Figure 3. Longitudinal Progression in Hearing Thresholds of Workers Followed up From 2015 to 2019.
Data are shown as means, with whiskers indicating SDs. HL indicates hearing level.
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.