Musuq
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The prevalence of a disease is half as great in town A than it is in town B, but the incidence of the disease is no different in town A than it is in town B. Which of the following best explains these findings?
A. The case fatality rate is twice as high in town A
B. The duration of the disease is twice as long in town B
C. The number of new cases in town A is twice as many as those in town B
D. People in town A use medical care facilities half as often as those in town B
E. The proportion of asymptomatic cases is twice as much in town B than in town A
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| smal
Forum Guru
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prevelance in town B is 1/2 times more than A.
so B.(not 100% sure though)
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| docswapna
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yes B
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| Allison
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I do not agree, please explain your answer.
I think the correct answer is D.
Town A has twice the prevalence because they have 1/2 the access to medical care facility.
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| allie
Forum Newbie
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prevalence = I*D... so if the incidence is same n prevalence is diff... d diff. should be in duration..
so its B
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| klimt
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agree B
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| robin082006
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B
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| ManuNastai
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| drfax
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Good explanation allie,
B
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| armaan0101
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The duration of disease is longer in A than B and... that is what the option B in the answer list above states....Ans is B.
Moreover the question does not tell us the reason for this difference , it may be some other reason than what is mentioned in option D...
Hope it helps
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| m128
Forum Newbie
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this is a conceptual formula. cannot be used for arithmatic calculation of either the dur or the incidence.
it just shows that prev inc with the inc in incidence
i think the ans is D
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