An official website of the United States government
Here's how you know
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.
Number of exacerbations per patient between March 15 and April 30 in 2019 and 2020: a) all community and hospitalised managed exacerbations, b) community managed exacerbations only, and c) hospitalised managed exacerbations only. Data are presented as mean with 95% confidence interval.