The 'Will Rogers phenomenon' in cancer staging refers to:
- A Stage migration improving apparent stage-specific survival without changing overall survival, due to reclassification by better diagnostic tests ✓
- B The paradox where screening detects pseudo-disease, improving survival statistics without reducing mortality
- C The tendency for stage II cancer survival to deteriorate over time due to hidden micrometastases
- D Improvement in survival because of improved surgical techniques rather than earlier detection
Correct answer: A. Stage migration improving apparent stage-specific survival without changing overall survival, due to reclassification by better diagnostic tests
Explanation
The Will Rogers phenomenon (stage migration) occurs when improved diagnostic technology (e.g., PET-CT, MRI) detects micrometastases, reclassifying patients from lower to higher stages. This improves the apparent survival of BOTH the lower stage (because sicker patients left it) AND the higher stage (because earlier-stage patients entered it), while overall survival is unchanged. Named after Will Rogers' quip about Oklahomans moving to California raising the IQ of both states. This is a source of bias when comparing historical and contemporary trial data.
Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.