From Results to Defensible Claims
Framework Position
This chapter corresponds to the transition from Synthesis & Interpretation to Defensible Clinical Claims.
After integrating evidence, we now ask:
๐ What claims can we responsibly make based on this evidence?
What is a clinical claim?
A clinical claim is a statement that describes:
- the performance of a device
- its clinical benefit
- its safety profile
Claims must be:
๐ supported by evidence
๐ aligned with intended use
๐ justified through reasoning
A defensible clinical claim must be supported by appropriate, reliable, and clinically relevant evidence (โRegulation (EU) 2017/745 on Medical Devicesโ 2017).
From results to claims
Results alone do not justify claims.
A valid claim requires:
- relevant evidence
- reliable studies
- understood limitations
- acceptable risk-benefit
- appropriate clinical context
๐ Claims emerge from the full reasoning chain
What makes a claim defensible?
A defensible claim is:
- Valid โ supported by evidence
- Relevant โ aligned with intended use
- Justifiable โ reasoning is clear and structured
- Reproducible โ conclusions can be followed and verified
Overclaiming vs justified claims
Overclaiming
- extends beyond evidence
- ignores limitations
- assumes applicability
Justified claims
- stay within evidence boundaries
- acknowledge uncertainty
- are proportionate to evidence strength
Role of uncertainty
All claims carry uncertainty.
Defensible claims:
- recognize uncertainty
- do not overstate conclusions
- remain appropriately qualified
Evidence strength and claim strength
Stronger evidence โ stronger claims
Weaker evidence โ more cautious claims
๐ Claim strength must match evidence strength
Common pitfalls
- making claims directly from single studies
- ignoring bias and limitations
- overstating statistical findings
- failing to align with intended use
- vague or ambiguous wording
Structured approach
- What does the evidence support?
- What are the limitations?
- What level of confidence is appropriate?
- What claim can be justified?
- Is the claim clearly supported by reasoning?
Traceability
A defensible claim should allow:
๐ traceability back to evidence
This means:
- each claim can be linked to data
- reasoning steps are transparent
- conclusions can be reviewed
Key takeaway
Clinical claims are not derived from results alone.
They are constructed through:
๐ structured, transparent, and justified interpretation of evidence
What comes next
The next chapter focuses on writing clear and justifiable claims, translating reasoning into precise language.