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.
HR and 95 % CI of PM2.5 and its constituents to all-cause mortality in two different models. The red represents the marginal structure Cox model, which is weighted based on the ordinary Cox model using GPS obtained by GEE (Model 3). And the blue represents the time-dependent Cox model (Model 2).
