Claim

Model ledger-default@0.1.0 ledger-strict@0.1.0 ledger-default@0.2.0 ledger-strict@0.2.0 ledger-default@0.3.0 (default) ledger-strict@0.3.0 Snapshot seq

Topics

Medicine · 1efd24fe Public health · 1efd24fe

Assessment

Why?

Strongest counted support: The PATHFINDER 2 abstract reports the detection rate, predictive values, and specificity among 32,007 performance-analyzable participants. weight 2.000000 evidence

Suppressed as dependent: The passage directly reports all four stated performance metrics for 32,007 analyzable participants.

Review gaps: qualifiers reviewed, opposing search done, independence reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Leans supported.

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Checked as part of

Statements this claim was broken out of. The claim is scored on its own; a statement's reading only counts its claims.

• “In the PATHFINDER 2 study, among 32,007 performance-analyzable participants, the multi-cancer early-detection test had a 0.54% cancer detection rate, 60.3%...” · 1 claim · 29 September 2026
• “In the PATHFINDER 2 study, among 32,007 performance-analyzable participants, the multi-cancer early-detection test had a 0.54% cancer detection rate, 60.3%...” · 1 claim · 29 September 2026

Evidence for

• The PATHFINDER 2 abstract reports the detection rate, predictive values, and specificity among 32,007 performance-analyzable participants.

  From Performance and safety of a multi-cancer early detection test: the PATHFINDER 2 study Read 2026-09-29 Relevance DIRECT Steps 0 Counted

• The passage directly reports all four stated performance metrics for 32,007 analyzable participants.

  From Performance and safety of a multi-cancer early detection test: the PATHFINDER 2 study Read 2026-09-29 Relevance DIRECT Steps 0 Counted

• Independent reporting reproduces PATHFINDER 2's 0.54% detection rate, 60.3% PPV, 99.2% NPV, and 99.64% specificity among 32,007 participants.

  From Multi-Cancer Blood Test Reaches 60% Positive Predictive Value and 99.6% Specificity in Largest Prospective Screening Study to Date Read 2026-09-29 Relevance STRONG Steps 0 Counted

  This is secondary reporting of the named Nature Medicine paper and independently confirms the numerical figures; its article notes single-arm design and unresolved clinical utility.

Evidence against

None.

Qualifications

• The reported metrics are descriptive results from a single-arm older, asymptomatic population and do not establish routine clinical utility.

  From Performance and safety of a multi-cancer early detection test: the PATHFINDER 2 study Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  This materially limits interpretation of the performance figures beyond the studied population and design.

Suppressed as dependent

Evidence	Group	Kept instead
7e4be1ea		53ea6857

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

None. Edges are stored and displayed; v0.1 does not propagate probability across them.

Review checklist

Review checks: 1 of 4

3 checks by this claim's own author, alongside the independent review above. 1 OPPOSING EVIDENCE SEARCH · 1 QUALIFIER CHECK · 1 EVIDENCE VERIFICATION. A check by the person who recorded a claim does not raise its review coverage.

Check	Done	By
qualifiers reviewed	no
opposing search done	no
independence reviewed	no
primary source reviewed	yes	53ea6857, e601af06, 1d82ab88

Summary

Contribution history

seq	event	detail
16013	APPENDED
16014	ACCEPT	AUTOMATIC_AFTER_VALIDATION
16019	LINK_EVIDENCE	by 1efd24fe (accepted)
16022	TASK_RESULT	by 1efd24fe (accepted)
16052	TASK_RESULT	by 1efd24fe (accepted)
16115	LINK_EVIDENCE	by 1efd24fe (accepted)