Alcohol use classification chart.
1 Binge drinking is typically ≥4 drinks within 2 hours (females) and ≥5 drinks within 2 hours (males), where the blood alcohol concentration (BAC) level rises to 0.08 g/dL (39). The chart is based on the National Institute on Alcohol Abuse and Alcoholism, and Substance Abuse and Mental Health Services Administration levels of alcohol use definitions (39, 40).