This is the router. It does not replace any specialized skill. It tells you which nejm- skill to use at the current stage* of a manuscript aimed at The New England Journal of Medicine (NEJM).
Default assumption: unless the user states otherwise, the target is NEJM (the flagship clinical journal), not NEJM Evidence, NEJM AI, or NEJM Catalyst. Those siblings share house style but differ in scope and audience — flag the difference if the user names one.
NEJM rejects the large majority of submissions without external review. The editorial bar is practice-changing clinical impact backed by methodological rigor, not merely a sound study. So the first question is never "is the analysis right?" — it is "would this change how clinicians practice, and is it definitive enough to do so?" Route to nejm-fit first, always.
All four enforce ICMJE policy (trial registration, disclosures, data sharing), so the registration/reporting/ethics work transfers — but format and tone do not. Do not port a JAMA-styled manuscript across without re-styling abstract, references, and length.
| Current symptom | Next skill |
|---|---|
| Not sure the result is practice-changing / definitive enough | nejm-fit |
| Trial not registered, or no protocol / statistical analysis plan ready | nejm-study-design |
| Unsure which reporting checklist + flow diagram applies | nejm-reporting |
| No structured abstract; over 250 words; missing registration number | nejm-abstract |
| Main text bloated, over length, IMRAD unclear, discussion over-claims | nejm-writing |
| P values without CIs; ITT unclear; subgroups over-interpreted | nejm-statistics |
| Need Table 1 / Kaplan–Meier / forest plot / CONSORT diagram done right | nejm-figures-tables |
| Missing IRB / consent / ICMJE disclosures / data-sharing statement | nejm-ethics |
| References not in Vancouver / ICMJE numbered style | nejm-citation |
| About to submit; need a clinical preflight checklist | nejm-submission |
| Received reviews (incl. a statistical reviewer) / an R&R decision | nejm-rebuttal |
nejm-fit — clear the practice-changing / clinical-impact bar firstnejm-study-design — confirm registration + protocol + SAP and design rigornejm-reporting — pick the EQUATOR checklist and build the required diagramnejm-writing — choose article type and hold the terse IMRAD formnejm-statistics — CIs, ITT, multiplicity, pre-specified subgroupsnejm-figures-tables — Table 1, Kaplan–Meier, forest plots, CONSORT diagramnejm-ethics — IRB, consent, ICMJE disclosures, data-sharing statementnejm-abstract — structured ≤250-word abstract with registration number (late polish)nejm-citation — Vancouver / ICMJE reference style (late polish)nejm-submission — preflight (bundles cover letter + checklist templates)nejm-rebuttal — after review
nejm-abstractandnejm-citationare late-stage polish. Do not perfect the abstract before significance, design, and reporting are settled.
Run this gate sequence on any incoming clinical draft before routing. Answer each in order; the first NO names the next skill. Keep the filled-in log with the manuscript so co-authors see why work is sequenced this way.
NEJM ROUTING TRIAGE — complete top to bottom, stop at the first NO
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[ ] G1 Practice-changing? Would a clinician act differently on
this result, and is it definitive enough to justify that?
NO → nejm-fit (and consider a sibling journal instead)
[ ] G2 Prospectively registered, with protocol + SAP in hand?
NO → nejm-study-design (surface this before any writing)
[ ] G3 Correct EQUATOR checklist chosen; flow diagram drafted?
NO → nejm-reporting
[ ] G4 Main text terse IMRAD, near the ~2700-word Original
Article norm, discussion free of over-claims?
NO → nejm-writing
[ ] G5 CIs alongside P values; ITT stated; subgroups
pre-specified and not over-read?
NO → nejm-statistics
[ ] G6 Table 1 / Kaplan–Meier / forest plot / CONSORT diagram
built to house conventions? NO → nejm-figures-tables
[ ] G7 IRB, consent, ICMJE disclosures, data-sharing statement
all present? NO → nejm-ethics
[ ] G8 Structured abstract ≤250 words with registration number?
NO → nejm-abstract (late polish only — after G1–G7)
[ ] G9 References in Vancouver / ICMJE numbered style?
NO → nejm-citation (late polish only)
ALL YES → nejm-submission; after reviews arrive → nejm-rebuttal
nejm-fit and start polishing prose — the modal outcome is desk rejection.nejm-study-design and surface that problem first.