title: Apgar Score at 5 Minutes Is Associated with Mortality in Extremely Preterm Infants Even after Transfer to an All Referral NICU.
abstract: OBJECTIVE
  The Apgar score has been shown to have utility in predicting mortality in the extremely preterm infant in delivery hospital populations, where most mortality occurs within 12 hours of birth. We tested the hypothesis that the 5 minute Apgar score would remain associated with mortality in extremely preterm infants after transfer from the delivery hospital to an all referral neonatal intensive care unit at an average age of 10 days.
  
  
  METHODS
  A retrospective analysis of 454 infants born at < 27 weeks gestation.
  
  
  RESULTS
  The median Apgar score was 3 at 1 minute (interquartile range [IQR] 2-6) and 6 at 5 minutes (IQR 4-7). The Apgar score increased from 1 to 5 minutes by 2.0 ± 1.7 (p < 0.001). In logistic regression modeling, an Apgar score of < 5 at 5 minutes was associated with an increased mortality (odds ratio 1.76 [95% confidence interval 1.06-2.94], p < 0.05), but not morbidities.
  
  
  CONCLUSIONS
  Infants born at < 27 weeks gestation admitted to an all referral children's hospital at a mean age of 10 days with a 5 minute Apgar < 5 are at an increased risk of mortality. Our findings continue to support the importance of the Apgar score given at delivery even in the extremely preterm infant referred to a nondelivery children's hospital.
authors.affiliation: Division of Neonatology, Department of Pediatrics, The Ohio State University, Columbus, Ohio.
authors.forename: Thomas
authors.initials: T
authors.lastname: Bartman
authors.affiliation: Division of Neonatology, Department of Pediatrics, The Ohio State University, Columbus, Ohio.
authors.forename: Roopali
authors.initials: R
authors.lastname: Bapat
authors.affiliation: Small Baby Program, Nationwide Children's Hospital, Columbus, Ohio.
authors.forename: Elizabeth M
authors.initials: EM
authors.lastname: Martin
authors.affiliation: Division of Neonatology, Department of Pediatrics, The Ohio State University, Columbus, Ohio.
authors.forename: Edward G
authors.initials: EG
authors.lastname: Shepherd
authors.affiliation: Division of Neonatology, Department of Pediatrics, The Ohio State University, Columbus, Ohio.
authors.forename: Leif D
authors.initials: LD
authors.lastname: Nelin
authors.affiliation: Division of Neonatology, Department of Pediatrics, The Ohio State University, Columbus, Ohio.
authors.forename: Kristina M
authors.initials: KM
authors.lastname: Reber
mesh_terms: D001034:Apgar Score; D002552:Cerebral Ventricles; D015331:Cohort Studies; D004374:Ductus Arteriosus, Patent / Q000453:epidemiology; D020345:Enterocolitis, Necrotizing / Q000453:epidemiology; D005260:Female; D006776:Hospitals, Pediatric; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D052577:Infant, Extremely Low Birth Weight; D062071:Infant, Extremely Premature; D007231:Infant, Newborn; D007363:Intensive Care Units, Neonatal; D020300:Intracranial Hemorrhages / Q000453:epidemiology; D016015:Logistic Models; D008297:Male; D016017:Odds Ratio; D010360:Patient Transfer; D011379:Prognosis; D012017:Referral and Consultation; D012189:Retrospective Studies