PRISMA 2020 specifies the following as essential elements:
'Review authors are expected to include a PRISMA-type flow diagram demonstrating the flow of studies throughout the selection process (Page et al 2021a)' -- Chapter III 'Reporting the review', Section III.3.4.1, Cochrane Handbook 2022
Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) are reporting guidelines for systematic reviews and meta-analyses. Often journals will ask your to report your systematic review results using PRISMA or another relevant reporting guideline. Find out more:
PRISMA 2020 resources
PRISMA 2009 RESOURCES
For information only. PRISMA 2009 has been superseded by PRISMA 2020. Reviewers are now expected to use PRIMSA 2020 standards.
‘Specify all databases, registers, websites, organisations, reference lists, and other sources searched or consulted to identify studies. Specify the date when each source was last searched or consulted.’ p.5
‘Present the full search strategies for all databases, registers, and websites, including any filters and limits used.’ p. 6
‘Describe the results of the search and selection process, from the number of records identified in the search to the number of studies included in the review, ideally using a flow diagram.’ p. 18
- PRISMA 2020 Explanation and Elaboration
There are several reporting guidelines available, including Consort, Moose, and Strobe.