Figure 2. Relative risks of all-cause mortality for highest versus lowest category of dietary intake of beta-carotene.
Overall relative risk calculated with random effects model.
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.