
Publications &
Briefs
Explore scientific publications related to IMPROVE PRETERM and discover how our research is contributing to a better understanding of very preterm birth and lifelong health.
As the project progresses, we will also share evidence and policy briefs that translate scientific findings into accessible, practical information for healthcare professionals, researchers, families, and policymakers. Our goal is to make research findings available and useful – helping to improve care and long-term outcomes for children and adults born very preterm.
Respiratory Infection Hospitalization After Preterm Birth (2026)
Respiratory Infection Hospitalization After Preterm Birth

Children born preterm face a higher risk of hospitalization for respiratory infections, even beyond infancy. A nationwide Norwegian study involving more than 265,000 children aged 1 to 5 examined how hospitalization rates changed before, during, and after COVID-19 control measures. Rates fell significantly while these measures were in place but rose again as restrictions eased. The largest changes occurred among children born at earlier gestational ages, although children born late preterm (34-36 weeks) also faced substantially higher risks than those born at term.
Published in BMJ Paediatrics Open in September 2026, this IMPROVE PRETERM-supported study highlights the importance of preventing severe respiratory infections throughout early childhood. Its findings are particularly relevant to the project’s research on vaccination strategies, helping researchers better understand which groups of children may benefit most from targeted prevention measures.
