Table E2.
Viral pathogens and severity of initial bronchiolitis event by prenatal ASM exposure
| Characteristics of initial bronchiolitis event | ASM Exposed (n = 144) | ASM Unexposed (n = 756) | P value |
|---|---|---|---|
| Viral pathogen∗ | |||
| HRV | 31 (22) | 152 (20) | .70 |
| RSV A | 86 (60) | 445 (59) | .85 |
| RSV B | 29 (20) | 180 (24) | .34 |
| Human metapneumovirus | 7 (5) | 40 (5) | .83 |
| Coronavirus | 5 (6) | 48 (6) | .72 |
| Adenovirus | 5 (3) | 37 (5) | .46 |
| Mycoplasma | 2 (1) | 9 (1) | .84 |
| Influenza A | 2 (1) | 6 (1) | .49 |
| Influenza B | 2 (1) | 3 (0.4) | .14 |
| Parainfluenza 1 | 0 | 4 (1) | .38 |
| Parainfluenza 2 | 0 | 2 (0.2) | .54 |
| Parainfluenza 3 | 3 (2) | 16 (2) | .98 |
| ICU Admission | .98 | ||
| Yes | 21 (15) | 111 (15) | |
| No | 123 (85) | 645 (85) | |
| Intubation | .33 | ||
| Yes | 3 (2) | 28 (4) | |
| No | 141 (98) | 728 (96) |
HRV, Human rhinovirus; ICU, intensive care unit; RSV, respiratory syncytial virus.
∗
Children could have no virus detected, 1 virus detected, or multiple viruses detected.