title: Adverse perinatal outcome and maternal risk factors in population versus customized defined SGA babies.
abstract: OBJECTIVE
  The purpose of this study was to compare population and customized-based birth weight centiles in their association with perinatal outcome and maternal risk factors, in nulliparous Caucasian women in a socio-economic disadvantaged region.
  
  
  METHODS
  We analyzed perinatal outcomes in births of 302 Caucasian women of which 155 were small for gestational age (SGA) and 147 were appropriate for gestational age (AGA). Out of the overall study group, two cohort studies were designed. One was classified by population centiles as either SGA (n= 133) or AGA (n = 169) and the other was classified by customized centiles as either SGA (n = 131) or AGA (n = 172). Maternal risk factors and operative delivery rates for fetal distress, Apgar scores, need for resuscitation and neonatal nursery care given, were determined for both customized and population-based SGA babies.
  
  
  RESULTS
  The customized SGA only group showed more mental health problems and special nursery in comparison with the AGA group. The population SGA only group had more smoking and mental health problems than the AGA group, but no differences on neonatal outcome measures.
  
  
  CONCLUSIONS
  Use of customized centiles does identify an additional group neonates with a significantly higher need for special nursery admission in a homogeneous ethnic Caucasian group.
authors.affiliation: Department of Obstetrics and Gynaecology, University of Adelaide , Adelaide, South Australia. evavaneerd@gmail.com
authors.forename: Eva Anne Marije
authors.initials: EA
authors.lastname: van Eerd
authors.forename: Alphonse Joseph M
authors.initials: AJ
authors.lastname: Roex
authors.forename: Payam
authors.initials: P
authors.lastname: Nikpoor
authors.forename: Gustaaf A
authors.initials: GA
authors.lastname: Dekker
mesh_terms: D000293:Adolescent; D000328:Adult; D016022:Case-Control Studies; D015331:Cohort Studies; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000453:epidemiology* / Q000208:ethnology / Q000209:etiology; D007236:Infant, Small for Gestational Age / Q000502:physiology; D007744:Obstetric Labor Complications / Q000453:epidemiology* / Q000208:ethnology / Q000209:etiology; D011153:Population; D011247:Pregnancy; D011256:Pregnancy Outcome / Q000453:epidemiology* / Q000208:ethnology; D012307:Risk Factors; D044465:White People; D055815:Young Adult