Screening for colon cancer (fecal occult-blood testing), either every year or every other year, did NOT reduce the total risk of death after a 30 year followup according to a recent analysis of the Minnesota Colon Cancer Control Study.
The percentage of people who had died from any cause after a 30-year follow-up was exactly the same in each group (71% of people had died in each group).
Prof. H. Gilbert Welch, MD writes about this in his most recent book Less Medicine, More Health: 7 Assumptions That Drive Too Much Medical Care.
He is also the author of the wonderful book Overdiagnosed: Making People Sick In Pursuit Of Health which is about the same topic as this book, the topic of over-diagnosis and over-treatment which does NOT help people live longer.
The reason that I feel passionately about this is because my mother suffered tragically from drug-induced side effects which her doctors were blind to.
It is along the same lines as Prof. Welch’s books which look at the effects of of over-diagnosis and over-treatment.
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