Absolute-Risk Treatment Lens
Translate treatment claims into personal odds before deciding
- Difficulty
- Easy
- Time to result
- ~days to results
- Steps
- 5
- Confidence
- 96%
The lens turns a treatment headline into a decision a patient can understand. Start with the untreated baseline: how many comparable people experience the outcome over a stated period? Then express the treatment effect as an absolute change, not only a relative reduction. From that, calculate the number needed to treat and place it beside the frequency, severity, and reversibility of harms. Finally, examine the evidence source, note unresolved uncertainty, and compare realistic alternatives. The output is not an automatic yes or no. It is a shared-decision conversation in which the patient can judge whether the likely benefit is worth the burden and risk for their own circumstances.
Origin
Extracted from The Diary of a CEO
Core principles
- 01Relative risk can make a small absolute benefit look large
- 02Benefits and harms belong in the same comparison
- 03Evidence quality and uncertainty matter alongside the headline number
- 04A decision should reflect the patient's priorities and alternatives
How to run it
- 1
Establish the baseline
Ask how often the unwanted outcome occurs in comparable untreated people and over what time period.
Pro tip Keep the denominator and time horizon identical throughout the comparison.
Watch out A percentage without a baseline can be misleading.
- 2
Translate the benefit
Convert the reported relative reduction into an absolute percentage-point reduction and a number needed to treat.
Pro tip Use natural frequencies such as one person out of 100 when possible.
Watch out Do not treat relative and absolute reductions as interchangeable.
- 3
Add harms
Place likely adverse effects beside the benefit, separating quality-of-life effects from hospitalization, disability, or death.
Pro tip Ask whether common harms reverse after dose reduction or stopping.
Watch out Do not compare a broad harm category with a narrowly defined benefit without explaining the mismatch.
- 4
Audit the evidence
Check study population, funding, independent verification, and whether the evidence applies to the individual patient.
Pro tip Name uncertainty instead of converting it into false precision.
Watch out A conflict of interest signals possible bias; it does not by itself disprove a result.
- 5
Compare and decide
Discuss appropriate non-drug options, personal priorities, and the consequences of accepting or declining treatment before reaching a shared decision.
Pro tip Record what mattered most to the patient so the choice can be revisited.
Watch out Never use this framework to delay emergency care.
In the wild
Illustrative example: a clinician explains that an intervention changes a five-year event rate from two in 100 to one in 100. Instead of saying only that risk falls by 50%, the clinician states the one-percentage-point absolute reduction, explains that 100 people would be treated for one event to be prevented, and then reviews side effects and alternatives.
→ The patient can compare the likely benefit with harms and personal preferences using understandable numbers.
Common mistakes
Repeating only the relative reduction
A large relative percentage can hide a small absolute change when the baseline event is uncommon.
Treating funding as a verdict
Funding and conflicts should increase scrutiny, but they do not replace appraisal of methods and results.
Ignoring the patient's context
Population averages may not describe an individual's age, risk factors, goals, or tolerance for side effects.
Is it for you?
Best for
It is best for patients and clinicians discussing preventive treatments with modest or uncertain benefits.
Not ideal for
It is not a substitute for urgent treatment when delay itself creates serious risk.
From the transcript
“So you've reduced the heart attack risk by 50%.”
“But you've only prevented one heart attack.”
“patients want that they want more information in a way that they can understand”
From the episode
The Doctor That Got Banned For Speaking Out: “We've Been Lied To About Medication & COVID!”, “After 2021 Heart Attacks Increased 25%!” Dr Aseem Malhotra