This retrospective study was conducted on data collected between 1 January 2011 and 31 August 2018 in the neonatal intensive care unit (NICU) of the Health Sciences University Zekai Tahir Burak Women's Health Education and Research Hospital.~Neonates born at GA <32 weeks with birth weight (BW) <1500 g were included in the study.~Data pertaining to the neonates were recorded from medical records for each patient, and their ABO blood type was recorded.~The neonates were grouped by blood type (O, A, B, AB) and also separated into non-O (A, B, AB) and O groups and non-A (O, B, AB) and A groups for comparison of early and late onset sepsis.
To investigate whether there is a relationship between sepsis and blood groups in preterm infants.This retrospective cohort study included preterm neonates born at <32 weeks of gestation with a birth weight <1500 g. Neonates were grouped by blood type (O, A, B, AB) and sepsis were compared among these groups.