Biostatistics #8 - Type of study 2 - USMLE Forums
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  #1  
Old 06-03-2011
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Stats Biostatistics #8 - Type of study 2

In 1945, there were 1,000 women who worked in a factory painting radium dials on watches. The incidence of bone cancer in these women up to 1975 was compared with that of 1,000 women who worked as telephone operators in 1945. Twenty of the radium dial painters and four of the telephone operators developed bone cancer between 1945 and 1975.

This study is an example of a:

a. cross-sectional study
b. case-control study
c. retrospective cohort study
d. clinical trial
e. prospective cohort study
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  #2  
Old 06-03-2011
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A.Cross sectional study?
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  #3  
Old 06-03-2011
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I think it is a cohort...
C) retrospective cohort???
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Old 06-03-2011
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its C. Retrospective cohort!! :S
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Old 06-03-2011
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C restrospective cohort study?
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  #6  
Old 06-03-2011
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Is it C???
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  #7  
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Correct Answer correct answer

Yes, the answer is c.retrospective cohort study
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  #8  
Old 06-03-2011
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m wrong as usual
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Quote:
Originally Posted by struggle View Post
m wrong as usual
You just need more practice, thatīs all!!!
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  #10  
Old 08-25-2013
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it's C. Cohort study. This type of study compares a group with a given exposure or risk factor to a group without-quote from FA 2012
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  #11  
Old 11-24-2013
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Guys anyone explain how is it retrospective and not prospective.
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Old 11-24-2013
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Why not prospective?????
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  #13  
Old 11-24-2013
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Yeah thats my question too
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