La importancia de un bibliotecario en las revisiones sistemáticas.

Lo cual ratifica  a << La misión del bibliotecario>> de José Ortega y Gasset, escrito en 1936.

Rethlefsen ML, Farrel AM, Osterhaus Trzasko LC, Brigham TJ. Librarian co-authors correlated with higher quality reported search strategies in general internal medicine systematic reviews. Journal of Clinical Epidemiology. 2015; in press. DOI:

Librarian co-authors correlated with higher quality reported search strategies in general internal medicine systematic reviews



To determine whether librarian and information specialist authorship was associated with better reported systematic review search quality.

Study Design and Setting

Systematic reviews from high impact general internal medicine journals were reviewed for search quality characteristics and reporting quality by independent reviewers using three instruments, including a checklist of Institute of Medicine Recommended Standards for the Search Process and a scored modification of the Peer Review of Electronic Search Strategies instrument.


The level of librarian and information specialist participation was significantly associated with search reproducibility from reported search strategies (X2=23.5, p<.0001). Librarian co-authored systematic reviews had significantly higher odds of meeting 8 of 13 analyzed search standards than those with no librarian participation and 6 more than those with mentioned librarian participation. One-way ANOVA showed that differences in total search quality scores between all three groups were statistically significant (F2,267 = 10.1233, p<.0001).


Problems remain with systematic review search quality and reporting. Systematic reviews with librarian or information specialist co-authors are correlated with significantly higher quality reported search strategies. To minimize bias in systematic reviews, authors and editors could encourage librarian engagement in systematic reviews including authorship as a potential way to help improve documentation of the search strategy.


  • Librarians;
  • Publishing;
  • standards;
  • Quality Control;
  • systematic review;
  • authorship
Melissa L Rethlefsen: No financial conflict of interest. Ann M Farrell: No financial conflict of interest. Leah C Osterhaus Trzasko: No financial conflict of interest. Tara J Brigham: No financial conflict of interest.

Funding: This study had no funding.

Data sharing: Full datasets and technical appendix available from the corresponding author at

El bibliotecario social debe asumirse como un curador de contenidos, como un educador, como un filtro y también como una conexión