Figure 1.
Annual FEV1 loss for a male of 67-inch height in different dust exposure groups, different smoking status, baseline age, and pack-years based on the linear mixed 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.