NURSING > QUESTIONS & ANSWERS > NR 503 WK 3 Relative Risk Calculation Worksheet (All)

NR 503 WK 3 Relative Risk Calculation Worksheet

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Prior to completing this worksheet, review the lessons, reading and course text up to this point. Also review the tables of calculations. Each question is worth five (5) points. There is only one right answer for each of the ten problems. 1. The population in the city of Springfield, Missouri in March, 2014 was 200,000. The number of new cases of HIV was 28 between January 1 and June 30th 2014. The number of current HIV cases was 130 between January 1 and June 30th 2014. The incidence rate of HIV cases for this 6 month period was: A. 7 per 100,000 population B. 14 per 100,000 population C. 28 per 100,000 population D. 85 per 100,000 population 2. The prevalence rate of HIV cases in Springfield, Missouri as of June 30, 2014 was: A. 14 per 100,000 population B. 28 per 100,000 population C. 79 per 100,000 population D. 130 per 100,000 population 3. In a North African country with a population of 5 million people, 50,000 deaths occurred during 2014. These deaths included 5,000 people from malaria out of 10,000 persons who had Malaria. What was the total Annual Mortality Rate for 2014 for this country? (please show your work) 50,000 x 1000 = 20 2,500,000 The total Annual Mortality Rate for 2014 is 20 4. What was the cause-specific mortality rate from malaria? (please show your work) 5,000 x 1000 = 2 2,500,000 The cause-specific mortality rate from malaria is 2 5. What was the case-fatality percent from malaria? 5,000 x 100 = 50 10,000 The case-fatality percent from malaria is 50 6. Fill in and total the 4 X 4 table for the following disease parameters: Total number of people with lung cancer in a given population = 120 Total number of people with lung cancer who smoked = 90 Total number of people with lung cancer who did not smoke = 30 Total number of people who smoked = 150 Total number of people in the population = 350 Fill in the missing parameters based on the above. YES LUNG CANCER NO LUNG CANCER TOTALS YES SMOKING 90 60 150 NO SMOKING 30 170 200 TOTALS 120 230 350 7. From Question 6, what is the total number of people with no lung cancer? The total number of people with no lung cancer is 230 8. From question 6, what is the total number of people who smoked, but did not have lung cancer? The total number of people who smoked but did not have lung cancer is 60 9. Set up the problem for relative risk based on the table in #6. 90/150 30/200 10. Calculate the relative risk. 90/150 = 0.6 = 4 30/200 0.15

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