Thursday evening January 12 th 5:30 pm, your office at the City Department of He

Question

Thursday evening January 12th 5:30 pm, your office at the City Department of Health (DOH). There is a potential outbreak in the City, you have been handed a folder with everything in it including interviews with the sick people and family members of the deceased.

NOTE:ALL NUMBERS AND DESCRIPTIONS ARE FICTITIOUS.

You are given the following information:

A. Number of cases and deaths of NYC-001 by borough (Sept 21-Oct 13 1999)

What is the proportionate mortality ratio (PMR) for Borough D?

0.25%

0.50%

16.9%

None of the above

# of cases of NYC-001 # of deaths from NYC-001 Total death –all causes Borough A 120 15 1000 Borough B 140 13 800 Borough C 80 10 2000 Borough D 59 10 4000 Borough E 215 90 3000 TOTAL 614 138 10800

Explanation / Answer

Proportional mortality ratio (PMR) -- Number of deaths within a population due to a specific disease or cause divided by the total number of deaths in the population during a time period such as a year.

So, nos of deaths from NYC-001 is 10

But total deaths from all causes from NYC 001 is 4000

PMR =10/4000 = 1/400 or .25%

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