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Helena Donato Carlos F. de Oliveira HUC

Obstetrics & Gynecology : evaluation of the portuguese scientific activity based on bibliometric indicators. Helena Donato Carlos F. de Oliveira HUC. Reasons to write. “Without publication, science is dead”. Gerard Piel. Reasons to write.

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Helena Donato Carlos F. de Oliveira HUC

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  1. Obstetrics & Gynecology:evaluationoftheportuguesescientificactivitybasedonbibliometricindicators Helena Donato Carlos F. de Oliveira HUC

  2. Reasons to write “Without publication, science is dead” Gerard Piel

  3. Reasons to write • The scientific publication is a key-step in every investigation project • It represents the step where results are submitted to the public scrutiny

  4. Reasons to write • In Medicine and independently from the outstanding results obtained, the task won’t be complete till those results are published • In a first instance do good science, then publish good science “a naturalist´s life would be a happy one if he had only to observe and never to write” Charles Darwin

  5. Introduction • Bibliometry together with peer-review has been used to assess and quantify the importance of authors and scientific investigations 5

  6. Introduction • Bibliometric studies based on data from scientific publications have shown a growing development in the most advanced countries in the last years • In Portugal there are few studies of that type, at least in the field of biomedicine • Donato HM, De Oliveira CF. Patologia mamaria: avaliação da actividade cientifica nacional através de indicadores bibliométricos:1995 July 2005. Acta Med Port. 2006;19(3):225-34 • Donato HM, De Oliveira CF. Bibliometria do Cancro em Portugal: 1997 a 2006. Actualizações em Oncologia. Coimbra 17-18 Jan 2008 16/07/2014 6

  7. Bibliometry • What is Bibliometry? • A science which enables quantitative and qualitative analysis of the scientific production through evaluation of the produced literature • What does it study? • Authors • Subjects • Journals • Departments • Countries 16/07/2014 7

  8. Bibliometry Resources The widest used resource of bibliometry is the one produced by Thomson Scientific (Institute for Scientific Information), the Web of Science (WOS) It evaluates articles published in more than 8700 journals It also publishes an yearly Index (Journal Citation Reports) based on the cited articles 16/07/2014 Actualizações em Oncologia 2008 8

  9. Objectives This study deals mainly with : • The contribution of portuguese authors to the international scientific production in the specific area of Obstetrics & Gynecology • The analysis of the scientific production during the period from 1997 to 2006 16/07/2014 9

  10. Objectives • Using compiled information, the following indicators were calculated : • Quantitative • Qualitative 16/07/2014 10

  11. QuantitativeIndicators • Productivity rate of institutions • Productivity rate of authors • Growth of national production in international publications 16/07/2014 11

  12. QualitativeorImpactingIndicators • Influence and visibility of scientific production (Impact Factor) • The widest used bibliometric indicators in the assessment of quality of scientific activity are based on: • The number of citations received by the published articles • The importance / impact of the journals where they were published 16/07/2014 12

  13. Data Collection • The study was performed using the Databases • Web of Science (WOS) - http://isiknowledge.com • Medline / Pubmed – http://www.pubmed.gov • Have not considered publications in national journals, since none of the journals published in Portugal is included in Journal Citation Reports 16/07/2014 13

  14. Search • We collected all documents published between 1997 and 2006 about our thematic, where at least an author belongs to a portuguese institution • We considered all articles, independently from its tipology (revisions, clinical trials, letters, editorials…) 16/07/2014 14

  15. Results • WOS + PubMed = 846 articles • 747 articles published in Journals with Impact Factor • Our study is based upon the analysis of the 747 IF articles 16/07/2014 15

  16. Results • The portuguese scientific contribution to the international scientific production in the field Obstetrics & Gynecology during the studied period, showed a growth of 144% 16/07/2014 16

  17. DevelopmentintheproductionofScientificArticles 1997-2006 144% 16/07/2014 16/07/2014 17 17

  18. ProductivityofPortugueseAuthors • Parameter distribution by Author: • Seven authors account for 37% of the documents, contributing thus with more than 20 articles • Twenty seven authors account for 46,8% of the documents, with more than 10 articles • Others with 10 or less articles account 16,2% 16/07/2014 18

  19. Co-authorship • In biomedicine, the rule is co-authorship in publications; portuguese authors follow this international trend • The co-authorship rate exibits an increase during the years • Slight increase in the average number of authors by document 16/07/2014 19

  20. QualitativeAnalysisofResults • The analysis of qualitative data from scientific literature enables the assessment of: • The yield of scientific activity and its impact on the community • The impact of the whole of the portuguese scientific production in the area Obstetrics & Gynecology determined by the number of citations obtained by published articles 16/07/2014 20

  21. CitationReport Total 747 articles Sum of the Times Cited – 7,989 Average Citations per Item – 10.96 16/07/2014 21

  22. Citationsineachyear

  23. QualitativeAnalysisofResults • Articles which envolved international collaboration obtained an higher number of citations • More cited article (Lancet 2005) obtained 604 citations • Investigation articles are more frequently cited than clinical articles • The 747 articles were published in journals disposing of an IF 16/07/2014 23

  24. QualitativeAnalysisofResults • The most frequently used subject Categories of JCR are: • Obstetrics & Gynecology (302 articles) • Oncology (148 articles) • Pathology (146 articles) 16/07/2014 24

  25. JCR Categories • 79,7% of the articles are published in 3 Categories • 20,3% of the articles are published in 23 Categories • Biochemistry & Molecular Biology • Pharmacology & Pharmacy • Medicine, General, Internal • Endocrinology & Metabolism • Hematology • …

  26. Journalsper JCR Categories • Category Obstetrics & Gynecology • Has 59 journals, we publish in 31 • Category Oncology • Has 127 journals we publish in 39 • Category Pathology • Has 64 journals we publish in 32

  27. Regions

  28. 16/07/2014 16/07/2014 28 28

  29. 16/07/2014 16/07/2014 29 29

  30. Conclusion • The portuguese contribution to the international scientific production in the area Obstetrics & Gynecology in the time period studied is of 0,31 % 16/07/2014 30

  31. World Scientific Production 16/07/2014 16/07/2014 16/07/2014 31 31 31

  32. Iberian Scientific Production Spain is demographically 4,2 x higher than Portugal In terms of Scientific Production is 6,3 x higher than Portugal 16/07/2014 16/07/2014 16/07/2014 32 32 32

  33. Conclusion The portuguese scientific literature in this subject area shows a significant increase in the last 10 years, not only quantitavely (144%), but also at a qualitative level 16/07/2014 16/07/2014 33 33

  34. Conclusion The portuguese scientific literature in this subject area shows a significant increase in the last 10 years, not only quantitavely (144%), but also at a qualitative level 16/07/2014 16/07/2014 34 34

  35. Conclusion Qualitativeincrease (positive developmentofPortugueseinvestigationinthefield) • Growing visibility of investigation, assessed by the number of articles published in journals of international scope and prestige; publication in well positioned journals in its category ranking • Increase of international collaboration 16/07/2014 35

  36. RecommendedLiterature • Bakkalbasi N, Bauer K, Glover J, Wang L. Three options for citation tracking: Google Scholar, Scopus and Web of Science. Biomed Digit Libr. 2006 Jun 29;3:7 • Falagas ME, Pitsouni EI, Malietzis GA, Pappas G. Comparison of PubMed, Scopus, Web of Science, and Google Scholar: strengths and weaknesses. FASEB J. 2007 Sep 20; [Epub ahead of print] • King DA. The scientific impact of nations. Nature 2004;430(6997):311-6. • Manske PR. The impact of the impact factor. J Hand Surg [Am] 2004;29(6):983-6 • Moya-Anegon FD. Coverage analysis of Scopus:a journal metric approach. Scientometrics 2007;73(1), 53-78 • Nayak BK. The enigma of impact factor. Indian J Ophthalmol. 2006 Dec;54(4):225-6. • Scully C, Lodge H. Impact factors and their significance; overrated or misused? Br Dent J 2005 ;198(7):391-3 16/07/2014 36

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