Neonatal Morbidity and Mortality Analysis in Newborns With Birth Weight Between 500 to 1500 grams in Two Institutions of CABA Introduction: Preterm birth is the leading cause of infant mortality in developed and developing countries. Different populations may present different factors for prematurity and its consequences. Social vulnerability could explain differences in the causes. To identify risk factors for these preterm deliveries is essential to develop strategies for prevention. Objective: To describe and compare different causes and consequences of preterm birth of mother from different health care systems, to analyze risk factors, and to identify and evaluate maternal conditions associated with neonatal morbidity and mortality Methodology: Study descriptive. Mothers and their newborn infants with birth weight 500 -1500 g born in a public institution of the City of Buenos Aires (Sardá Maternity Hospital) and in a private Hospital (Suiza-Argentina Clinic) were included in the study. Birth weight, gestational age, neonatal morbidities, length of hospital stay, maternal age, number of pregnancy controls maternal pathologies, antenatal steroids and multiple pregnancy were recorded. Results.174 medical records from Sardá Maternity and 185 from Suiza Clinic were studied. Maternal populations showed significant differences. Sardá mothers had higher percentage of teenage pregnancy, less prenatal care, use of steroids, years of schooling and their predominant pathologies were PRM DBT and chorioamnionitis. Mothers of the Suiza-Argentina Clinic showed older age , greater number of pregnancy controls and better use of antenatal steroids , whereas gestational hypertension and multiple pregnancies with more than two infants were also more frequent in this population. Newborns from the public system had lower gestational age and higher rate of morbidities. Significant differences in ROP, IVH and late onset sepsis were found as well as an increased combined morbidity probability.
Conclusion:The study of two population using different health systems allow us to compare the problems of each, describing differences and similarities in mothers and their newborns.