Table 2.

Percent of Infants Discharged Before the RSV Season Who Are Predicted to Be Rehospitalized for RSV, Kaiser Permanente Medical Care Program (Northern California), 1992–1996

Gestational AgeLength of Oxygen Therapy in NICUMonth of NICU Discharge
December–
August
September–
November
23–32 wk<28 d3.1% (1.8–5.5) 8.0% (4.6–13.6)
≥28 d10.7% (6.3–17.6)24.6% (15.4–37.0)
33–36 wk<28 d1.2% (0.7–2.0)3.2% (2.0–5.2)
≥28 d4.4% (1.9–9.6)11.0% (5.0–22.5)
  • * Probabilities of rehospitalization shown are adjusted means based on the results of a logistic regression model. The RSV season is considered to extend from December 1 to March 31.

  • in parentheses reflect Figures 95% confidence intervals.