Table 2.
Patient's characteristics
| Asthma (n = 23) | Controls (n = 23) | Statistics1 | |
|---|---|---|---|
| Age (years) a | 50.0 [30.0 - 56.0] | 46 [28.0 - 51.0] | 0.534 |
| Height (meter) a | 1.65 [1.62 - 1.75] | 1.68 [1.62 - 1.75] | 0.767 |
| Weight (kg) a | 73.0 [63.0 - 84.0] | 70.0 [61.0 - 75.0] | 0.347 |
| BMI (kg/m2) a | 26.5 [22.5 - 27.7] | 23.4 [21.7 - 26.1] | 0.173 |
| Male b | 12 (52.2) | 7 (30.4) | 0.134 |
| Smoking b | 1.0 | ||
| Ex-smoker | 4 (17.4) | 4 (17.4) | |
| Smoker | 6 (26.1) | 6 (26.1) | |
| Non-smoker | 13 (56.5) | 13 (56.5) | |
| TLC (obs/pred) a,c | 106.4 [100.6 - 116.0] | 108.6 [100.2 - 112.6] | 0.859 |
| SVC (obs/pred) a,c | 90.5 [81.0 - 95.4] | 106.6 [100.4 - 119.2] | < 0.001 |
| FEV1 (obs/pred) a,c | 56.5 [50.3 - 73.7] | 107.1 [100.8 - 115.6] | < 0.001 |
| FEV1/SVC (obs/pred) a,c | 69.4 [57.2 - 77.9] | 102.8 [96.7 - 105.9] | < 0.001 |
| MMEF (obs/pred) a,c | 23.4 [14.5 - 38.5] | 95.7 [79.2 - 107.6] | < 0.001 |
| TLCO (obs/pred) a,c | 78.5 [68.5 - 94.0] | 90.0 [81.0 - 103.5] | 0.102 |
| Total expired volume (L) a | 204 [200 - 250] | 205 [200 - 225] | 0.6292 |
| Total volume of EBC (mL) a | 4.00 [3.50 - 5.00] | 4.00 [3.75 - 4.50] | 0.7872 |
| Time (min) a | 20 [16 - 25] | 20 [18 - 24] | 0.9112 |
BMI: body mass index, TLC: total lung capacity, SVC: slow vital capacity, FEV1: forced expiratory volume in 1s, MMEF: Maximum mid-expiratory flow, TLCO: carbon monoxide gas transfer
a data expressed as median [IQR]
b data expressed as n (%)
c data expressed as % of predicted values
1 p(Chi-2)
2 ANOVA on the ranks