Thyroid function test and thyroid disorders in preterm infants with respiratory support

Background: Preterm birth, defined as delivery before 37 weeks of gestation, is linked to health complications, including thyroid dysfunction. The thyroid gland plays a vital role in growth, metabolism, and neurodevelopment, making its function crucial for preterm neonates, particularly those requiring respiratory support. Objectives: This study aimed to assess the prevalence of thyroid dysfunction in preterm neonates receiving respiratory support and examine the association between respiratory interventions and thyroid hormone alterations. Methods: A cross-sectional observational study was conducted at the Neonatal Intensive Care Unit (NICU) of Baghdad Teaching Hospital, including 110 preterm neonates (