How to read the evidence
The numbers in the timelines are easier to read once you know what they measure. Each page has an interactive example; the examples use synthetic numbers and say so. These are teaching aids, not medical advice.
- 1
Censoring, the median and landmark rates, with a curve you can change.
- 2
Move the hazard ratio and watch two curves separate.
- 3
Overall survival, progression-free survival and surrogate endpoints
Which events end the clock for each endpoint, and why a surrogate is not the same as the outcome that matters.
- 4
Trial phases, randomization, crossover and accelerated approval
How evidence is built in phases, why crossover complicates survival comparisons, and what accelerated approval means.
Looking for an abbreviation? See the glossary.