And that’s probably an underestimate: Alcohol sales figures suggest people are buying a lot more alcohol than they say they are consuming. Health officials estimate that about half of the beer, wine, and liquor consumed in the United States by adults each year is downed during binge drinking.
“I know this sounds astounding, but I think the numbers we’re reporting are really an underestimate,’’ said Dr. Robert Brewer, who leads the alcohol program at the Centers for Disease Control and Prevention.
The CDC report is based on telephone surveys last year of more than 450,000 adults. They were asked about their alcohol drinking in the past month, including the largest number of drinks they had at one time.
Binge drinking is generally defined as four drinks for women and five for men in a period of a few hours. Binge drinkers ages 18 to 24 reported nine drinks, or one more than the national average of eight drinks.
But those numbers are probably averages for all episodes of binge drinking, Brewer said, citing other studies.