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.
(A) Agreement between hsT T levels (ng/L) measured 1 month apart (absolute change). Dotted and solid lines indicate median difference and 2SD (95%). (B) Percentage change in hsT T levels between the two measurements 1 month apart. Dotted and solid lines indicate median percentage change and 2SD (95%).
