Infant mortality caused by premature birth is mainly attributed to developmental immaturity, which impacts multiple organ systems in the infant's body. The main body systems affected include the respiratory system, which may result in pulmonary hypoplasia, respiratory distress syndrome, bronchopulmonary dysplasia (a chronic lung disease), and apnea. Other body systems that fully develop at a later gestational age include the gastrointestinal system, the skin, the immune system, the cardiovascular system, and the hematologic system. Poor development of these systems increases the risk of infant mortality.
Infant mortality caused by premature birth is mainly attributed to developmental immaturity which impacts multiple organ systems in the infant's body The main body systems affected include the respiratory system which may result in pulmonary hypoplasia respiratory distress syndrome bronchopulmonary dysplasia (a chronic lung disease) and apnea Other body systems that fully develop at a later gestational age include the gastrointestinal system the skin the immune system the cardiovascular system and the hematologic system Poor development of these systems increases the risk of infant mortality