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.
Mean costs were $4681 (interquartile range, $1502-$5913) for betamethasone and $5379 (interquartile range, $1443-$7153) for placebo. Diamonds indicate means; error bars, extreme data points within 1 times the interquartile range.
