The PRISMA 2020 statement: An updated guideline for reporting systematic reviews.

Area of Science:

• Medical Research Methodology
• Evidence Synthesis
• Scientific Reporting Standards

Background:

• The original Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) statement was published in 2009.
• Advances in systematic review methodology and terminology over the past decade necessitate an update.
• The PRISMA 2009 statement aimed to improve transparency in reporting systematic reviews.

Purpose of the Study:

• To present the updated PRISMA 2020 statement, replacing the 2009 version.
• To provide new reporting guidance reflecting advancements in systematic review methods.
• To facilitate the transparent reporting of systematic reviews and meta-analyses.

Main Methods:

• The PRISMA 2020 statement includes a 27-item checklist with detailed reporting recommendations.
• An expanded checklist is provided, detailing recommendations for each item.
• Revised flow diagrams for original and updated reviews are presented.

Main Results:

• The PRISMA 2020 statement incorporates new reporting guidance for study identification, selection, appraisal, and synthesis.
• The structure and presentation of reporting items have been modified for easier implementation.
• The updated guideline aims to enhance the transparency and rigor of systematic reviews.

Conclusions:

• The PRISMA 2020 statement is the new standard for reporting systematic reviews and meta-analyses.
• Adherence to the PRISMA 2020 guidelines will improve the quality and reproducibility of systematic reviews.
• The updated statement ensures reporting practices keep pace with methodological advancements in the field.