PRISMA 2020 explanation and elaboration paper
It is strongly recommended that the PRISMA 2020 statement paper be read in conjunction with the PRISMA 2020 explanation and elaboration paper. The latter paper is intended to enhance the use, understanding and dissemination of the PRISMA 2020 statement. Through exemplars of good reporting and explanations, the meaning and rationale for each checklist item are presented.
Page MJ, Moher D, Bossuyt PM, Boutron I, Hoffmann TC, Mulrow CD, et al. PRISMA 2020 explanation and elaboration: updated guidance and exemplars for reporting systematic reviews. BMJ 2021;372:n160. doi: 10.1136/bmj.n160
Exemplars of good reporting for each checklist item in PRISMA 2020: PDF