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Newcastle–Ottawa scale

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(Redirected from Newcastle-Ottawa scale) Tool for assessing quality of non-randomized studies

In statistics, the Newcastle–Ottawa scale is a tool used for assessing the quality of non-randomized studies included in a systematic review and/or meta-analyses. Using the tool, each study is judged on eight items, categorized into three groups: the selection of the study groups; the comparability of the groups; and the ascertainment of either the exposure or outcome of interest for case-control or cohort studies respectively. Stars awarded for each quality item serve as a quick visual assessment. Stars are awarded such that the highest quality studies are awarded up to nine stars. The method was developed as a collaboration between the University of Newcastle, Australia, and the University of Ottawa, Canada, using a Delphi process to define variables for data extraction. The scale was then tested on systematic reviews and further refined. Separate tools were developed for cohort and case–control studies. It has also been adapted for prevalence studies.

References

  1. Deeks JJ, Dinnes J, D'Amico R, Sowden AJ, Sakarovitch C, Song F, et al. (2003). "Evaluating non-randomised intervention studies". Health Technology Assessment. 7 (27): iii–x, 1–173. doi:10.3310/hta7270. PMID 14499048.
  2. Rotenstein, Lisa S.; Ramos, Marco A.; Torre, Matthew; Segal, J. Bradley; Peluso, Michael J.; Guille, Constance; Sen, Srijan; Mata, Douglas A. (2016-12-06). "Prevalence of Depression, Depressive Symptoms, and Suicidal Ideation Among Medical Students: A Systematic Review and Meta-Analysis". JAMA. 316 (21): 2214–2236. doi:10.1001/jama.2016.17324. ISSN 1538-3598. PMC 5613659. PMID 27923088.
  3. Douglas A. Mata, Marco A. Ramos, Narinder Bansal, Rida Khan, Constance Guille, Emanuele Di Angelantonio & Srijan Sen (2015). "Prevalence of Depression and Depressive Symptoms Among Resident Physicians: A Systematic Review and Meta-analysis". JAMA. 314 (22): 2373–2383. doi:10.1001/jama.2015.15845. PMC 4866499. PMID 26647259.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  4. Rotenstein, Lisa S.; Torre, Matthew; Ramos, Marco A.; Rosales, Rachael C.; Guille, Constance; Sen, Srijan; Mata, Douglas A. (September 18, 2018). "Prevalence of Burnout Among Physicians: A Systematic Review". JAMA. 320 (11): 1131–1150. doi:10.1001/jama.2018.12777. ISSN 1538-3598. PMC 6233645. PMID 30326495.

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