Why English? | Reporting PRISMA-LSR Living Systematic Reviews Through Living Parameters, Search Updates, Method Changes, Results, Version Roles and Retirement

ORIENTATION

What this guide covers

Current fact check

PRISMA-LSR was published in BMJ 387:e079183 on 19 November 2024, DOI 10.1136/bmj-2024-079183, PubMed ID 39562017. It is an add-on to PRISMA 2020 with four new items, new elements under existing items, tailored flow diagrams and status-reporting recommendations.

What this guide does not cover

This article focuses on reporting living systematic reviews. It does not conduct a review, judge the certainty of a body of evidence, promise real-time updating, replace PRISMA 2020 or PRISMA-P, or make every research question suitable for living mode.

Worked example

Every chapter returns to a fictional living review of school-based interventions intended to improve adolescent sleep, updated as new controlled studies appear. It is fictional, low-stakes and educational; it does not report a real school, clinical decision or guaranteed outcome.

Warm up with eduKate’s guides to explaining scientific evidence and asking better questions in class.

CHAPTER 1 OF 15

1. Explain Why the Review Should Be Living

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Why this move matters

State why new evidence is expected, why decisions need timely synthesis and why the resources are justified.

Make the living promise operational

State why new evidence is expected, why decisions need timely synthesis and why the resources are justified. Connect scope, rationale, living parameters, continual searches, screening, synthesis, version changes, author roles, status and retirement.

Follow one review through three versions

Worked example: Rapidly developing school-sleep interventions could change recommendations within months. Track what changed in the question, methods, evidence, conclusions and public status each time.

Keep “living” separate from merely “recent”

A recently published review is not automatically living. A living review needs an ongoing process, declared update logic and visible status.

Use PRISMA-LSR as an add-on

A fashionable topic is not automatically suitable for permanent surveillance. The 2024 extension adds living-review items and elements to PRISMA 2020; it does not replace the parent statement or guarantee that continual updating is worthwhile.

Student, parent and career transfer

Make one evidence card for “Explain Why the Review Should Be Living”: source location, plain-language meaning, limit and next question. A parent or teacher can ask for one everyday explanation and one specialist explanation; both must preserve the same conditions. This habit supports education research, medicine, public health, library science, evidence synthesis, guideline development, journalism, policy, publishing and knowledge management without promising a grade, admission, funding decision or job.

CHAPTER 2 OF 15

2. Define the Review Question and Stable Core

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Why this move matters

Report population, intervention or exposure, comparator, outcomes, settings and which elements may change.

Make the living promise operational

Report population, intervention or exposure, comparator, outcomes, settings and which elements may change. Connect scope, rationale, living parameters, continual searches, screening, synthesis, version changes, author roles, status and retirement.

Follow one review through three versions

Worked example: The review keeps adolescent sleep outcomes stable while permitting new digital and school-timetable interventions. Track what changed in the question, methods, evidence, conclusions and public status each time.

Keep “living” separate from merely “recent”

A recently published review is not automatically living. A living review needs an ongoing process, declared update logic and visible status.

Use PRISMA-LSR as an add-on

Unplanned scope drift can make versions answer different questions. The 2024 extension adds living-review items and elements to PRISMA 2020; it does not replace the parent statement or guarantee that continual updating is worthwhile.

Student, parent and career transfer

Make one evidence card for “Define the Review Question and Stable Core”: source location, plain-language meaning, limit and next question. A parent or teacher can ask for one everyday explanation and one specialist explanation; both must preserve the same conditions. This habit supports education research, medicine, public health, library science, evidence synthesis, guideline development, journalism, policy, publishing and knowledge management without promising a grade, admission, funding decision or job.

CHAPTER 3 OF 15

3. Declare Living-Mode Parameters

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Why this move matters

Specify search frequency, screening cadence, incorporation timing, update triggers, pause rules and retirement criteria.

Make the living promise operational

Specify search frequency, screening cadence, incorporation timing, update triggers, pause rules and retirement criteria. Connect scope, rationale, living parameters, continual searches, screening, synthesis, version changes, author roles, status and retirement.

Follow one review through three versions

Worked example: Searches run monthly, while publication occurs when new evidence changes estimates or certainty. Track what changed in the question, methods, evidence, conclusions and public status each time.

Keep “living” separate from merely “recent”

A recently published review is not automatically living. A living review needs an ongoing process, declared update logic and visible status.

Use PRISMA-LSR as an add-on

Searching often does not guarantee updating quickly. The 2024 extension adds living-review items and elements to PRISMA 2020; it does not replace the parent statement or guarantee that continual updating is worthwhile.

Student, parent and career transfer

Make one evidence card for “Declare Living-Mode Parameters”: source location, plain-language meaning, limit and next question. A parent or teacher can ask for one everyday explanation and one specialist explanation; both must preserve the same conditions. This habit supports education research, medicine, public health, library science, evidence synthesis, guideline development, journalism, policy, publishing and knowledge management without promising a grade, admission, funding decision or job.

CHAPTER 4 OF 15

4. Report Protocol, Registration and Governance

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Why this move matters

Link protocol and registration, version them, identify decision authority and record amendments.

Make the living promise operational

Link protocol and registration, version them, identify decision authority and record amendments. Connect scope, rationale, living parameters, continual searches, screening, synthesis, version changes, author roles, status and retirement.

Follow one review through three versions

Worked example: A governance log shows who can change eligibility rules and why. Track what changed in the question, methods, evidence, conclusions and public status each time.

Keep “living” separate from merely “recent”

A recently published review is not automatically living. A living review needs an ongoing process, declared update logic and visible status.

Use PRISMA-LSR as an add-on

A protocol can become outdated if amendments are hidden. The 2024 extension adds living-review items and elements to PRISMA 2020; it does not replace the parent statement or guarantee that continual updating is worthwhile.

Student, parent and career transfer

Make one evidence card for “Report Protocol, Registration and Governance”: source location, plain-language meaning, limit and next question. A parent or teacher can ask for one everyday explanation and one specialist explanation; both must preserve the same conditions. This habit supports education research, medicine, public health, library science, evidence synthesis, guideline development, journalism, policy, publishing and knowledge management without promising a grade, admission, funding decision or job.

CHAPTER 5 OF 15

5. Describe Continual Search and Surveillance

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Why this move matters

Report sources, dates, alerts, automation, deduplication, hand searching and the last completed search.

Make the living promise operational

Report sources, dates, alerts, automation, deduplication, hand searching and the last completed search. Connect scope, rationale, living parameters, continual searches, screening, synthesis, version changes, author roles, status and retirement.

Follow one review through three versions

Worked example: Database alerts and trial-register checks feed a documented monthly pipeline. Track what changed in the question, methods, evidence, conclusions and public status each time.

Keep “living” separate from merely “recent”

A recently published review is not automatically living. A living review needs an ongoing process, declared update logic and visible status.

Use PRISMA-LSR as an add-on

Automated alerts can miss indexing variants and unpublished records. The 2024 extension adds living-review items and elements to PRISMA 2020; it does not replace the parent statement or guarantee that continual updating is worthwhile.

Student, parent and career transfer

Make one evidence card for “Describe Continual Search and Surveillance”: source location, plain-language meaning, limit and next question. A parent or teacher can ask for one everyday explanation and one specialist explanation; both must preserve the same conditions. This habit supports education research, medicine, public health, library science, evidence synthesis, guideline development, journalism, policy, publishing and knowledge management without promising a grade, admission, funding decision or job.

CHAPTER 6 OF 15

6. Show Screening and Study Flow Across Versions

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Why this move matters

Use tailored flow reporting to distinguish previously included, newly found, awaiting and excluded records.

Make the living promise operational

Use tailored flow reporting to distinguish previously included, newly found, awaiting and excluded records. Connect scope, rationale, living parameters, continual searches, screening, synthesis, version changes, author roles, status and retirement.

Follow one review through three versions

Worked example: The third version identifies two new reports, one ongoing study and one corrected duplicate. Track what changed in the question, methods, evidence, conclusions and public status each time.

Keep “living” separate from merely “recent”

A recently published review is not automatically living. A living review needs an ongoing process, declared update logic and visible status.

Use PRISMA-LSR as an add-on

A conventional one-time flow diagram can obscure accumulated evidence. The 2024 extension adds living-review items and elements to PRISMA 2020; it does not replace the parent statement or guarantee that continual updating is worthwhile.

Student, parent and career transfer

Make one evidence card for “Show Screening and Study Flow Across Versions”: source location, plain-language meaning, limit and next question. A parent or teacher can ask for one everyday explanation and one specialist explanation; both must preserve the same conditions. This habit supports education research, medicine, public health, library science, evidence synthesis, guideline development, journalism, policy, publishing and knowledge management without promising a grade, admission, funding decision or job.

CHAPTER 7 OF 15

7. Report Changes to Eligibility and Methods

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Why this move matters

State every change to criteria, outcomes, appraisal, synthesis or automation and explain its effect.

Make the living promise operational

State every change to criteria, outcomes, appraisal, synthesis or automation and explain its effect. Connect scope, rationale, living parameters, continual searches, screening, synthesis, version changes, author roles, status and retirement.

Follow one review through three versions

Worked example: A new outcome measure is added after stakeholder consultation and older records are re-screened. Track what changed in the question, methods, evidence, conclusions and public status each time.

Keep “living” separate from merely “recent”

A recently published review is not automatically living. A living review needs an ongoing process, declared update logic and visible status.

Use PRISMA-LSR as an add-on

Method change after seeing results may create bias. The 2024 extension adds living-review items and elements to PRISMA 2020; it does not replace the parent statement or guarantee that continual updating is worthwhile.

Student, parent and career transfer

Make one evidence card for “Report Changes to Eligibility and Methods”: source location, plain-language meaning, limit and next question. A parent or teacher can ask for one everyday explanation and one specialist explanation; both must preserve the same conditions. This habit supports education research, medicine, public health, library science, evidence synthesis, guideline development, journalism, policy, publishing and knowledge management without promising a grade, admission, funding decision or job.

CHAPTER 8 OF 15

8. Report Changes to Included Evidence

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Why this move matters

Identify new, corrected, withdrawn and reclassified studies and how each affects analyses.

Make the living promise operational

Identify new, corrected, withdrawn and reclassified studies and how each affects analyses. Connect scope, rationale, living parameters, continual searches, screening, synthesis, version changes, author roles, status and retirement.

Follow one review through three versions

Worked example: A corrected study changes its sample size and confidence interval in the new version. Track what changed in the question, methods, evidence, conclusions and public status each time.

Keep “living” separate from merely “recent”

A recently published review is not automatically living. A living review needs an ongoing process, declared update logic and visible status.

Use PRISMA-LSR as an add-on

Adding studies without noting corrections can break the evidence trail. The 2024 extension adds living-review items and elements to PRISMA 2020; it does not replace the parent statement or guarantee that continual updating is worthwhile.

Student, parent and career transfer

Make one evidence card for “Report Changes to Included Evidence”: source location, plain-language meaning, limit and next question. A parent or teacher can ask for one everyday explanation and one specialist explanation; both must preserve the same conditions. This habit supports education research, medicine, public health, library science, evidence synthesis, guideline development, journalism, policy, publishing and knowledge management without promising a grade, admission, funding decision or job.

CHAPTER 9 OF 15

9. Report Changes to Results and Conclusions

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Why this move matters

Compare effect estimates, heterogeneity, certainty, interpretation and recommendations with the prior version.

Make the living promise operational

Compare effect estimates, heterogeneity, certainty, interpretation and recommendations with the prior version. Connect scope, rationale, living parameters, continual searches, screening, synthesis, version changes, author roles, status and retirement.

Follow one review through three versions

Worked example: The direction stays similar but uncertainty narrows, so the conclusion changes from insufficient evidence to cautious support. Track what changed in the question, methods, evidence, conclusions and public status each time.

Keep “living” separate from merely “recent”

A recently published review is not automatically living. A living review needs an ongoing process, declared update logic and visible status.

Use PRISMA-LSR as an add-on

No statistical change does not mean no practical change. The 2024 extension adds living-review items and elements to PRISMA 2020; it does not replace the parent statement or guarantee that continual updating is worthwhile.

Student, parent and career transfer

Make one evidence card for “Report Changes to Results and Conclusions”: source location, plain-language meaning, limit and next question. A parent or teacher can ask for one everyday explanation and one specialist explanation; both must preserve the same conditions. This habit supports education research, medicine, public health, library science, evidence synthesis, guideline development, journalism, policy, publishing and knowledge management without promising a grade, admission, funding decision or job.

CHAPTER 10 OF 15

10. Name Authors and Roles for Each Version

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Why this move matters

Report who searched, screened, appraised, analysed, wrote, approved and maintained each version.

Make the living promise operational

Report who searched, screened, appraised, analysed, wrote, approved and maintained each version. Connect scope, rationale, living parameters, continual searches, screening, synthesis, version changes, author roles, status and retirement.

Follow one review through three versions

Worked example: The maintenance team changes while senior accountability remains explicit. Track what changed in the question, methods, evidence, conclusions and public status each time.

Keep “living” separate from merely “recent”

A recently published review is not automatically living. A living review needs an ongoing process, declared update logic and visible status.

Use PRISMA-LSR as an add-on

A permanent group name can hide turnover and responsibility. The 2024 extension adds living-review items and elements to PRISMA 2020; it does not replace the parent statement or guarantee that continual updating is worthwhile.

Student, parent and career transfer

Make one evidence card for “Name Authors and Roles for Each Version”: source location, plain-language meaning, limit and next question. A parent or teacher can ask for one everyday explanation and one specialist explanation; both must preserve the same conditions. This habit supports education research, medicine, public health, library science, evidence synthesis, guideline development, journalism, policy, publishing and knowledge management without promising a grade, admission, funding decision or job.

CHAPTER 11 OF 15

11. Maintain Quality Control Between Updates

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Why this move matters

Describe duplicate review, calibration, conflict resolution, software checks, audit sampling and error correction.

Make the living promise operational

Describe duplicate review, calibration, conflict resolution, software checks, audit sampling and error correction. Connect scope, rationale, living parameters, continual searches, screening, synthesis, version changes, author roles, status and retirement.

Follow one review through three versions

Worked example: Automation ranks records, but humans verify exclusions and audit low-ranked samples. Track what changed in the question, methods, evidence, conclusions and public status each time.

Keep “living” separate from merely “recent”

A recently published review is not automatically living. A living review needs an ongoing process, declared update logic and visible status.

Use PRISMA-LSR as an add-on

Speed can amplify systematic error. The 2024 extension adds living-review items and elements to PRISMA 2020; it does not replace the parent statement or guarantee that continual updating is worthwhile.

Student, parent and career transfer

Make one evidence card for “Maintain Quality Control Between Updates”: source location, plain-language meaning, limit and next question. A parent or teacher can ask for one everyday explanation and one specialist explanation; both must preserve the same conditions. This habit supports education research, medicine, public health, library science, evidence synthesis, guideline development, journalism, policy, publishing and knowledge management without promising a grade, admission, funding decision or job.

CHAPTER 12 OF 15

12. Disclose Funding, Interests and Sustainability

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Why this move matters

Report funding periods, infrastructure, competing interests and what happens if support ends.

Make the living promise operational

Report funding periods, infrastructure, competing interests and what happens if support ends. Connect scope, rationale, living parameters, continual searches, screening, synthesis, version changes, author roles, status and retirement.

Follow one review through three versions

Worked example: The review states that monthly surveillance depends on a grant ending next year. Track what changed in the question, methods, evidence, conclusions and public status each time.

Keep “living” separate from merely “recent”

A recently published review is not automatically living. A living review needs an ongoing process, declared update logic and visible status.

Use PRISMA-LSR as an add-on

An unfunded living promise may quietly become stale. The 2024 extension adds living-review items and elements to PRISMA 2020; it does not replace the parent statement or guarantee that continual updating is worthwhile.

Student, parent and career transfer

Make one evidence card for “Disclose Funding, Interests and Sustainability”: source location, plain-language meaning, limit and next question. A parent or teacher can ask for one everyday explanation and one specialist explanation; both must preserve the same conditions. This habit supports education research, medicine, public health, library science, evidence synthesis, guideline development, journalism, policy, publishing and knowledge management without promising a grade, admission, funding decision or job.

CHAPTER 13 OF 15

13. Publish a Clear Current Status

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Why this move matters

State whether the review is ongoing, paused, being updated, has new studies awaiting incorporation or is retired.

Make the living promise operational

State whether the review is ongoing, paused, being updated, has new studies awaiting incorporation or is retired. Connect scope, rationale, living parameters, continual searches, screening, synthesis, version changes, author roles, status and retirement.

Follow one review through three versions

Worked example: A status box says searches are current to 1 October and one eligible study is being assessed. Track what changed in the question, methods, evidence, conclusions and public status each time.

Keep “living” separate from merely “recent”

A recently published review is not automatically living. A living review needs an ongoing process, declared update logic and visible status.

Use PRISMA-LSR as an add-on

A publication date alone cannot communicate pipeline status. The 2024 extension adds living-review items and elements to PRISMA 2020; it does not replace the parent statement or guarantee that continual updating is worthwhile.

Student, parent and career transfer

Make one evidence card for “Publish a Clear Current Status”: source location, plain-language meaning, limit and next question. A parent or teacher can ask for one everyday explanation and one specialist explanation; both must preserve the same conditions. This habit supports education research, medicine, public health, library science, evidence synthesis, guideline development, journalism, policy, publishing and knowledge management without promising a grade, admission, funding decision or job.

CHAPTER 14 OF 15

14. Retire Living Mode Responsibly

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Why this move matters

Explain retirement criteria, date, final search, unresolved evidence and whether standard updates may continue.

Make the living promise operational

Explain retirement criteria, date, final search, unresolved evidence and whether standard updates may continue. Connect scope, rationale, living parameters, continual searches, screening, synthesis, version changes, author roles, status and retirement.

Follow one review through three versions

Worked example: The review retires after evidence stabilises and new studies become unlikely to change decisions. Track what changed in the question, methods, evidence, conclusions and public status each time.

Keep “living” separate from merely “recent”

A recently published review is not automatically living. A living review needs an ongoing process, declared update logic and visible status.

Use PRISMA-LSR as an add-on

Retirement is not failure when it follows a declared rule. The 2024 extension adds living-review items and elements to PRISMA 2020; it does not replace the parent statement or guarantee that continual updating is worthwhile.

Student, parent and career transfer

Make one evidence card for “Retire Living Mode Responsibly”: source location, plain-language meaning, limit and next question. A parent or teacher can ask for one everyday explanation and one specialist explanation; both must preserve the same conditions. This habit supports education research, medicine, public health, library science, evidence synthesis, guideline development, journalism, policy, publishing and knowledge management without promising a grade, admission, funding decision or job.

CHAPTER 15 OF 15

15. Help Readers Use the Right Version

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Why this move matters

Provide persistent links, version labels, change summaries, citation guidance and warnings for superseded versions.

Make the living promise operational

Provide persistent links, version labels, change summaries, citation guidance and warnings for superseded versions. Connect scope, rationale, living parameters, continual searches, screening, synthesis, version changes, author roles, status and retirement.

Follow one review through three versions

Worked example: A student is directed from an older PDF to the current report and its change table. Track what changed in the question, methods, evidence, conclusions and public status each time.

Keep “living” separate from merely “recent”

A recently published review is not automatically living. A living review needs an ongoing process, declared update logic and visible status.

Use PRISMA-LSR as an add-on

Search engines may surface an obsolete version first. The 2024 extension adds living-review items and elements to PRISMA 2020; it does not replace the parent statement or guarantee that continual updating is worthwhile.

Student, parent and career transfer

Make one evidence card for “Help Readers Use the Right Version”: source location, plain-language meaning, limit and next question. A parent or teacher can ask for one everyday explanation and one specialist explanation; both must preserve the same conditions. This habit supports education research, medicine, public health, library science, evidence synthesis, guideline development, journalism, policy, publishing and knowledge management without promising a grade, admission, funding decision or job.

PRACTICE LAB

Build a PRISMA-LSR living-review reporting decision trail

Student route

1. Choose one original report inside this guide’s scope.
2. Copy its objective and underline actor, action, context, evidence and intended decision.
3. Draw the specific reasoning chain used in this article.
4. Mark each step reported, inferred, contested or unknown.
5. Rewrite the conclusion so it preserves the narrowest important limitation.

Parent or teacher route

Ask the learner to explain how English helps us report living systematic reviews so update rules, changing evidence, version history, author roles, current status and retirement remain understandable twice: once to a classmate and once to a method specialist. Praise a precise correction and a well-stated unknown; both show disciplined attention to evidence.

Early-career route

Create a one-page PRISMA-LSR living-review reporting audit with source link, date checked, scope, method logic, decisive wording, contrary evidence, limit and next action. A colleague should be able to continue without guessing.

Continue with eduKate’s guides to reading course and career information and giving useful feedback in group projects.

USEFUL NEXT READING

Continue with a related guide

Read the RAMESES II realist-evaluation guide for a related but different reader job. Return here when the question is specifically how to report living systematic reviews so update rules, changing evidence, version history, author roles, current status and retirement remain understandable. Use the linked guide for its separate reader task, and this guide for the question defined here.

For English practice across research, school and career communication, visit the Singapore English Tuition Centre learning site.

FREQUENTLY ASKED QUESTIONS

Questions students and parents often ask

What is a living systematic review?

A review with ongoing surveillance and a plan to incorporate relevant new evidence soon after it appears.

Does PRISMA-LSR replace PRISMA 2020?

No. It is an add-on used with PRISMA 2020.

How many new items does PRISMA-LSR add?

Four: living parameters, method changes, result changes, and authors and roles for each version.

Must every new study trigger publication?

No. The review should predefine how studies are incorporated and what triggers an update.

What does retirement mean?

The review leaves living mode under stated criteria; the final status and search date should remain clear.

Why does English matter here?

Readers need exact version, change, status and timing language to know which evidence they are using.