Four Groups Driving the Surge in Alcohol-Related Liver Disease
Alcohol-related liver disease has more than doubled in the U.S. over the past two decades, and new research points to four key groups driving this alarming trend: women, adults aged 45 and older, individuals living in poverty, and those with metabolic syndrome. Metabolic syndrome involves a cluster of conditions like high blood pressure, blood sugar, and cholesterol, all of which elevate the risk of heart disease, stroke, and type 2 diabetes.
Why the Increase?
While the exact reasons these groups are drinking more heavily remain unclear, experts offer some insights. Dr. Peter Martin of Vanderbilt University School of Medicine suggests that it has "become more and more socially acceptable for women to drink as much as men." George Koob, director of the National Institute on Alcohol Abuse and Alcoholism, believes older Americans may be less aware of alcohol's dangers.
"Alcohol-related liver disease is the main cause of liver-related death, and these results are a major wake-up call to the dangers of drinking," stated Dr. Brian Lee, a hepatologist and liver transplant specialist at Keck Medicine of the University of Southern California, following the study's publication. This research, he noted, provides the first comprehensive look at the demographics of heavy drinking and its link to liver disease since the 1990s. The fact that the average U.S. drinking rate has remained stable (outside of the pandemic) suggests that shifting demographics and health factors are playing a significant role.
Study Insights and Implications
Researchers analyzed data from the National Health and Nutrition Examination Survey, spanning from 1999 to 2020, to track the rise in significant liver disease, a condition where scar tissue impairs liver function, often due to heavy drinking. In 2020 alone, over 51,600 adults in the U.S. died from liver disease.
The study focused on adults aged 20 and older who were heavy drinkers, defined by the CDC as eight or more drinks per week for women and 15 or more for men. Previous research had already linked these four identified groups to a higher risk of liver disease when exposed to alcohol. A separate 2024 study, also authored by Lee, found that heavy drinking spiked at the peak of the pandemic and continued for two years afterward, a trend Lee hypothesized could be due to increased stress.
These findings are critical, especially given that liver disease deaths and annual alcohol-related cancer deaths have both roughly doubled in the last 20 years. Lee believes these results will equip doctors with crucial, updated information to better treat patients and potentially lead to more screenings and interventions for high-risk populations.
"Our results show that the makeup of the American public with heavy alcohol consumption has changed compared to 20 years ago," he concluded.
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