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.
Number of quarterly screens at baseline and 1-year follow-up, from clinic with most screens at follow-up to least. Note: clinics 19 and 25 reported conducting 2 screens at follow-up, but they are difficult to see on the Figure due to inclusion of Clinic 15, which conducted 1125 screens. Clinic ID numbers are consistent with Figure 2.
