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Old 06-14-2012
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Stats Screening test in cancer epidemiology.

An epidemiologic study analyzes health care benefits of cancer screening techniques applied to a population. Which of the following diagnostic screening techniques used in health care is most likely to have had the greatest impact on reduction in cancer deaths in developed nations?
(A) Chest radiograph
(B) Stool guaiac
(C) Pap smear
(D) Serum carcinoembryonic antigen assay
(E) Urinalysis
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Old 06-14-2012
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(A) Chest radiograph

Question is asking what can be used for "reduction in cancer deaths in developed nations" - Lung cancer is the leading cause of cancer related deaths.
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^but finding it on X-ray wouldn't lead to a decrease in death because cancer has already developed and the mortality for lung cancer is the highest

I'd def go with with C pap smear
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Default my answer

Quote:
Originally Posted by anomali View Post
An epidemiologic study analyzes health care benefits of cancer screening techniques applied to a population. Which of the following diagnostic screening techniques used in health care is most likely to have had the greatest impact on reduction in cancer deaths in developed nations?
(A) Chest radiograph
(B) Stool guaiac
(C) Pap smear
(D) Serum carcinoembryonic antigen assay
(E) Urinalysis
C) Pap smear
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Old 06-14-2012
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Quote:
Originally Posted by DefeatTheBeast View Post
^but finding it on X-ray wouldn't lead to a decrease in death because cancer has already developed and the mortality for lung cancer is the highest

I'd def go with with C pap smear
Ah that's true. I also thought that the question was asking "most likely to have the greatest impact" rather than "most like to have HAD.." Then the answer would be Pap Smear for sure. They talked about it in Kaplan and DIT about reductions in cancer due to Pap Smears.
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Old 06-14-2012
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guys can chest x-ray be a screening test in terms of lung cancer? I don't think so...I was always taught that its sensitivity is too low...hence it can NOT be used as a screening test...
I thought it's just in my country so I checked and here's what I got:

Clinical practice guidelines issued by the American College of Chest Physicians in 2007 recommended against routine screening for lung cancer because of a lack of evidence that such screening was effective.

Source: http://en.wikipedia.org/wiki/Lung_cancer_screening
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Old 06-14-2012
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FA- reproductive system:

Gynecologic tumor epidemiology in USA- Incidence:
Cervical cancer is the lowest in the US (developed nation), eventhough it is highest in the world.


Due to extensive screening programs (pap smears).
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Quote:
Originally Posted by Casandra View Post
guys can chest x-ray be a screening test in terms of lung cancer? I don't think so...I was always taught that its sensitivity is too low...hence it can NOT be used as a screening test...
I thought it's just in my country so I checked and here's what I got:

Clinical practice guidelines issued by the American College of Chest Physicians in 2007 recommended against routine screening for lung cancer because of a lack of evidence that such screening was effective.

Source: http://en.wikipedia.org/wiki/Lung_cancer_screening
No it can't....and thats why lung cancer has the worst prognosis because we can't catch it until its too late (pathoma delves into this very nicely)....its funny though because lung cancer has the biggest identifiable risk in smoking yet people continue to smoke
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Quote:
Originally Posted by DefeatTheBeast View Post
No it can't....and thats why lung cancer has the worst prognosis because we can't catch it until its too late (pathoma delves into this very nicely)....its funny though because lung cancer has the biggest identifiable risk in smoking yet people continue to smoke

that's what I thought - thanks for reassurement

Last edited by Casandra; 06-14-2012 at 09:19 AM.
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Old 06-15-2012
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Pap smear is the right option
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Biostatistics-Epidemiology, Preventive-Medicine-, Step-1-Questions, US-Healthcare-

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