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.
Participants’ drinking pattern at baseline (left column) and after a 1-year follow-up (right column). Width of the arrow and box size varies with but is not fully representative of the number of persons. Percentage of persons changing group is given for most but not all changes.
