Part 3 · Weighing the Evidence
Same concept, other depth: Clinical Reasoning →
Dear Doctor, shall we discuss & understand?
Sweet, clear and patient — like a friend who really wants you to get it. I believe in you — let's grow step by step.
Voice chat works best in Chrome or Edge — you can also read, listen and type below.
Imagine two identical women whose cancer will kill them at age 70. One is screened and diagnosed at 60; the other is diagnosed from symptoms at 66. The screened woman "survives" 10 years after diagnosis; the other only 4. Screening looks like a miracle. But both die at 70. Screening just started the clock earlier. That is lead‑time bias.
Loading the rest of this concept…
Talk it through with Dr. Amy
Dear Doctor, I'll teach a little, then listen to you — slowly, warmly, and at your pace.
Finished this one?
No test, no score — just a tick for you, kept on your own device.
Connected to this topic
Educational only — not a substitute for clinical judgement, supervision, or local guidelines.