Some examples of reporting systems used for systematic reviews include PRISMA, EQUATOR, MOOSE.

PRISMA stands for Preferred Reporting Items for Systematic Reviews and Meta-Analyses.  It is an evidence-based minimum set of items for reporting in systematic reviews and meta-analyses focusing on randomized trials.  But PRISMA can also be used as a basis for reporting systematic reviews of other types of research, particularly evaluations of interventions.

EQUATOR stands for Enhancing the QUAlity of Transparency Of health Research. The international network provides a comprehensive list of reporting guidelines for different types of studies.

MOOSE stands for  Meta-analysis Of Observational Studies in Epidemiology. The checklist contains specifications for reporting meta-analyses of observational studies in epidemiology.