Time to regain birth weight and its predictors among preterm neonates admitted at neonatal intensive care unit in Amhara Regional State Comprehensive Specialized Hospitals, Ethiopia: retrospective follow up study.

Background: Newborns often lose 7-10% of their birth weight during the first week of life; however, term babies typically regain this weight in 7-10 days, whereas preterm babies typically do so in 10-15 days. Regaining birth weight is an essential developmental milestone and significantly influences their overall health outcomes. Research from the past has concentrated more on the degree of birth weight growth than its causes.