Guest / gift / ghost authorship

This problem is not addressed by any checklist or guideline. The number of authors on a systematic review may change between registration and publication. But clarity as to what roles each author had in the systematic review process is required so that the public can understand who is conducting the research they are reading.

Articles that support this problem:

Increasing number of authors in Cochrane reviews

2020 : Journal of evidence‐based medicine

More than one-third of Cochrane reviews had gift authors, whereas ghost authorship was rare

2020 : Journal of clinical epidemiology

Group authorships in Cochrane had low compliance with Cochrane recommendations

2020 : Journal of evidence-based medicine

Prevalence of honorary and ghost authorship in Cochrane reviews

2002 : Jama