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Related Experiment Videos

Screening for disease

W C Black1, H G Welch

  • 1Department of Community and Family Medicine, Dartmouth Medical School, Hanover, NH 03755, USA.

AJR. American Journal of Roentgenology
|January 1, 1997
PubMed
Summary
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Disease screening is growing, but its effectiveness is often overstated. Future efforts should focus on identifying appropriate screening tests, patient populations, and conditions for modest benefits at acceptable costs.

Area of Science:

  • Medical screening
  • Health services research
  • Radiology

Background:

  • Disease screening has significantly expanded over recent decades.
  • The necessity and effectiveness of screening are frequently exaggerated, often due to misapplication of survival statistics.
  • Radiologic screening tests can offer benefits but require careful consideration of context.

Purpose of the Study:

  • To critically evaluate the overstated claims regarding disease screening effectiveness.
  • To identify conditions and populations where screening provides genuine benefits.
  • To guide future research in optimizing screening strategies.

Main Methods:

  • Analysis of survival statistics used in screening effectiveness claims.
  • Review of existing evidence on benefits, harms, and costs of screening.

Related Experiment Videos

  • Exploration of quantitative techniques for patient preference elicitation and cost-benefit analysis.

    • Main Results:

    • The effectiveness of many screening programs is often overstated.
    • Certain radiologic screening tests can offer modest benefits.
    • Cost-effectiveness and patient benefits vary significantly depending on the specific test, population, and conditions.

    Conclusions:

    • There is a need to move beyond generalized claims and focus on evidence-based screening practices.
    • Future screening research should prioritize identifying specific tests and populations that yield appropriate benefits.
    • Quantitative methods are essential for analyzing patient preferences and the long-term benefits, harms, and costs of screening programs.