Table 1 Demographics
SGS patients (n = 50) | Asthma patients (n = 32) p-values | |
|---|---|---|
Female (n, %) | 39 (78.0%) | 21 (65.6%) p = 0.349 |
Age at spirometry test date in years (median, IQR) | 48.0 (38.5–60.3) | 51.0 (39.5–66.5) p = 0.655 |
BMI at spirometry test date (median, IQR) | 26.1 (23.9–28.8) | 26.7 (22.7–30.9) p = 0.766 |
Stenosis etiology (n, %) | ||
Idiopathic | 27 (54.0%) | |
GPA | 13 (26.0%) | |
Amyloidosis | 1 (2.0%) | |
Sarcoidosis | 1 (2.0%) | |
Post-intubation | 3 (6.0%) | |
Post-tracheotomy | 4 (8.0%) | |
Post traumatic | 1 (2.0%) | |
Asthma etiology (n, %) | ||
Allergic | 11 (34.4%) | |
Non-allergic | 17 (53.1%) | |
Allergic bronchopulmonary aspergillosis | 4 (12.5%) | |
Spirometry variables (median, IQR) - %pred. value (median %) | ||
FEV1 in liters | 2.57 (2.06–3.14) – 86.0% | 2.22 (1.78–3.09) – 83.0% p = 0.61 |
PEFR in liters/second | 3.81 (3.15–5.20) – 60.6% | 6.04(4.43–8.22) – 91.5% p = 0.00* |
FVC in liters | 3.83 (3.23–4.37) – 101.5% | 3.31 (2.61–4.09) – 95.5% p = 0.06 |
VC in liters | 3.33 (2.83–3.96) – 102.0% | 3.88 (3.31–4.37) – 97.0% p = 0.14 |