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.
The forest plots represent A) all age groups, B) Children (0–19 years old) and C) Adults (>19 years old). N/A represents the period of study missing.
