The Claim
To prevent one lung cancer death, 320 high-risk individuals must undergo low-dose computed tomography (LDCT) screening, which results in approximately 1.38 overdiagnosed cases, meaning that for every 100 lung cancer deaths prevented, about 138 individuals are diagnosed and treated for cancers that would not have caused harm.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
If you screen 320 people who are at high risk for lung cancer with a special scan, you might save one life—but you’ll also find and treat about 1.4 cancers that would never have hurt them. So for every 100 lives saved, around 138 people get treated for cancers that didn’t need treatment.
See the scientific wording
To prevent one lung cancer death, 320 high-risk individuals must undergo LDCT screening, but this results in approximately 1.38 overdiagnosed cases, indicating that for every 100 lives saved, about 138 people are diagnosed and treated for cancers that would not have harmed them.
What the research says
1 studyStudy: Overdiagnosis in low-dose computed tomography screening for lung cancer.
This study found that for every 320 high-risk people screened with LDCT scans to save one life from lung cancer, about 1.38 people are diagnosed with a cancer that would never have hurt them — which matches exactly what the claim says.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.