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Cochrane Database of Systematic Reviews

Methods for obtaining unpublished data

Overview of attention for article published in Cochrane database of systematic reviews, November 2011
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About this Attention Score

  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (85th percentile)
  • Average Attention Score compared to outputs of the same age and source

Mentioned by

twitter
16 tweeters
facebook
1 Facebook page
googleplus
1 Google+ user

Citations

dimensions_citation
83 Dimensions

Readers on

mendeley
103 Mendeley
Title
Methods for obtaining unpublished data
Published in
Cochrane database of systematic reviews, November 2011
DOI 10.1002/14651858.mr000027.pub2
Pubmed ID
Authors

Taryn Young, Sally Hopewell

Abstract

In order to minimise publication bias, authors of systematic reviews often spend considerable time trying to obtain unpublished data. These include data from studies conducted but not published (unpublished data), as either an abstract or full-text paper, as well as missing data (data available to original researchers but not reported) in published abstracts or full-text publications. The effectiveness of different methods used to obtain unpublished or missing data has not been systematically evaluated.

Twitter Demographics

The data shown below were collected from the profiles of 16 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 103 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 2 2%
Spain 1 <1%
United States 1 <1%
Germany 1 <1%
Unknown 98 95%

Demographic breakdown

Readers by professional status Count As %
Student > Master 19 18%
Researcher 18 17%
Student > Ph. D. Student 15 15%
Librarian 7 7%
Other 6 6%
Other 20 19%
Unknown 18 17%
Readers by discipline Count As %
Medicine and Dentistry 40 39%
Social Sciences 7 7%
Psychology 6 6%
Computer Science 4 4%
Pharmacology, Toxicology and Pharmaceutical Science 4 4%
Other 15 15%
Unknown 27 26%

Attention Score in Context

This research output has an Altmetric Attention Score of 8. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 27 July 2020.
All research outputs
#3,457,646
of 20,344,586 outputs
Outputs from Cochrane database of systematic reviews
#5,991
of 12,041 outputs
Outputs of similar age
#34,856
of 241,399 outputs
Outputs of similar age from Cochrane database of systematic reviews
#223
of 437 outputs
Altmetric has tracked 20,344,586 research outputs across all sources so far. Compared to these this one has done well and is in the 82nd percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 12,041 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 28.1. This one has gotten more attention than average, scoring higher than 50% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 241,399 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 85% of its contemporaries.
We're also able to compare this research output to 437 others from the same source and published within six weeks on either side of this one. This one is in the 48th percentile – i.e., 48% of its contemporaries scored the same or lower than it.