Population based external validation of a European predictive model for respiratory syncytial virus hospitalization of premature infants born 33 to 35 weeks of gestational age.

Prospectively collected population-based data on 2529 Danish infants born at 33 to 35 weeks of gestation were used to validate an European predictive model of respiratory syncytial virus (RSV) hospitalization. The model was found to be robust with a diagnostic accuracy of 65.9% to distinguish between RSV-hospitalized versus non-RSV-hospitalized Danish infants born at 33 to 35 weeks of gestation.