- To add a statement by the Editor in Chief about the status or context of a Cochrane Review or protocol. This type of Editorial note is usually initiated by the Editor in Chief and must be approved by the Editor in Chief before publication.
- To publish an Expression of Concern about a review or protocol. This type of Editorial note may be used as part of the process when studies included in a Cochrane Review are identified as potentially problematic, or as part of an investigation relating to concerns about the conduct or reporting of a Cochrane Review. This type of Editorial note should be agreed with Cochrane's Research Integrity team (firstname.lastname@example.org) before publication.
- To direct readers to a more recent review or protocol that has been published independently of the current review (not as an update or amendment).
This type of editorial note may be used on an older review when the review question has been addressed in a newer review with a broader scope or different methodology, or when a new protocol has been published, or in any other case where a review has not been updated but has been superseded by another review. This option is available for use by Cochrane Review Groups without approval by the Editor in Chief.
- To inform readers that a protocol will not be progressed to the review stage. This type of Editorial note is used in cases where, prior to December 2021March 2022, a protocol would have been withdrawn. Since December 2021March 2022, protocols must no longer be withdrawn for any reason other than serious error. (For more information on withdrawing protocols for serious error, see the withdrawal policy.) This option is available for use by Cochrane Review Groups without approval by the Editor in Chief.