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Neonatal mortality and morbidity in extremely preterm SGA infants: A population based study.
  1. Siw Helen Westby Wold (helenwold{at}
  1. University of Bergen, Norway
    1. Kristian Sommerfelt (kristian.sommerfelt{at}
    1. University of Bergen, Norway
      1. Hallvard Reigstad (hallvard.reigstad{at}
      1. Department of Pediatrics, Haukeland University Hospital, Norway
        1. Arild Rønnestad (arild.ronnestad{at}
        1. Department of Pediatrics, Rikshospitalet University Hospital, Norway
          1. Sverre Medbø (sverre.medbo{at}
          1. Department of Pediatrics, Ullevål University Hospital, Norway
            1. Teresa Farstad (teresa.farstad{at}
            1. Department of Pediatrics, Akershus University Hospital, Norway
              1. Per Ivar Kaaresen (per.ivar.kaaresen{at}
              1. Department of Pediatrics, University Hospital of Northern Norway, Norway
                1. Ragnhild Støen (ragnhild.stoen{at}
                1. Department of Pediatrics, St. Olav University Hospital, Norway
                  1. Katrine Tyborg Leversen (katrine.tyborg.leversen{at}
                  1. University of Bergen, Norway
                    1. Lorentz Irgens (lorentz.irgens{at}
                    1. University of Bergen, Norway
                      1. Trond Markestad (trond.markestad{at}
                      1. Department of Pediatrics, Haukeland University Hospital, Norway


                        Aim: To assess if growth retarded (SGA) extremely preterm infants have excess neonatal mortality and morbidity.

                        Methods: Cohort study of all infants born alive at 22-27 weeks’ gestational age (GA) in Norway during 1999-2000. Outcomes were compared between those who were SGA, defined as a birth weight less than the fifth percentile for GA and those who had weights at or above the fifth percentile.

                        Results: Of 365 infants with GA < 28 weeks, 31 (8%) were SGA. Among infants with GA < 28 weeks, only chronic lung disease was associated with SGA status (OR 2.7, 95% CI 1.0 to 7.2). SGA infants with GA 26-27 weeks had excess neonatal mortality (OR 3.8, 95% CI 1.3 to 11), chronic lung disease and significantly higher mean number of days (age) before tolerating full enteral nutrition. SGA infants with GA 22-25 weeks had an excess risk of necrotizing enterocolitis.

                        Conclusion: Extremely preterm SGA infants had excess neonatal mortality and morbidity in terms of necrotizing enterocolitis and chronic lung disease.

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