Epi Final Questions With Complete Solutions
A case-control study is an experimental study design.
a. True
b. False Correct Answers b. False
A epidemic curve can be used to describe which of the
following characteristics of health-related states and events?
a. Time
b. Place
c. Person
d. B and C Correct Answers a. Time
A new preoperative bathing product is studied to see if it is
associated with a reduction in surgical site infections in
hospitalized older adults. The relative risk of a surgical site
infection was 0.91 [95% CI: 0.81, 1.01] in the intervention
group. This risk statistic means that
a. There is a reduced risk of infection in the intervention group.
b. There is not a difference between the risk of infection
between the groups.
c. There is a statistically significant difference between the
groups.
d. There's an increased risk of infection in the intervention
group. Correct Answers b. There is not a difference between
the risk of infection between the groups.
A proportion is a simple count of the number of people in the
population with a disease or health-related condition.
a. True
b. False Correct Answers b. False
,A prospective cohort study examines sodium intake and the
subsequent development of hypertension. The relative risk of
hypertension in people with high sodium diets is 1.6 [CI: 1.1-
2.1]. The researcher concludes
a. There is a significantly decreased risk of hypertension in
people with high sodium diets.
b. There is a significantly increased risk of hypertension in
people with high sodium diets.
c. There is an increased risk of hypertension in people who
consume a high sodium diet but the risk is not statistically
significant.
d. The risk of hypertension cannot be determined with the
information provided. Correct Answers b. There is a
significantly increased risk of hypertension in people with high
sodium diets.
A prospective cohort study of the effect of mother's milk feeding
of premature infants in the Neonatal Intensive Care Unit finds
that the risk ratio for developing sepsis during the infant's
hospital course was 0.82 [95% CI: 0.75, 0.89] for infants who
received their own mother's milk compared to infants who
received infant formula. This finding indicates that
a. Mother's milk feeding increases the risk of sepsis.
b. Mother's milk feeding has no impact on sepsis.
c. Mother's milk feeding decreases the risk of sepsis.
d. The impact of mother's milk feeding cannot be determined
from this type of study. Correct Answers c. Mother's milk
feeding decreases the risk of sepsis.
A ratio always includes a measure of time.
, a. True
b. False Correct Answers b. false
A risk factor is a behavior or exposure that causes a disease or
injury.
a. True
b. False Correct Answers b. False
A risk factor is an event or characteristic that is associated with a
disease, but is not necessarily a cause of the disease.
a. True
b. False Correct Answers a. True
Adjusted rates are used to control for the effects of variables
such as age on a health outcome.
a. True
b. False Correct Answers a. True
All births in the United States must be legally registered in the
jurisdiction, state, or territory in which the birth occurred.
a. True
b. False Correct Answers a. True
All deaths in the United States must be legally registered in the
jurisdiction, state, or territory in which the death occurred.
a. True
b. False Correct Answers a. True
Although health care facilities are required to report occurrences
of notifiable diseases, individual care providers are not required
to participate in reporting of notifiable diseases.
A case-control study is an experimental study design.
a. True
b. False Correct Answers b. False
A epidemic curve can be used to describe which of the
following characteristics of health-related states and events?
a. Time
b. Place
c. Person
d. B and C Correct Answers a. Time
A new preoperative bathing product is studied to see if it is
associated with a reduction in surgical site infections in
hospitalized older adults. The relative risk of a surgical site
infection was 0.91 [95% CI: 0.81, 1.01] in the intervention
group. This risk statistic means that
a. There is a reduced risk of infection in the intervention group.
b. There is not a difference between the risk of infection
between the groups.
c. There is a statistically significant difference between the
groups.
d. There's an increased risk of infection in the intervention
group. Correct Answers b. There is not a difference between
the risk of infection between the groups.
A proportion is a simple count of the number of people in the
population with a disease or health-related condition.
a. True
b. False Correct Answers b. False
,A prospective cohort study examines sodium intake and the
subsequent development of hypertension. The relative risk of
hypertension in people with high sodium diets is 1.6 [CI: 1.1-
2.1]. The researcher concludes
a. There is a significantly decreased risk of hypertension in
people with high sodium diets.
b. There is a significantly increased risk of hypertension in
people with high sodium diets.
c. There is an increased risk of hypertension in people who
consume a high sodium diet but the risk is not statistically
significant.
d. The risk of hypertension cannot be determined with the
information provided. Correct Answers b. There is a
significantly increased risk of hypertension in people with high
sodium diets.
A prospective cohort study of the effect of mother's milk feeding
of premature infants in the Neonatal Intensive Care Unit finds
that the risk ratio for developing sepsis during the infant's
hospital course was 0.82 [95% CI: 0.75, 0.89] for infants who
received their own mother's milk compared to infants who
received infant formula. This finding indicates that
a. Mother's milk feeding increases the risk of sepsis.
b. Mother's milk feeding has no impact on sepsis.
c. Mother's milk feeding decreases the risk of sepsis.
d. The impact of mother's milk feeding cannot be determined
from this type of study. Correct Answers c. Mother's milk
feeding decreases the risk of sepsis.
A ratio always includes a measure of time.
, a. True
b. False Correct Answers b. false
A risk factor is a behavior or exposure that causes a disease or
injury.
a. True
b. False Correct Answers b. False
A risk factor is an event or characteristic that is associated with a
disease, but is not necessarily a cause of the disease.
a. True
b. False Correct Answers a. True
Adjusted rates are used to control for the effects of variables
such as age on a health outcome.
a. True
b. False Correct Answers a. True
All births in the United States must be legally registered in the
jurisdiction, state, or territory in which the birth occurred.
a. True
b. False Correct Answers a. True
All deaths in the United States must be legally registered in the
jurisdiction, state, or territory in which the death occurred.
a. True
b. False Correct Answers a. True
Although health care facilities are required to report occurrences
of notifiable diseases, individual care providers are not required
to participate in reporting of notifiable diseases.
