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Eight hundred motor vehicle collisions occurred over 2 years in a city with a population of 600,000. 600 of these accidents were alcohol related.During the same period, there were 400 fatalities due to motor vehicle collisions, of which 75% were alcohol related. Which of the following best represents the 1 year incidence of alcohol related motor vehicle fatalities in this community?
A) 150 per 600,000
B) 300 per 600,000
C) 450 per 600,000
D) 600 per 600,000
E) unable to determined from available information
My Answer is A.
Can anyone correct me if I wrong?
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Incidence rate= #of people with illness / #of people at risk
75% of 400 fatalies were alcohol related (300), and people at risk its the population. So, 300/600,000. Answer is B.
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What about the word 1 year incidence?
400 is for 2 years period. Isn't it?
So what I thought is 300 per 600,000. It is for 2 years period.
150 per 600,000. for 1 year.
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I haven't noticed that they asked the 1 year incidence, now I'm confused... I have looked up this Q, but no one have given a good explanation.
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Hi
Could anyone explain what correct answer is?
This question makes me crazy.
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I will choose E,because I dont think it is correct to divide by 2.How can we determine that equal number of fatalities occured in years 1 and 2?
It is just what I think,though
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i think ur ans is correct, because issue is clear 300 for 2 years period, they want for one year,
it should be 150 per same population.
