Development of Preterm Infants Born During the COVID-19 Pandemic

You may be eligible if

• Preterm babies (\<34 weeks of gestation) born between March 2020 and December 2021 for case group).
• Preterm babies (\<34 weeks of gestation) born between January 2023 to December 2024 (control group).
• Babies who were admitted to the NICU of the Hospital de Sant Pau.
• Babies who were followed up in External Consultations of the same hospital at least until their first year of age.
• Concurrent diagnosis of genetic pathology or major malformations.
• Families who discontinued follow-up or did not attend scheduled appointments.