title: Development and validation of a risk stratification index to predict death in gastroschisis.
abstract: BACKGROUND
  Gastroschisis is a rare congenital anomaly, the improved surgical management of which has contributed to a survival rate greater than 90%. Development of an accurate risk stratification system to help identify the subset of patients at greatest risk for death may lead to further improvements in outcome.
  
  
  METHODS
  Infants with gastroschisis were identified from 16 years of the National Inpatient Sample database and the Kids' Inpatient Database using the International Classification of Diseases, Ninth Revision, Clinical Modification procedure code 54.71 (repair of gastroschisis) and an age of less than 8 days. Logistic regression analysis determined which coexisting diagnoses were significantly associated with death. Odds ratios from the logistic regression model were simplified and used as weighting factors to create an additive index. The index was validated using the 2003 Kids' Inpatient Database data set.
  
  
  RESULTS
  Intestinal atresia, necrotizing enterocolitis, rare cardiac anomalies, and lung hypoplasia were strongly associated with death and used to create a scoring system with a potential range of 0 to 10. Every point increase on the scale of gastroschisis risk stratification index is associated with a 95% relative increase in the likelihood of death.
  
  
  CONCLUSIONS
  We have developed a novel index, which is superior to previous classification systems in identifying patients with gastroschisis who are at highest risk for death.
authors.affiliation: Department of Surgery, Johns Hopkins Medical Institutions, Baltimore, MD 21287, USA.
authors.forename: Meghan A
authors.initials: MA
authors.lastname: Arnold
authors.forename: David C
authors.initials: DC
authors.lastname: Chang
authors.forename: Rosemary
authors.initials: R
authors.lastname: Nabaweesi
authors.forename: Paul M
authors.initials: PM
authors.lastname: Colombani
authors.forename: Anne C
authors.initials: AC
authors.lastname: Fischer
authors.forename: Henry T
authors.initials: HT
authors.lastname: Lau
authors.forename: Fizan
authors.initials: F
authors.lastname: Abdullah
mesh_terms: D000015:Abnormalities, Multiple / Q000401:mortality; D015897:Comorbidity; D016208:Databases, Factual; D020345:Enterocolitis, Necrotizing / Q000401:mortality; D005260:Female; D020139:Gastroschisis / Q000401:mortality*; D006330:Heart Defects, Congenital / Q000401:mortality; D006801:Humans; D007231:Infant, Newborn; D007409:Intestinal Atresia / Q000401:mortality; D008168:Lung / Q000002:abnormalities; D008297:Male; D018579:Patient Selection; D011379:Prognosis; D012189:Retrospective Studies; D018570:Risk Assessment; D012720:Severity of Illness Index; D014481:United States / Q000453:epidemiology