From: Development of a tool to recognize small airways dysfunction in asthma (SADT)
 | Lowest FEF50%tertile | Highest FEF50%tertile | ||
---|---|---|---|---|
(n= 398) | (N= 491) | |||
Age (years) | 54 | (12) | 48 | (13) |
Gender (%female) | 72 | Â | 62 | Â |
BMI (kg/m2) | 28 | (5) | 29 | (6) |
Smoking (%current/ex/never ) | 26/37/37 | Â | 15/42/43 | Â |
ICS (%yes) | 53 | Â | 50 | Â |
FEV1 (%predicted) | 89 | (9.8) | 109 | (12) |
FEV1/FVC (%) | 70 | (5.7) | 83 | (4.3) |
FEF50% (%predicted) | 51 | (9.9) | 104 | (17) |
ACQ total score | 1.3 | (0.9) | 1.2 | (0.9) |