title: Trends in Physical Medicine and Rehabilitation Publications Over the Past 16 Years.
abstract: To test the hypothesis that the number of publications in the field of physical medicine and rehabilitation (PMR) has increased over the last 16 years in a linear fashion, and to compare the trends in publication between the pediatric and adult literature.
  
  
  
  We evaluated all MEDLINE articles from January 1, 1998, to December 31, 2013, using Medical Subject Headings categories of rehabilitation. An age filter separated adult and pediatric articles. We divided articles into those with a low level of scientific evidence such as letters and editorials, and those with a high level of evidence such as controlled trials and meta-analyses. We used regression analysis to evaluate the effect of the year of publication on the number of publications of each type.
  
  
  
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  MEDLINE reported a total of 98,501 adult publications and 30,895 pediatric publications during the evaluated period. There was a significant linear increase in the total number of publications in adult and pediatric rehabilitation publications with multiplication factors of 3.3 and 2.9, respectively. Importantly, publications with a high level of evidence showed larger multiplication factors compared with those with a low level of evidence (5.5 and 5.1 vs 2.1 and 2.0) for the adult and pediatric literature.
  
  
  
  The number of publications in the PMR field, especially those with a high level of scientific evidence, has increased linearly over the years, reflecting the rapid evolution of both adult and pediatric PMR.
authors.affiliation: Department of Ophthalmology, Rambam Health Care Campus, Haifa, Israel.
authors.forename: Michael
authors.initials: M
authors.lastname: Mimouni
authors.affiliation: Orthopedic Rehabilitation Department, Loewenstein Rehabilitation Hospital, Raanana, Israel.
authors.forename: Keren
authors.initials: K
authors.lastname: Cismariu-Potash
authors.affiliation: Pain Unit, Loewenstein Rehabilitation Hospital, Raanana, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
authors.forename: Motti
authors.initials: M
authors.lastname: Ratmansky
authors.affiliation: Department of Child & Youth Rehabilitation, Loewenstein Rehabilitation Hospital, Raanana, Israel.
authors.forename: Sharon
authors.initials: S
authors.lastname: Shaklai
authors.affiliation: Orthopedic Rehabilitation Department, Loewenstein Rehabilitation Hospital, Raanana, Israel.
authors.forename: Hagay
authors.initials: H
authors.lastname: Amir
authors.affiliation: Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Pediatric Neurology and Developmental Unit, Loewenstein Rehabilitation Hospital, Raanana, Israel. Electronic address: Aviva100@bezeqint.net.
authors.forename: Aviva
authors.initials: A
authors.lastname: Mimouni-Bloch
mesh_terms: D000328:Adult; D015706:Bibliometrics; D002648:Child; D006801:Humans; D010506:Periodicals as Topic / Q000706:statistics & numerical data* / Q000639:trends*; D010810:Physical and Rehabilitation Medicine / Q000706:statistics & numerical data*
keywords: Physical and rehabilitation medicine; Publications; Rehabilitation