LN: Page et al. (2021) — The PRISMA 2020 Statement

Bibliographic Reference

Citation: Page, M. J., et al. (2021). The PRISMA 2020 statement: An updated guideline for reporting systematic reviews. BMJ, 372, n71. https://doi.org/10.1136/bmj.n71


Pass 1 — Bird’s Eye View (5 Cs)

CAssessment
CategoryReporting guideline
ContextUpdate to the original PRISMA 2009 statement. Endorsed by the International Committee of Medical Journal Editors and adopted across disciplines including SE
CorrectnessConsensus document from 49 international experts; tested for clarity with systematic review authors
Contributions(1) 27-item PRISMA checklist; (2) PRISMA flow diagram (updated to show records from databases vs. registers); (3) Abstract checklist; (4) Guidance on AI-assisted screening transparency
ClarityExcellent — prescriptive with worked examples for each checklist item

Relevance: ⭐⭐⭐⭐⭐

PUMA’s PRISMA-trAIce protocol is built on PRISMA 2020 extended with AI transparency requirements (Marco Veritas). Every AI-assisted screening decision in PUMA’s SLR is documented per the PRISMA 2020 flow.


Pass 2 — Key Concepts

The PRISMA 2020 Flow Diagram

Identification
├── Records from databases (n=__)
├── Records from registers (n=__)
└── Records from other sources (n=__)
        ↓ Duplicates removed (n=__)
Screening
├── Records screened (n=__)
├── Records excluded (n=__)
└── Full-text assessed (n=__)
        ↓ Full-text excluded (n=__, reasons)
Included
└── Studies included in synthesis (n=__)

The 2020 update separates database and register records (previously merged), and adds a path for “other sources” to improve transparency.

The 27-Item Checklist (Key Items for PUMA)

ItemDescriptionPUMA Section
1PRISMA statement identifiedMethods
2Structured abstractAbstract
5Research questions (PICO)Methods 2.1
6Eligibility criteria (inclusion/exclusion)Methods 2.2
7Information sources (databases, dates)Methods 2.3
8Search strategy (full string)Appendix
9Selection processMethods 2.4
10Data extractionMethods 2.5
12Quality assessmentMethods 2.6
16Study selection flow diagramFigure 1
17Study characteristicsResults 3.1
25Funding sourcesAcknowledgements
27RegistrationMethods 2.1

AI-Assisted Screening and PRISMA 2020

PRISMA 2020 explicitly addresses AI-assisted screening: reviewers must document which steps were AI-assisted, which model was used, and confirm that human validation was performed. This aligns with PUMA’s PRISMA-trAIce protocol.


PUMA Integration

  • Ch.2 Literature Review: PRISMA 2020 flow diagram as Figure 1 (search → screened → included)
  • PRISMA-Log: Documents all 27 checklist items
  • PRISMA-trAIce: PUMA’s extension of PRISMA 2020 for AI-assisted screening (adds AI tool, model version, validation date)

MOCs