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.
Analysis of the proportion of patients who continued receiving their randomized treatment in (A) GOLD group A; (B) GOLD group B; (C) GOLD group C; (D) GOLD group D.
Note: Figures in parentheses represent 95% CIs.
Abbreviations: FP/SAL, fluticasone propionate/salmeterol; GOLD, Global initiative for chronic Obstructive Lung Disease 2011 criteria; TIO, tiotropium.
