CONSORT vs STROBE vs PRISMA: Choose the Right Reporting Guideline
Choose CONSORT, STROBE, or PRISMA from the study design, then map the current checklist and any extension into manuscript planning and final QC.
Use CONSORT as the starting point for a randomized-trial report, STROBE for an observational-study report, and PRISMA for a systematic review. That simple distinction answers the first question, but not the whole reporting problem.
A medical writer must identify the actual design, retrieve the current checklist and relevant extension, reconcile it with the target journal’s instructions, and convert every applicable item into a document or review action. In particular, make sure a stored template has not frozen an older version: CONSORT was updated in 2025, while the current PRISMA statement is PRISMA 2020.
CONSORT, STROBE, and PRISMA at a Glance
| Guideline family | Primary use | Questions the manuscript must make visible |
|---|---|---|
| CONSORT | Randomized trials | How allocation, interventions, participant flow, outcomes, analyses, harms, and interpretation were handled |
| STROBE | Cohort, case-control, and cross-sectional studies | How participants, exposures, outcomes, confounders, bias, missing data, analyses, and generalizability were handled |
| PRISMA | Systematic reviews | How sources were searched, screened, selected, appraised, synthesized, and reported |
These are reporting frameworks, not substitutes for study conduct, statistical judgment, ethical review, or target-specific requirements.
The reporting-guideline section of the Medical Writers’ Handbook covers how to incorporate guidance into a live project.
Start with the Actual Study Design
Choose the guideline from what the study did, not from a convenient manuscript label.
Ask:
- Were participants assigned prospectively to interventions using a randomized process?
- Were exposures and outcomes observed without randomized assignment?
- Is the work a predefined search, selection, appraisal, and synthesis of existing studies?
- Is the manuscript a protocol, secondary analysis, diagnostic study, prediction model, case report, or another design needing different or additional guidance?
If the design is mixed or unusual, document the selection decision. Do not force the manuscript into a checklist that does not match its methods.
Check for Applicable Extensions
The main checklist may not be the only relevant source. Extensions can address particular interventions, trial designs, outcomes, data sources, abstracts, or other reporting contexts.
For each candidate extension, record:
- why it applies;
- which main items it modifies or expands;
- where each requirement will appear;
- who will confirm the interpretation;
- how completion will be checked.
Retrieve the current controlling material for the live project. A remembered checklist or an older template may omit changed requirements. The EQUATOR Network library is a practical starting point for checking the main guideline and its extensions.
Use the Checklist While Building the Outline
A reporting checklist is most valuable before full prose exists.
Convert each applicable item into a specific question for the manuscript plan. For example:
- Where will participant eligibility and recruitment be explained?
- Which display will reconcile participant flow?
- Where are missing data and analysis populations defined?
- Where will search dates, screening decisions, and exclusion reasons be reported?
- Which section distinguishes study limitations from limitations of the review process?
Map the answer to a section, table, figure, supplement, registry record, or explicit not-applicable decision. The document-type guide can help connect this reporting map to the appropriate manuscript structure.
Use the Checklist Again During Final QC
Complete the checklist against the final document, not an earlier draft. Inspect the manuscript together with its tables, figures, supplements, protocol or registration information, and any companion files.
A location reference is not enough. At every mapped location, verify that the content:
- answers the reporting question completely;
- agrees with the source material;
- uses consistent populations, outcomes, dates, and terminology;
- is not contradicted elsewhere;
- reflects any amendments or deviations accurately.
Record “not applicable” only after a conscious design-based decision. It is different from “not reported.”
Avoid Common Reporting-Guideline Errors
Common process errors include:
- choosing a guideline from the title rather than the design;
- using only the main checklist when an extension applies;
- adding checklist items after drafting instead of planning for them;
- pointing to a page that contains only a partial answer;
- treating the flow diagram separately from the narrative and tables;
- assuming guideline completion resolves journal, sponsor, or legal requirements;
- failing to recheck the checklist after major revisions.
The checklist should operate as both an architecture tool and a focused QC tool.
Map the current reporting checklist to the evidence, manuscript plan, review decisions, and final cited document.