Follow your curiosity

What discovery has been shared with you?

FACTREE gives you something interesting to discover every day — and something worth talking about together.

Start with one fact. Explore it, go deeper, then follow whichever branch catches your imagination.

Choose subjects for a surprise

Exploring any topic

Begin your discovery

Your next discovery is one click away.

Choose one or more subjects above, or leave Any Topic selected and let curiosity decide.

Medicine

Cost-effectiveness of Lung Cancer Screening with Low-Dose CT

Quick fact

Modeling studies have shown that screening long-term smokers with low-dose CT costs about $81,000 per quality-adjusted life year gained, which is right at the common US willingness-to-pay threshold of $100,000–$150,000, making it borderline cost-effective for high-risk groups.

Why this is interesting

Lung cancer is the leading cause of cancer death, but not every CT scan is worth the money. How do we decide whether screening is actually cost-effective?