Figure 1. Study Flow and Participant Progression Through Each Trial Stage.
Arm A had no mandatory pretest or posttest counseling, arm B mandated posttest counseling only, arm C was the control group, and arm D mandated pretest counseling only.
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.