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health officials are strongly reaffirming their recommendation that people over
50 undergo routine screening for colorectal cancer.
In a report being published today in The Annals of Internal Medicine, the
United States Preventive Services Task Force, a medical advisory group that
helps set government policy, said doctors should continue performing the tests.
The task force found that they were not only valuable in reducing deaths from
colorectal cancer but also cost-effective.
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But health officials took no position on which of several screening methods
should be used, or which combination of them. They also did not say at what age
the tests might no longer make sense.
The tests include colonoscopy, in which the entire large intestine is viewed
using a fiber-optic tube inserted in the anus, and sigmoidoscopy, in which only
the lower portion of the intestine is examined. Doctors also screen for cancer
by looking for blood in stool samples. The frequency of screening depends on the
method used.
The recommendations were based on two studies, also published in the medical
journal, that examined the effectiveness of screening. The lead author of both
studies was Dr. Michael Pignone of the University of North Carolina.
"The consistent finding that any form of screening is superior to no
screening," the researchers wrote, "supports the general conclusion that any of
the commonly considered strategies are reasonable alternatives."
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"A foolish faith in authority is the worst enemy of truth."
-- Albert Einstein, letter to a friend, 1901
"I know of no safe depository of the ultimate powers of the society but the people themselves, and if we think them not enlightened enough to exercise control with a wholesome discretion, the remedy is not to take it from them, but to inform their discretion by education."
-- Thomas Jefferson, letter to William C. Jarvis, September 28, 1820
"What's the point of vaccination if it doesn't protect you from the unvaccinated?"
-- Sandy Gottstein
"Who gets to decide what the greater good is and how many will be sacrificed to it?"