Fig. 1.
Patient inclusion/exclusion criteria. Following identification of the final cohort, discharge weights were applied, which roughly correspond to a 5-fold multiplication (given that the NIS is a 20% sample database).
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.