title: Reduced use of diagnostic obstetric ultrasound in Norway. Result of consensus panel recommending routine screening in pregnancy?
abstract: OBJECTIVE
  To investigate the practice of obstetric ultrasound in Norway before and 2 years after a consensus conference recommending routine screening. Material, method: Two national representative materials sampled with a 2-year interval are compared.
  
  
  RESULTS
  The average number of examinations was reduced from 2.46 to 2.2 (p = 0.014). Obstetrical institutions practising screening examined their patient less frequently than non-screening institutions (2.10 vs. 2.75 times, p less than 0.001 whereas in 1986 the converse was the case.
  
  
  CONCLUSIONS
  Screening has become more widespread, and a more rational practice has developed.
authors.affiliation: Norwegian Institute of Hospital Research Trondheim.
authors.forename: B
authors.initials: B
authors.lastname: Backe
authors.forename: P
authors.initials: P
authors.lastname: Nafstad
authors.forename: A R
authors.initials: AR
authors.lastname: Saetnan
mesh_terms: D003245:Consensus Statements as Topic; D005260:Female; D006801:Humans; D009664:Norway; D011247:Pregnancy; D016216:Ultrasonography, Prenatal / Q000706:statistics & numerical data*