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.
Time (minutes) needed for detecting one patient with a forced expiratory volume in one second <80% of predicted for selected groups of smokers in general practice
| Group | Time for detecting patient (95% CI) |
|---|---|
| All smokers | 23 (21 to 26) |
| Smokers with cough | 16 (14 to 18) |
| Smokers with 2 symptoms (cough, dyspnoea, or wheeze) | 14 (12 to 16) |
| Smokers with 3 symptoms (cough, dyspnoea, and wheeze) | 12 (10 to 14) |
