Figure 6.
The standardized mean difference (SMD) estimate hospital stay in 2 groups. CI = confidence interval, df = degrees of freedom, M-H = Mantel–Haenszel.
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.