title: Trends in neonatology and pediatrics publications over the past 12 years.
abstract: OBJECTIVE
  To test the hypothesis that the number of publications in Neonatology and Pediatrics increases over time, and to verify whether the categories of publications all follow the same pattern over time.
  
  
  METHODS
  We evaluated all Medline articles during 1994-2005. Search was limited to humans, English and to 'newborn' or 'all-child'. We used regression analysis to determine the effect of year-of-publication upon the number-of-publications of each type.
  
  
  RESULTS
  Medline reported 36,141 publications in Neonatology and 169,823 in Pediatrics during the evaluation period. There was a significant linear increase in the number of publications in Neonatology and Pediatrics. There was a steady increase over time in Neonatology and in Pediatrics in meta-analyses, reviews and editorials. There was a steady decrease over time in letters in Neonatology, but no significant change in letters in Pediatrics. While there was no significant change in clinical trials (CTs), randomized control trials (RCTs) in Neonatology, there was a significant increase in CTs and RCTs in Pediatrics.
  
  
  CONCLUSIONS
  The field of neonatology has not had a significant yearly increase of original studies, but has seen an increase of reviews, meta-analyses and editorials. This contrasts with Pediatrics, which shows a similar increase in reviews, meta-analyses and editorials, but also an increase in the number of CTs and RCTs and guidelines.
authors.affiliation: Department of Neonatology, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
authors.forename: Amir Ben
authors.initials: AB
authors.lastname: Tov
authors.forename: Ronit
authors.initials: R
authors.lastname: Lubetzky
authors.forename: Francis B
authors.initials: FB
authors.lastname: Mimouni
authors.forename: Arik
authors.initials: A
authors.lastname: Alper
authors.forename: Dror
authors.initials: D
authors.lastname: Mandel
mesh_terms: D015706:Bibliometrics; D035843:Biomedical Research / Q000639:trends*; D006801:Humans; D016239:MEDLINE; D015201:Meta-Analysis as Topic; D009359:Neonatology; D010372:Pediatrics; D011643:Publishing / Q000639:trends*; D016032:Randomized Controlled Trials as Topic; D012196:Review Literature as Topic