correlational
Analysis v1

In South Korea, more people are being told they have thyroid cancer than before, but not fewer people are dying from it — which means many of those new diagnoses might be for cancers that wouldn’t have hurt them anyway.

Evidence from Studies

Supporting (1)

0

Community contributions welcome

Doctors in South Korea started checking for thyroid cancer too much with ultrasounds, finding lots of tiny tumors that wouldn’t hurt anyone. When they stopped screening so much, fewer people had surgery — but no more people died from thyroid cancer. That means most of those extra diagnoses weren’t dangerous.

Contradicting (0)

0

Community contributions welcome

No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.