Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Age at first drink and maximum drinks in last month/year. Box-whisker plot depicting people who initiated alcohol at an early age developed chronic heavy drinking patterns in later adult life in terms of maximum alcohol drinks consumed last month/year. X marks depict mean values.
