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-standardized and gender–standardized rates of primary and secondary outcomes for the pre-intervention, intervention roll-out, and post-intervention periods. Trend lines from the segmented linear regression models for the pre-intervention and post-intervention periods are depicted.
