TABLE 3

Multivariate model to prediction of likelihood of requiring intubation and invasive ventilation in critically ill infants with bronchiolitis

Odds ratio95% CIβ95% CIp-value
Age (days/30)0.9700.957 to 0.983−0.013−0.044 to −0.017<0.001
Interhospital transport2.7182.415 to 3.0580.4340.882 to 1.118<0.001
Chronic neurological condition1.7231.187 to 2.5020.2360.171 to 0.9170.004
Chronic respiratory condition1.5851.182 to 2.1240.2000.167 to 0.7530.002
Bronchopulmonary dysplasia1.6861.324 to 2.1480.2270.280 to 0.765<0.001
Congenital heart defect1.8751.536 to 2.2890.2730.429 to 0.828<0.001
Prematurity1.3201.147 to 1.5200.1210.137 to 0.419<0.001
RSV1.5611.387 to 1.7570.1930.327 to 0.564<0.001
Influenza/parainfluenzae2.0011.523 to 2.6290.3010.421 to 0.967<0.001
Systolic blood pressure ≤70 mmHg4.0343.160 to 5.1510.6061.151 to 1.639<0.001
Base excess0.9470.929 to 0.967−0.023−0.074 to −0.034<0.001
(Base excess)21.0101.008 to 1.0130.0040.008 to 0.012<0.001
Constant0.0870.063 to 0.121−1.060−2.768 to −2.113<0.001

Data are based on a saturated mix-effects logistic regression model clustering on site and adjusted for all variables shown in the table. RSV: respiratory syncytial virus.