Table 3 Univariate and multivariate logistic regression for predicting severe RSV-associated bronchiolitis in the training group

Age, months

0.895(0.847–0.946)

0.995(0.894–1.106)

NS

weight at admission

0.742(0.649–0.850)

0.758(0.631–0.910)

0.003

Region

2.010(1.151–3.510)

1.292(0.640–2.610)

NS

preterm birth

2.477(1.091–5.621)

3.802(1.392–10.388)

0.009

cesarean section

1.824(1.061–3.138)

1.665(0.852–3.252)

NS

history of birth asphyxia

6.326(0.695–57.540)

underlying diseases

3.244(0.947–11.113)

2.110(0.480–9.286)

NS

Fever

0.412(0.239–0.711)

0.503(0.242–1.044)

NS

Length of wheezing

1.072(0.962–1.195)

Breath rate

1.160(1.109–1.213)

1.111(1.047–1.179)

0.001

Outpatient use of glucocorticoids

1.682(0.918–3.083)

2.267(1.048–4.9)

0.038

L%

0.984(0.967–1.002)

0.968(0.946–0.991)

0.001

Hb

0.982(0.961–1.002)

0.997(0.968–1.026)

NS

CK

1.001(1.000–1.001)

1.001(1.000–1.002)

NS

CKMB

1.017(1.001–1.033)

0.985(0.962–1.008)

NS

LDH

1.002(1.000–1.004)

1.002(1.000–1.005)

NS

IgE

1.000(0.998–1.001)