An epidemiologic survey of Motor Vehicle Accidents (MVA) in Metroville, a city w

Question

An epidemiologic survey of Motor Vehicle Accidents (MVA) in Metroville, a city with a population of 100,000 (during the midpoint of the year), produced the following data for a particular year: Number of drivers in Metroville during any given month Total number of residents injured from MVA Total number of deaths from MVA Total number of deaths from all causes 12,000 ,800 90 900 The crude death rate for all causes was: O90/600 x 100,000 O90/900 x 100,000 O 90/1,800x 100,000 900/100,000 x 100,000

Explanation / Answer

Crude Death Rate=[Number of deaths(from all causes) in the population of the given region during the given period/total population of the given region during the given period]*100,000.

100,000 is the multiplier here. (According to the choices)

Hence, Total population=100,000.

Number of deaths from all causes in the population=900

Hence crude death rate for all causes=900/100,000*100,000.(Ans)

We know,

Cause specific mortality rate=(Number of deaths from a specific cause during a specified time interval/Total population at the midpoint of the time interval) *100,000

Here,

Cause specific mortality rate dueto use of motor vehicles will be: - 90/100,000*100,000(Ans)

We know,

Proportion mortality ratio(in percentage)=(Number of deaths dueto a specific cause or disease within a population/Total number of deaths in the population during a time period such as a year)*100.

Here,

Proportion mortality ratio dueto motor vehicles (in percentage)=90/900*100(Ans).

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