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Microbiological detections in cases and controls
| Cases, n = 52 n (%) | Controls, n = 150 n (%) | P | |
|---|---|---|---|
| Influenza | 0 (0) | 2 (1) | NS |
| Parainfluenza | 1 (2) | 0 (0) | NS |
| Respiratory syncytial virus | 4 (8) | 16 (11) | NS |
| Human picornaviruses (>80% rhinovirus) | 27 (52) | 43 (29) | .002 |
| Any viral detection | 32 (62) | 62 (41) | .011 |
| C pneumoniae | 2 (4) | 6 (4) | NS |
| M pneumoniae | 0 | 0 |
