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.
AC Visits and Asthma Symptom Reduction: Bars and annotated numbers represent the mean change in maximum symptom days over 12 months. Error bars represent standard error. N represents the number of participants with a 12-month symptoms outcome via phone for the corresponding number of in person AC visit(s). Test for trend p-value is annotated on the plot.
