This version was machine-translated from German and has not been medically reviewed. The authoritative version is the German version.
NICHD Extremely Preterm Birth Outcome Tool (22–25 weeks)
Survival probability of actively treated and of all extremely preterm infants from gestational age, birth weight, sex, multiple-birth status and steroids (Rysavy 2020) – with neurodevelopmental data
Calculation aid for healthcare professionals: the calculator reproduces what the sources cited assign to the inputs. Clinical assessment and every treatment decision remain with the treating physician. Inputs and results are not stored.
Frequently asked questions
NICHD Extremely Preterm Birth Outcome Tool (22–25 weeks): What does this calculator compute?
Replication of the NICHD calculator (updated Neonatal Research Network model, Rysavy 2020): survival to discharge for actively treated infants and for all infants at 22–25 weeks and 401–1 000 g from birth weight, gestational age, sex, singleton/multiple birth and antenatal steroids, with range between centers (P10–P90) and the follow-up data on neurodevelopment at 18–26 months.
NICHD Extremely Preterm Birth Outcome Tool (22–25 weeks): Which sources is this calculator based on?
Rysavy MA, Horbar JD, Bell EF, et al.; NICHD Neonatal Research Network and Vermont Oxford Network: Assessment of an updated Neonatal Research Network extremely preterm birth outcome model in the Vermont Oxford Network (JAMA Pediatr 174:e196294) (2020); Eunice Kennedy Shriver National Institute of Child Health and Human Development: Extremely Preterm Birth Outcomes Tool – calculator and “About the Data” (2020)