Epidemiology 2 New Exam With Questions And Answers
The nature of the data controls the types of statistical analyses and inferences that are
possible. - ANSWER True
Epidemiologic vs. clinical descriptions of disease can differ - ANSWER True
Rates are not, but proportions and percentages are ratios - ANSWER False, they are all
ratios
This is a comparable calculation to an incidence rate but usually for a shorter time
period of time, such as the time of an outbreak investigation
a. Incidence density
b. Attack rate
c. Secondary attack rate to incidence d. Prevalence - ANSWER B. Attack rate
When duration of a disease becomes short and incidence is high, prevalence becomes
similar to incidence - ANSWER True
For a chronic disease of high incidence and long duration, prevalence of the disease
increases relative to incidence - ANSWER False
The incidence rate of a disease is defined as the number of new cases of the disease
over a time period divided by the total population (at risk) during the same time period
times a multiplier (e.g. 100,000) - ANSWER True
If your population of 230,109 had 502
deaths in a year, what is the crude mortality
rate? - ANSWER (502/230,109) x 100,000 = 218.2/100,000
, If your expected number of deaths
(based on standard population) was 988,
what is your Standardized Mortality Ratio? - ANSWER 502/988 x 100 = 51%
how is this interpreted?
Mortality in your population is lower than expected when compared with the standard
population.
Controlled assignment --> experimental study --> non randomized assignment
(quasi-experimental) - ANSWER community trials
Controlled assignment --> experimental study --> randomized assignment - ANSWER
clinical trials
Uncontrolled assignment (non randomized)--> observational studies-->sampling
w/regard to disease or effect - ANSWER cross sectional and/or retrospective studies
Uncontrolled assignment (non randomized)--> observational studies-->time span
studies/ sampling with regard to exposure, characteristic, or cause - ANSWER
prospective studies
Uncontrolled assignment (non randomized) --> observational studies --> sampling w/
regard to disease or effect --> exposure or characteristic at time of study - ANSWER
cross sectional studies
ecologic studies
Uncontrolled assignment (non randomized) --> observational studies --> sampling w/
regard to disease or effect --> history of exposure or characteristic (prior to time of
study) - ANSWER retrospective studies
The nature of the data controls the types of statistical analyses and inferences that are
possible. - ANSWER True
Epidemiologic vs. clinical descriptions of disease can differ - ANSWER True
Rates are not, but proportions and percentages are ratios - ANSWER False, they are all
ratios
This is a comparable calculation to an incidence rate but usually for a shorter time
period of time, such as the time of an outbreak investigation
a. Incidence density
b. Attack rate
c. Secondary attack rate to incidence d. Prevalence - ANSWER B. Attack rate
When duration of a disease becomes short and incidence is high, prevalence becomes
similar to incidence - ANSWER True
For a chronic disease of high incidence and long duration, prevalence of the disease
increases relative to incidence - ANSWER False
The incidence rate of a disease is defined as the number of new cases of the disease
over a time period divided by the total population (at risk) during the same time period
times a multiplier (e.g. 100,000) - ANSWER True
If your population of 230,109 had 502
deaths in a year, what is the crude mortality
rate? - ANSWER (502/230,109) x 100,000 = 218.2/100,000
, If your expected number of deaths
(based on standard population) was 988,
what is your Standardized Mortality Ratio? - ANSWER 502/988 x 100 = 51%
how is this interpreted?
Mortality in your population is lower than expected when compared with the standard
population.
Controlled assignment --> experimental study --> non randomized assignment
(quasi-experimental) - ANSWER community trials
Controlled assignment --> experimental study --> randomized assignment - ANSWER
clinical trials
Uncontrolled assignment (non randomized)--> observational studies-->sampling
w/regard to disease or effect - ANSWER cross sectional and/or retrospective studies
Uncontrolled assignment (non randomized)--> observational studies-->time span
studies/ sampling with regard to exposure, characteristic, or cause - ANSWER
prospective studies
Uncontrolled assignment (non randomized) --> observational studies --> sampling w/
regard to disease or effect --> exposure or characteristic at time of study - ANSWER
cross sectional studies
ecologic studies
Uncontrolled assignment (non randomized) --> observational studies --> sampling w/
regard to disease or effect --> history of exposure or characteristic (prior to time of
study) - ANSWER retrospective studies
