Aim Our aim was to investigate the rates of preterm births, live births and stillbirths in Denmark during the first year of the COVID‐19 pandemic. Methods This was a national, cross‐sectional registry‐based study that used the Danish Newborn Quality database, which covers all births in Denmark. The proportions of preterm births were compared between the COVID‐19 pandemic period of 1 March 2020 to 28 February 2021 and the preceding 4‐year pre‐pandemic period. Results We studied 60 323 and 244 481 newborn infants from the pandemic and pre‐pandemic periods, respectively. The proportion of preterm live births and stillbirths declined slightly, from 6.29% during the pre‐pandemic period to 6.02% during the pandemic period. This corresponded to a relative risk (RR) of 0.96, with a 95% confidence interval (CI) of 0.93–0.99 during the pandemic. The RRs for extremely preterm, very preterm and moderately preterm infants were 0.88 (95% CI 0.76–1.02), 0.91 (95% CI 0.82–1.02) and 0.97 (95% CI 0.93–1.01), respectively. Conclusion This comparative study showed a small reduction in just over 4%, from 6.29 to 6.02% in the proportion of all preterm births during the pandemic period, compared with the previous four pandemic‐free years. There were no differences between subcategories of preterm births.

Aim Organisation of care, perinatal and neonatal management of very preterm infants in the Nordic regions were hypothesised to vary significantly. The aim of this observational study was to test this hypothesis. Methods Information on preterm infants in the 21 greater healthcare regions of Denmark, Finland, Iceland, Norway and Sweden was gathered from national registers in 2021. Preterm birth rates, case‐mix, perinatal interventions, neonatal morbidity and survival to hospital discharge in very (<32 weeks) and extremely preterm infants (<28 weeks of gestational age) were compared. Results Out of 287 642 infants born alive, 16 567 (5.8%) were preterm, 2389 (0.83%) very preterm and 800 (0.28%) were extremely preterm. In very preterm infants, exposure to antenatal corticosteroids varied from 85% to 98%, live births occurring at regional centres from 48% to 100%, surfactant treatment from 28% to 69% and use of mechanical ventilation varied from 13% to 77% (p < 0.05 for all comparisons). Significant regional variations within and between countries were also seen in capacity in neonatal care, case‐mix and number of admissions, whereas there were no statistically significant differences in survival or major neonatal morbidities. Conclusion Management of very preterm infants exhibited significant regional variations in the Nordic countries.