Table 4.
Characteristics of the acute asthma exacerbation and viral isolates for acute asthma with viral persistence and acute asthma with viral clearance
| Viral persistence | Viral clearance | P‐value | |
|---|---|---|---|
| Acute asthma, virus positive Visit 1, positive Visit 2 | Acute asthma, virus positive Visit 1, negative Visit 2 | ||
| FEV1 at Visit 1 (L) | 1.5 (1.21, 1.87) | 1.39 (1.08, 1.61) | 0.150 |
| FEV1% predicted at Visit 1 | 64 (59, 71) | 60 (47, 67) | 0.158 |
| %Change in FEV1 at Visit 2 | 35.5 (22.8, 53.2) | 41.1 (17.6, 53.8) | 0.536 |
| ACQ (max = 7) at Visit 1 | 2.1 (0.9, 4.0) | 2.8 (2.0, 3.4) | 0.503 |
| %Change in ACQ at Visit 2 | −57.7 (−69.4, −3.6) | −70.8 (−82.6, −21.7) | 0.389 |
| CCS (max = 30) at Visit 1 | 7.0 (6.0, 13.0) | 9 (4, 17) | 0.757 |
| %Change in CCS at Visit 2 | −81.6 (−96.7, −38.1) | −62.3 (−90.0, −33.8) | 0.689 |
| Length of hospital stay (days) | 2.0 (1.8, 3.5) | 2.5 (1.0, 3.8) | 0.769 |
| Virus type, n (%) | |||
| Rhinovirus | 12 (70.5) | 17 (77.3) | |
| Enterovirus | 6 (35.3) | 10 (45.5) | |
| Influenza A | 2 (11.8) | 2 (9.1) | |
| Influenza B | 0 | 1 (4.5) | |
| RSV | 1 (5.9) | 0 |
Results are median (IQR), Wilcoxon rank sum test or n (%).
ACQ, Asthma Control Questionnaire; CCS, Common Cold Score.