Current policy to guide inclusion of studies in Injuries Group reviews

All of the reviews registered to the Injuries Group will be brought to publication according to the methods described in the published protocol. 

Evolution of the Injuries Group editorial policy:

In 2015 the Cochrane Injuries Group staff editors published an editorial policy setting out a variety of methods to be used by review authors with the aim of improving the validity of a review’s results.

Roberts I, Ker K, Edwards P, Beecher D, Manno D, Sydenham E. The knowledge system underpinning health care is not fit for purpose and must change. BMJ 2015;350:h2463.

The need for an editorial policy arose when a number of retraction notices were issued for studies included in the Group’s reviews. 

The Injuries Group editorial policy was debated at the 2015 Cochrane Colloquium in Vienna.
A recording of Professor Roberts’ presentation which outlines the rationale for the policy is available towards the bottom of the page linked above.  

An outcome of the Vienna methods debate was Cochrane’s Scientific Committee’s decision in 2018 to advise against the routine use of Cumulative Meta-Analysis methods in Cochrane systematic reviews.  A panel of statistical experts came to the decision by consensus.

The rationale for work in this area was discussed again at an open seminar 2021:

A number of editorial and methods policies have subsequently been developed by Cochrane which explore the variety of issues set out as the basis for the Injuries Group editorial policy.  The 2015 Injuries Group editorial policy is now outdated and researchers in the field of evidence synthesis should look to the following materials for guidance:

  1. Cochrane’s Policy on Managing Potentially Problematic Studies:
  2. Searching for retractions guidance
    See Parts 1 and 2 of the Policy Documentation.

An editorial by Cochrane’s Research Integrity Department describing the problem of problematic studies and announcing the Managing Potentially Problematic Studies Policy:

Further reading: