmark; bAstraZeneca, Nordic Baltic MC, Medical & Regulatory Nordic Baltic, Södertälje, Sweden; cFundacao Oswaldo Cruz, Brazil; dSection of Biostatistics, Department of Public Health, University of Copenhagen, Denmark; eCenter for Statistical Science, Peking University; fResearch Center for Prevention and Health, Rigshospitalet-Glostrup University Hospital, Denmark; gDepartment of Cardiology and the Copenhagen City Heart Study, Bispebjerg University Hospital, Denmark; and hThe Danish Cancer Society Research Centre, Copenhagen Ø, Denmark.
Epidemiology. 2017 11; 28(6):872-879
Publication Type
Journal Article
Video-Audio Media
Research Support, Non-U.S. Gov't
Alcohol drinking - epidemiology
Alcohol-Related Disorders - epidemiology
Central Nervous System Depressants - adverse effects - poisoning
Cohort Studies
Denmark - epidemiology
Educational Status
Ethanol - adverse effects - poisoning
Liver diseases, alcoholic - epidemiology
Mental Disorders - chemically induced - epidemiology
Middle Aged
Pancreatitis, Alcoholic - epidemiology
Poisoning - epidemiology
Risk factors
Alcohol-related mortality is more pronounced in lower than in higher socioeconomic groups in Western countries. Part of the explanation is differences in drinking patterns. However, differences in vulnerability to health consequences of alcohol consumption across socioeconomic groups may also play a role. We investigated the joint effect of alcohol consumption and educational level on the rate of alcohol-related medical events.
We pooled seven prospective cohorts from Denmark that enrolled 74,278 men and women age 30-70 years (study period, 1981 to 2009). We measured alcohol consumption at baseline using self-administrated questionnaires. Information on highest attained education 1 year before study entry and hospital and mortality data on alcohol-related medical events were obtained through linkage to nationwide registries. We performed analyses using the Aalen additive hazards model.
During follow-up (1,085,049 person-years), a total of 1718 alcohol-related events occurred. The joint effect of very high alcohol consumption (>21 [>28] drinks per week in women [men]) and low education on alcohol-related events exceeded the sum of their separate effects. Among men, we observed 289 (95% confidence interval = 123, 457) extra events per 100,000 person-years owing to education-alcohol interaction (P
PubMed ID
28731961 View in PubMed
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