Inflated numbers of authors over time have not been just due to increasing research complexity
| dc.contributor.author | Papatheodorou, S. I. | en |
| dc.contributor.author | Trikalinos, T. A. | en |
| dc.contributor.author | Ioannidis, J. P. | en |
| dc.date.accessioned | 2015-11-24T19:10:08Z | |
| dc.date.available | 2015-11-24T19:10:08Z | |
| dc.identifier.issn | 0895-4356 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/20794 | |
| dc.rights | Default Licence | - |
| dc.subject | *Authorship | en |
| dc.subject | Bibliometrics | en |
| dc.subject | Biomedical Research/*trends | en |
| dc.subject | Humans | en |
| dc.subject | Medical Records/statistics & numerical data | en |
| dc.subject | Periodicals as Topic/statistics & numerical data/trends | en |
| dc.subject | Publishing/statistics & numerical data/trends | en |
| dc.subject | Randomized Controlled Trials as Topic/statistics & numerical data/trends | en |
| dc.title | Inflated numbers of authors over time have not been just due to increasing research complexity | en |
| heal.abstract | OBJECTIVE: To examine trends in and determinants of the number of authors in clinical studies. STUDY DESIGN AND SETTING: We analyzed determinants of the number of authors in 633 articles of randomized trials and 313 articles of nonrandomized studies included in large meta-analyses (seven and six topics, respectively). Analyses were adjusted for topic. We also evaluated 310 randomly sampled case reports that had an abstract and described a single case. RESULTS: After adjusting for topic and other determinants, for both randomized trials and nonrandomized studies, the number of authors increased by 0.8 per decade (P<0.001). Topic was a strong determinant of the number of authors; other independent factors included journal impact factor, multinational authorship, and (for randomized trials) article length and sample size. Trials from South Europe (+1.1 authors) and North America (+0.9) and nonrandomized studies from South Europe (+1.8) had more authors than studies from North Europe (P<0.001). For case reports, only geographic location and article length were significantly related with author numbers. CONCLUSION: The number of authors in articles of randomized and nonrandomized studies has increased over time, even after adjusting for the topic, size, and visibility of a study. The academic coinage of authorship may be suffering from inflation. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | 10.1016/j.jclinepi.2007.07.017 | - |
| heal.identifier.secondary | http://www.ncbi.nlm.nih.gov/pubmed/18471658 | - |
| heal.identifier.secondary | http://ac.els-cdn.com/S0895435607002909/1-s2.0-S0895435607002909-main.pdf?_tid=3111eb1fc621269bf58a2434e9d52fcf&acdnat=1333363818_646b5fd38a5dcc2be7abea3f77f62360 | - |
| heal.journalName | J Clin Epidemiol | en |
| heal.journalType | peer-reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2008 | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών Υγείας. Τμήμα Ιατρικής | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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