TABLE 3

Multivariate Logistic Regression Models Predicting Corticosteroid Treatment at Index Visit

CharacteristicFull Model Overall, OR (95% CI)Contracted Models, OR (95% CI)
Age <12 moAge 12–23 moOverall
No. of cases281166115281
Site
    A1ReferenceReferenceReferenceReference
    A21.30 (0.60–2.60)2.30 (1.10–4.80)a1.50 (0.50–4.60)1.80 (1.00–3.30)a
    B11.60 (0.60–4.90)1.10 (0.40–3.10)1.50 (0.20–9.20)1.10 (0.50–2.60)
    B22.00 (0.90–4.40)2.30 (1.10–4.90)a2.60 (0.80–9.20)2.30 (1.20–4.30)a
    C10.40 (0.20–1.00)0.60 (0.20–1.60)0.20 (0.10–0.90)a0.40 (0.20–0.90)a
    C23.00 (1.40–6.40)a5.40 (2.80–10.60)a2.20 (0.60–7.70)4.30 (2.40–7.60)a
    D13.30 (1.50–7.00)a3.60 (1.80–7.30)a1.10 (0.30–4.90)2.70 (1.40–5.00)a
    D20.80 (0.30–2.00)1.10 (0.50–2.60)0.60 (0.20–2.10)0.90 (0.40–1.80)
Age, mo1.10 (1.00–1.10)a1.10 (1.10–1.20)a1.20 (1.10–1.30)a1.10 (1.00–1.10)a
Male1.00 (0.70–1.50)1.00 (0.70–1.50)1.60 (0.80–3.10)1.10 (0.80–1.50)
Race/ethnicity
    WhiteReferenceReferenceReferenceReference
    Nonwhite1.00 (0.70–1.60)1.10 (0.70–1.80)1.20 (0.50–2.60)1.20 (0.80–1.70)
    Not documented1.00 (0.30–3.20)1.10 (0.30–3.70)0.20 (0.01–3.20)0.80 (0.30–2.60)
Insurance provider at index visit
    PrivateReference
    Medicaid1.10 (0.70–1.70)
    Other public2.70 (0.60–13.20)
    None1.50 (0.70–3.20)
Primary ED or hospital diagnosis
    BronchiolitisReferenceReferenceReferenceReference
    RSV1.70 (0.70–4.10)1.50 (0.60–3.80)4.00 (0.90–18.80)1.80 (0.90–3.80)
    Viral pneumonia3.00 (1.00–9.50)3.10 (0.80–12.60)2.40 (0.60–9.80)2.30 (0.90–5.90)
    Asthma6.30 (3.50–11.50)a5.80 (2.70–12.60)a19.40 (7.80–48.10)a10.00 (5.80–17.40)a
    Cough1.00 (0.40–2.30)0.50 (0.20–1.10)0.20 (0.03–2.10)0.50 (0.20–0.97)a
    Wheezing1.00 (0.40–2.00)0.60 (0.20–1.70)1.50 (0.50–4.40)1.00 (0.50–1.90)
History of eczema
    NoReference
    Yes1.50 (0.60–3.70)
    Not documented1.00 (0.50–1.70)
History of wheezing
    NoReference
    Yes2.00 (1.10–3.40)a
    Not documented0.70 (0.40–1.20)
Wheeze during index visit
    NoReference
    Yes2.40 (1.60–3.70)a
    Not documented6.30 (0.50–81.40)
Eosinophil values ≥4%
    NoReference
    Yes0.20 (0.10–0.97)a
    Not documented0.70 (0.50–1.10)
Previous use of corticosteroids (before index visit)
    NoReference
    Yes3.00 (1.60–5.90)a
    Not documented1.10 (0.60–1.90)
Parental history of asthma
    NoReference
    Yes1.90 (1.10–3.30)a
    Not documented0.70 (0.40–1.20)
  • a Statistically significant OR.