title: New intrauterine growth percentiles: a hospital-based study in Istanbul, Turkey.
abstract: OBJECTIVE
  To develop gender and gestation-specific growth percentiles for singleton live-born neonates and to compare new weight for age unisex percentiles with Lubchenco unisex percentiles.
  
  
  METHODS
  Cross-sectional birth data were collected from the neonatal registry from January 2000 to April 2006 (n = 15.509). After exclusion, the sample included 15.112 neonates.
  
  
  RESULTS
  Newly developed weight for age, charts were compared with Lubchenco unisex percentiles, 91.8% of the subjects were classified in the same way (Kappa = 0.74, P < 0.001). Small for gestational age (SGA) and large for gestational age (LGA) according to the Lubchenco percentiles differed from the new percentiles (Mc Nemar test, P < 0.001). The percentage of SGA neonates was underestimated by Lubcheno percentile (5.8% vs. 10.6%, respectively), whereas the percentage of LGA neonates was overestimated by Lubcheno percentile (10.3% vs. 9.3%, respectively).
  
  
  CONCLUSIONS
  New growth chart for newborn delivered at different gestational ages have been established, which can be used to define SGA and LGA in Turkish neonates. Studies comparing the Lubchenco percentiles with new percentiles are needed.
authors.affiliation: Department of Neonatology, Sisli Etfal Training and Research Hospital, Istanbul, Turkey. fbozgulsalih@yahoo.com
authors.forename: Ozgul
authors.initials: O
authors.lastname: Salihoglu
authors.forename: Guner
authors.initials: G
authors.lastname: Karatekin
authors.forename: Sinan
authors.initials: S
authors.lastname: Uslu
authors.forename: Emrah
authors.initials: E
authors.lastname: Can
authors.forename: Basak
authors.initials: B
authors.lastname: Baksu
authors.forename: Asiye
authors.initials: A
authors.lastname: Nuhoglu
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001724:Birth Weight; D016009:Chi-Square Distribution; D003430:Cross-Sectional Studies; D005260:Female; D047109:Fetal Development; D005865:Gestational Age; D057238:Growth Charts; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy; D012016:Reference Values; D012042:Registries; D014421:Turkey