Table 1 Characteristics of the study participants (n = 2349)
Characteristics | Asthma (n = 824) | Non-asthma (n = 1525) | P value |
|---|---|---|---|
Age (years)* | 46 (36–53) | 47 (35–55) | 0.494 |
Height (cm)* | 159 (153–165) | 159 (153–165) | 0.695 |
Weight (kg)* | 59 (52–66) | 59 (53–67) | 0.983 |
BMI (kg/m2)* | 23.38 (21.23–25.71) | 23.5 (21.21–25.87) | 0.250 |
WBC count (× 109/l)* | 7.24 (6.06–8.83) | 7.05 (5.86–8.68) |  < 0.001 |
%Neu (%)* | 59.30 (52.50–65.70) | 61.90 (55.20–68.90) |  < 0.001 |
B-Eos count (cells/μl)* | 306 (148–542) | 125 (66–238) |  < 0.001 |
%B-Eos (%)* | 4.50 (2.10–7.40) | 1.80 (1.00–3.30) |  < 0.001 |
FeNO (ppb)* | 52 (25–87) | 25 (17–35) |  < 0.001 |
FVC (predicted %)* | 94.40 (83.40–104.38) | 96.20 (86.60–106.90) | 0.001 |
FEV1 (predicted %)* | 79.65 (62.95–91.10) | 92.40 (80.55–103.50) |  < 0.001 |
FEV1/FVC (%)* | 68.54 (60.4–77.35) | 80.24 (73.06–84.89) |  < 0.001 |
Sex‡ |  |  | 0.679 |
 Female | 514 (62.4%) | 938 (61.5%) |  |
 Male | 310 (37.6%) | 587 (38.5%) |  |
Objective test type‡ |  |  | 0.057 |
 BPT | 520 (63.1%) | 1022 (67.0%) |  |
 BDT | 304 (36.9%) | 503 (33.0%) |  |