TABLE 1.

Risk Factors for Severe RSV Disease Among Navajo and Apache Children Younger Than 2 Years Hospitalized for RSV Infection, 1997 to 2000

Risk FactorSevere DiseaseCrude OR (95% CI)Adjusted OR (95% CI)
YesNo
All infants45831ReferenceReference
Age <6 mo373376.8 (3.1–17.0)6.6 (3.0–14.4)
Prematurity5581.7 (0.5–4.5)1.8 (0.7–5.1)
Underlying condition*1620.3 (0.0–1.7)0.5 (0.1–3.5)
Male gender254181.2 (0.6–2.3)1.2 (0.6–2.2)
  • CI indicates confidence interval.

  • * Underlying condition was defined as having at least 1 of the following: CHD, CLD of prematurity, reactive airway disease, 2 or more previous hospitalizations for respiratory infection, history of mechanical ventilation, or immunodeficiency.