Description

This episode examines the principles and paradoxes behind disease screening programs. I discuss the technical aspects of effective screening tests, the statistical concepts of false positives and overdiagnosis, and how improvement in treatment affects screening tests. Through examples from cancer screening to chronic disease detection, the discussion covers the interplay between screening accuracy, population health outcomes, and healthcare system dynamics, while exploring how economic factors influence screening implementation and guidelines.

Chapter Markers

- 00:00 - Intro

- 00:55 - Purpose & Principles of Screening

- 01:33 - What makes a good screening test?

- 03:52 - Role of Disease Definition in Screening

- 06:57 - Statistical techniques to lie about screening benefits

- 07:40 - Overdiagnosis Bias

- 08:38 - Lead Time Bias

- 09:12 - Length Time Bias

- 09:59 - The Paradox of Treatment & Screening

- 11:16 - The Pound of Profits

- 13:54 - Outro

Link to Written Article: https://www.pcplens.com/p/false-positives-real-profits

Link to Video: https://www.pcplens.com/p/podcast-false-positives-real-profits

Link to YouTube: https://www.youtube.com/@PCPLens?sub_confirmation=1

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