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.
Histogram of metformin counts (batch-corrected, log-scaled, relative units) in individuals who self-reported using metformin (blue) and individuals who were unlikely to use metformin (red); Of 571 individuals who are unlikely to take metformin, 431 (75.5%) have no metformin detected in their blood samples, whereas 140 (24.5%) do; of the 220 individuals who self-report using metformin, 203 (92.3%) have metformin detected in their blood and only 17 (7.7%) do not.
