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WorksheetsTools of epidemiology
Total questions: 12
Worksheet time: 9mins
For the fraction shown, indicate whether it is a ratio, a proportion, a rate, or none of the three-
rate
ratio
proportion
none of the above
For the fraction shown, indicate whether it is a ratio, a proportion, a rate, or none of the three-
rate
ratio
proportion
none of the above
For the fraction shown, indicate whether it is a ratio, a proportion, a rate, or none of the three-
rate
ratio
proportion
none of the above
For the fraction shown, indicate whether it is a ratio, a proportion, a rate, or none of the three-
rate
ratio
proportion
none of the above
For the fraction shown, indicate whether it is a ratio, a proportion, a rate, or none of the three-
rate
ratio
proportion
none of the above
Between 1971 and 1975, as part of the National Health Survey, 7,381 persons ages 40–77 years were enrolled in a follow-up study. At the time of enrollment, each study participant was classified as having or not having diabetes. During 1982–1984, enrollees were documented either to have died or were still alive. The results are summarized in the figure.
Calculate the ratio of non-diabetic men to diabetic men.
33.4:1
8.2:1
24.9:1
16.7:1
A city of 4,000,000 persons has 500 clinics. Calculate the ratio of clinics per 10,000 persons.
0.125 clinics per 10,000 persons
1.25 clinics per 10,000 persons
12.5 clinics per 10,000 persons
2 clinics per 10,000 persons
city A’s infant mortality rate in 2001 was 10.7 per 1,000 live births.2 city B’s infant mortality rate in 2001 was 3.8 per 1,000 live births. Calculate the ratio of the infant mortality rate in city A to that in city B.
city A’s infant mortality rate was 2.8 times as high as city B’s infant mortality rate in 2001.
city B’s infant mortality rate was 2.8 times as high as city A’s infant mortality rate in 2001.
city A’s infant mortality rate was 6.9 times as high as city B’s infant mortality rate in 2001.
city B’s infant mortality rate was 6.9 times as high as city A’s infant mortality rate in 2001.
Calculate the proportion of men in the follow-up study shown in figure, who were diabetics.
5.31%
5.66%
5.98%
2.56%
Calculate the proportion of deaths among men.
45.25%
27%
61%
12.33
In 2003, 44,232 new cases of acquired immunodeficiency syndrome (AIDS) were reported in the United States. The estimated mid-year population of the U.S. in 2003 was approximately 290,809,777.6 Calculate the incidence rate of AIDS in 2003.
15.21 new cases of AIDS per 100,000 population
16.21 new cases of AIDS per 100,000 population
30.42 new cases of AIDS per 100,000 population
32.42 new cases of AIDS per 100,000 population
In a survey of 1,150 women who gave birth in City A in 2000, a total of 468 reported taking a multivitamin at least 4 times a week during the month before becoming pregnant. Calculate the prevalence of frequent multivitamin use in this group.
20.4%
61%
40.7%
81.3%
