Table 1.
Demographic Characteristics, Clinical Course, and Virus Detection in the Infants Included With Bronchiolitis (n = 410)
| Demographic characteristics | |
| Gender, n (%) | |
| Male | 237 (57.8%) |
| Females | 173 (42.2%) |
| Age, median (IQR), months | 1.9 (1.1–3.9) |
| Weight at admission, median (IQR), kg | 4.8 (3.9–6.2) |
| Prematurity (gestational age <37 weeks), n (%) | 67 (16.3%) |
| Underlying chronic conditions, n (%) | 34 (8.3%) |
| CHD, n (%)1 | 12 (35.3%) |
| BPD, n (%)1 | 10 (29.4%) |
| Polymalformative syndrome or chromosomopathy,2 n (%)1 | 8 (23.5%) |
| Severe neurologic impairment, n (%)1 | 4 (11.8%) |
| Disease characteristics | |
| Admission | |
| PICU, n (%) | 58 (14.1%) |
| Pediatric ward, n (%) | 352 (85.9%) |
| Length of stay, median (IQR), days | 4.0 (3.0–7.0) |
| Supplemental oxygen, n (%) | 327 (79.8%) |
| Days of oxygen use, median (IQR), days | 3 (1–5) |
| Apnea, n (%) | 24 (5.9%) |
| Fever,3 n (%) | 168 (41%) |
| Radiologic evaluation, n (%) | |
| No performed | 221 (53.9%) |
| No pathologic findings or peribronquial infiltrates without consolidation or atelectasis | 79 (19.3%) |
| Peribronquial infiltrates with mild‐to‐moderate consolidation or atelectasis | 76 (18.5%) |
| Extensive consolidation or atelectasis | 34 (8.3%) |
| BCS at admission, median (IQR), points | 7 (5–9) |
| Highest BCS during the inpatient management, median (IQR), points | 8 (6–10) |
IQR, interquartile range; BPD, bronchopulmonary dysplasia; CHD, congenital heart disease; PICU, pediatric intensive care unit; BCS, bronchiolitis clinical score.
Numbers in parentheses represent the percentage calculated for patients with an underlying chronic illness.
Two patients with Down syndrome (sd), craneofacial malformation with facial and subglotic angioma, polymalformative sd without specific diagnosis (Pierre–Robin sequence, arthrogryposis, trombocytopenia, interventricular defect, ventriculomegaly), CHARGE sd, Branchio‐otic (BO) sd, Rubinstein–Taybi sd, and polymalformative sd without specific diagnosis (anorectal malformation, congenital diaphragmatic hernia, aortic arch hypoplasia).
Temperature ≥38°C at admission or the 48 hr before.
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