By using this site, you agree to the Privacy Policy and Terms of Use.
Accept
Health Works CollectiveHealth Works CollectiveHealth Works Collective
  • Health
    • Mental Health
  • Policy and Law
    • Global Healthcare
    • Medical Ethics
  • Medical Innovations
  • News
  • Wellness
  • Tech
Search
© 2023 HealthWorks Collective. All Rights Reserved.
Reading: How to Game Mortality Data
Share
Notification Show More
Font ResizerAa
Health Works CollectiveHealth Works Collective
Font ResizerAa
Search
Follow US
  • About
  • Contact
  • Privacy
© 2023 HealthWorks Collective. All Rights Reserved.
Health Works Collective > Policy & Law > Medical Education > How to Game Mortality Data
Medical Education

How to Game Mortality Data

Marya Zilberberg
Marya Zilberberg
Share
3 Min Read
SHARE

There is a great illustration in this BMJ article of what I discuss in Chapter 2 of my book: the type of mortality that matters. In the figure below from the paper, note that, as the new diagnoses of each of the cancers rise (green lines), the attendant “Deaths” (red lines) stay unchanged.

There is a great illustration in this BMJ article of what I discuss in Chapter 2 of my book: the type of mortality that matters. In the figure below from the paper, note that, as the new diagnoses of each of the cancers rise (green lines), the attendant “Deaths” (red lines) stay unchanged. If you look at the Y-axis of each graph, it tells us that the unit of measurement is “Rate per 100,000 people.” So the red lines represent population mortality.

“Population mortality” means that the denominator for this value is all people in the population who are at risk for the disease in question. This means that for prostate cancer, for example, we include only those men who have a prostate and exclude all women and men who have had a prostatectomy. Population mortality stands in contradistinction to case fatality. The latter is defined as deaths among all the people diagnosed with the disease. So, for prostate cancer, case fatality would be deaths among all men who have been diagnosed with prostate cancer.

More Read

Promoting Health Literacy in India
Role of Patient-Reported Outcomes & Health Economics and Outcomes
Health Tap New Resource for Health Information
Video Calling Shrinks Distance, Time and Cost in Healthcare
As a Physician Do You Have Adequate Financial Expertise?

It is not difficult to see how case fatality is a somewhat circular, even self-referential, measure of our diagnostic prowess, but says very little about how well we are doing with disease treatment. If we have tests that are capable of picking up the most minute of diseases, those that are not likely to cause death in the first place, then the denominator becomes inflated with this noise, while the numerator, the actual fatalities, does not change. This leads of course to an apparent reduction in deaths from the disease, but a reduction that is an artifact of overdiagnosis. Population mortality, on the other hand, cannot be gamed this way, as you can see in the figure above. This is the only mortality that gives us honest feedback without a bias about how we are doing with our early detection and other interventions. In the case of the cancers in the figure, the answer is “not so well.”

TAGGED:medical research
Share This Article
Facebook Copy Link Print
Share

Stay Connected

1.5kFollowersLike
4.5kFollowersFollow
2.8kFollowersPin
136kSubscribersSubscribe

Latest News

a woman walking on the hallway
6 Easy Healthcare Ways to Sit Less and Move More Every Day
Health
September 9, 2025
Clinical Expertise
Healthcare at a Crossroads: Why Leadership Matters More Than Ever
Global Healthcare
September 9, 2025
travel nurse in north carolina
Balancing Speed and Scope: Choosing the Nursing Degree That Fits Your Goals
Nursing
September 1, 2025
intimacy
How to Keep Intimacy Comfortable as You Age
Relationship and Lifestyle Senior Care
September 1, 2025

You Might also Like

How Staffing Agencies are Helping Healthcare Professionals Land their Dream Jobs

February 26, 2016

Competition Entries Show Future of High-Value Care Is Bright

July 24, 2013
Artificial Intelligence

AI Advances Medicine By Finding New Discoveries In Past Research

August 7, 2019

Why Would Anyone Want to become a Physician?

July 21, 2011
Subscribe
Subscribe to our newsletter to get our newest articles instantly!
Follow US
© 2008-2025 HealthWorks Collective. All Rights Reserved.
  • About
  • Contact
  • Privacy
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?