Health Science.
Health claims reported with study design, absolute risk and the number needed to treat.
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Health coverage is where the gap between a study and a headline is widest. Our job is to keep relative risk, absolute risk, and study design visible — because that is where most health claims quietly collapse.
What this field actually measures
- Relative vs absolute risk
Proportional change versus change in actual incidence.
ReferenceA '50% increase' on a 2-in-10,000 baseline is 1 additional case per 10,000.
LimitHeadlines print the first number. The second one is the one that matters to you.
- Study design hierarchy
Randomised trial, cohort, case-control, observational.
ReferenceObservational nutrition and lifestyle findings routinely fail to replicate in randomised trials.
- Number needed to treat
How many people must receive an intervention for one to benefit.
ReferenceThe most honest single figure in clinical communication, and the least quoted.
Evidence & metrics
The published work behind the numbers above, and the public datasets you can open to check us. If a claim can’t be traced here, we don’t print it.
Citations
Physical Activity Guidelines for Americans, 2nd edition
US Department of Health and Human Services · 2018
Sets the 150–300 minutes weekly moderate-activity target and grades the strength of evidence behind it.
Global Burden of Disease study methodology
Institute for Health Metrics and Evaluation — The Lancet · ongoing
Standardises DALY and mortality estimation across countries, with published uncertainty intervals.
Datasets
US Centers for Disease Control and Prevention · free
Examination and lab measures on a nationally representative sample.
Institute for Health Metrics and Evaluation · free
Cause-specific burden estimates by country, age, and year.
Still open
- How should observational nutrition findings be reported to the public?
- Which consumer health metrics are validated against clinical outcomes?
- What is the real-world benefit of continuous monitoring for healthy adults?
What we won’t say
We will not report a relative risk without the absolute one. That omission is how a rounding error becomes a scare.
- VO-1Evidence before wit
- VO-2Punch at claims, never at people
- VO-3Say the uncertainty out loud
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