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Kaplan Qbank USMLE



Author14 Posts
  #1

17. In a cohort study, 10,000 men who consume alcohol were compared with

10,000 men who do not consume alcohol. The results show that men who

consume alcohol have an increased risk for cancer of the bladder that is

statistically significant at the 5% level. Which of the following is the most

appropriate interpretation of this result?
A. At least 5% of the bladder cancers can be attributed to consumption of

alcohol
B. At least 5% of consumers of alcohol will develop cancer of the bladder
C. Such an effect would occur by chance in less than 5% of repeated samples of

this size
D. There is at least a 5% increased risk for bladder cancer among consumers of

alcohol
E. Men who drink alcohol are 5 times more likely to develop bladder cancer

than those who do not drink alcohol


  #2

d?


  #3

NO I found the answer its C

  #4

its C

  #5

dear enthu,

plz mention the explaination wt ur ans,will be helpful

thanks


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  #6

I will go with C. D uses "at least". I think it should be changed to "at most". Correct me if I'm wrong.

  #7

the answer is C, because "P is short for probability: the probability of getting something more extreme than your result, when there is no effect in the population. Bizarre! And what's this got to do with statistical significance?" --- it means that there is less than a 5 percent chance you could have gotten those results by chance if that makes any sense.

  #8

C

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  #9

C
KEY WORD: by chance


  #10

its a cohort (prospective) study. so its B.

  #11

wats the correct ans????

  #12

I think the answer is ..
C. Such an effect would occur by chance in less than 5% of repeated samples of
this size


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JSK .. O Lord !! Increase my capacity to Absorb knowledge ..

  #13

c

  #14

C

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