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.
Responsiveness of cough severity VAS change scores by (a) PGIC category at Week 4 and (b) ⩾ 30% vs. < 30% reduction in awake cough frequency at Week 4. Error bars are standard error.
LSM, least-squares mean; PGIC, patient global impression of change; VAS, visual analog scale.
