An epidemiologic survey of roller-skating injuries in Metroville, a city with a
ID: 3010903 • Letter: A
Question
An epidemiologic survey of roller-skating injuries 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 skaters in Metroville during any given month 12,000
Roller-skating injuries in Metroville 600
Total number of residents injured from roller-skating 1,800
Total number of deaths from roller-skating 90
Total number of deaths from all causes 900
The proportional mortality ratio (%) due to roller-skating was:
90/600 × 100
90/100,000 × 100
90/1,800 × 100
90/900 × 100
90/600 × 100
90/100,000 × 100
90/1,800 × 100
90/900 × 100
Explanation / Answer
How is defined, the proportional mortality rate:
Statistical method of relating the number of deaths from a particular condition to all deaths within the same populationgroup for the same period.a statistical method of relating the number of deaths from a particular condition to all deaths within the same populationgroup for the same period.
The proportional mortality ratio due to roller -skating was:
= Number of deaths from roller skating / total number of deatha due to any casuses in Mertroville
= 90/900 *100 = 10%
That' option number D