This anonymised database reports information on whether an author was 1) included in the author byline of the updated review and 2) omitted in the acknowledgements of the updated review.

It contains information for all the reviews published in the Cochrane Database of Systematic Reviews and that had been subject to an update as of June 2019, corresponding to 2,127 unique review-review pairs.

We removed from the sample 36 reviews in which the acknowledgements section was missing. This left us with 2,091 review pairs corresponding to 8,267 non-unique authors.

The final database report information for 7,752 authors for whom race, gender and publication information were available.