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.
Associations between sputum neutrophil elastase (NE) activity and IL-1β (interleukin-1β) concentrations (log10 transformed) and lung function (ppFEV1) and bronchiectasis. ppFEV1 = forced expiratory volume in 1 second percent predicted; Spr = Spearman’s rank correlation coefficient.
