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Association Between Changes in Alcohol Consumption and Cancer Risk
Jung Eun Yoo1, Kyungdo Han2, Dong Wook Shin3,4,5
1Department of Family Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea.
JAMA Network Open
|August 24, 2022
Summary
Increasing alcohol consumption elevates cancer risk, while quitting or reducing intake lowers it. These findings highlight the importance of alcohol cessation and reduction for cancer prevention.
Area of Science:
- Epidemiology
- Oncology
- Public Health
Background:
- Alcohol consumption is linked to various cancers, but the impact of changes in drinking habits on cancer incidence remains unclear.
- Understanding how modifications in alcohol intake affect cancer risk is crucial for public health strategies.
Purpose of the Study:
- To investigate the association between changes in alcohol consumption (reduction, cessation, increase) and the risk of developing alcohol-related and all cancers.
- To quantify the dose-response relationship between alcohol intake changes and cancer incidence.
Main Methods:
- A population-based cohort study involving over 4.5 million Korean adults (≥40 years) who underwent health screenings in 2009 and 2011.
- Alcohol consumption was categorized (none, mild, moderate, heavy) and changes tracked over two years.
- Cancer incidence (alcohol-related and all cancers) was monitored over a median follow-up of 6.4 years.
Main Results:
- Increased alcohol consumption was associated with a higher risk of both alcohol-related and all cancers.
- Reducing alcohol intake from heavy to moderate or mild levels decreased cancer risk.
- Quitting alcohol consumption was linked to lower alcohol-related cancer risk, though initial cessation from moderate/heavy drinking showed a temporary increase in all-cancer incidence.
Conclusions:
- Changes in alcohol consumption significantly impact cancer risk.
- Alcohol cessation and reduction are effective strategies for lowering the incidence of alcohol-related and all cancers.
- Public health initiatives should promote alcohol reduction and cessation to prevent cancer.
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