2-2 Quiz: Additional Epidemiological Principles and Answers
1.
A risk factor is a behavior, environmental exposure, or inherent human characteristic
that is
associated with an important health condition. True
2. One risk factor is typically cause of a disease. False
3. This type of transmission occurs when an agent is transferred or carried by some
intermediate item, organism, means, or process to a susceptible host, resulting in disease.
Indirect Transmission
4. An object such as a piece of clothing, a door handle, or a utensil that can harbor an
infectious agent, and is capable of being a means of transmission is Fomite
5. The behavioral risk Factor Surveillance System is an annual survey conducted by the
Centers of Disease Control and Prevention. This data is available by state. According to
BRFSS for a certain state, there were 3,122 respondents with arthritis and 5,259 without. Of
those with arthritis, 1,175 reported fair/poor health and 1,947 reported their health as
excellent/very good.Of those without arthritis, 771 reported their health as fair/poor, and
4,488 reported excellent/very good health.
What is the prevalence of arthritis in this example? Express as a percentage. 3122 /
(3122+5259) x100 = 37.3%
6. The behavioral risk Factor Surveillance System is an annual survey conducted by the
Centers of Disease Control and Prevention. This data is available by state. According to
BRFSS for a certain state, there were 3,122 respondents with arthritis and 5,259 without. Of
those with arthritis, 1,175 reported fair/poor health and 1,947 reported their health as
excellent/very good. Of those without arthritis, 771 reported their health as fair/poor, and
4,488 reported excellent/very good health.
What is the prevalence fair or poor health among those with arthritis? 1175/3122 x 100 = 37.6
7. The behavioral risk Factor Surveillance System is an annual survey conducted by the
Centers of Disease Control and Prevention. This data is available by state. According to
BRFSS for a certain state, there were 3,122 respondents with arthritis and 5,259 without. Of
those with arthritis, 1,175 reported fair/poor health and 1,947 reported their health as
excellent/very good. Of those without arthritis, 771 reported their health as fair/poor, and
4,488 reported excellent/very good health.
What is the prevalence of fair/poor health among those without arthritis? 771/5259 x100
=14.6
8. The behavioral risk Factor Surveillance System is an annual survey conducted by the
Centers of Disease Control and Prevention. This data is available by state. According to
BRFSS for a certain state, there were 3,122 respondents with arthritis and 5,259 without. Of
those with arthritis, 1,175 reported fair/poor health and 1,947 reported their health as
excellent/very good. Of those without arthritis, 771 reported their health as fair/poor, and
4,488 reported excellent/very good health.
What does this information tell you about arthritis and health status? Both A and B
9. If disease duration is long, prevalence is usually higher than incidence. True
10. If disease duration is short, prevalence and incidence are approximately the same. False
11. The geometric mean may be more than or equal t