Development of Preterm Infants Born During the COVID-19 Pandemic

Inclusion Criteria

• •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.