Which of the following statements regarding epidemiology is NOT true?
-Epidemiologic studies focus on the distribution and determinants of health related states or events.
-Epidemiology is, in part, a set of methodological tools that allow us to measure and understand what makes people un-healt...
PH X186 Quiz 1 || with 100% Accurate Solutions.
Which of the following statements regarding epidemiology is NOT true?
-Epidemiologic studies focus on the distribution and determinants of health related states or
events.
-Epidemiology is, in part, a set of methodological tools that allow us to measure and understand
what makes people un-healthy and, ultimately, how to improve their health.
-Epidemiology focuses on individual health as opposed to population health.
-Epidemiology serves as the base science for public health.
-All of these statements are true. correct answers Epidemiology focuses on individual health as
opposed to population health.
The two major categories of epidemiology are: correct answers Descriptive and analytic
The occurrence of disease and disease determinants are described in the context of:
-People/population
-Time
-Place
-All of these correct answers All of these (people/population, time, and place)
True or false? In epidemiology, it's quite common to find a single exposure that causes disease
100% of the time. correct answers False: it's actually incredibly rare.
Malaria is primarily distributed in what geographic region(s)? correct answers In a band roughly
along the equator
Definition of Endemic correct answers A more or less constant occurrence rate of a disease
within a specific population
Definition of Epidemic correct answers A higher than expected occurrence of a disease within a
specific population
Definition of Pandemic correct answers A spread of disease at an epidemic level/rate on a much
larger geographic scale
True or false? Disease distribution is always based on geography. correct answers False
(often temporal or based in time; distribution deals with person, place, and time)
What organism/agent transmits the malaria parasite amongst human populations? correct
answers Anopheles mosquitos
Which of the following options is NOT a stage in the natural history of disease?
-Stage of Subclinical Disease
-Stage of Infectious Transmission
, -Stage of Clinical Disease
-Stage of Susceptibility
-Stage of Recovery, Disability or Death
-These are all stages in the natural history of disease correct answers Stage of Infectious
Transmission
True or false? The sample population is smaller than the target population. correct answers True
How would you describe a population where membership is permanent and people cannot enter
and leave as they please? correct answers Fixed
Which of the following are fractions?
Ratios
Proportions
Rates correct answers All of these options are fractions
Which fraction below most requires time in order to calculate it?
Ratio
Proportion
Rate correct answers Rate
For which measure of disease is this true: The numerator of the fraction is the number of new
cases of disease over a certain period of time, and the denominator is the entire population/group
from which these cases came from. correct answers Prevalence
Identify which two variables are used in a 2x2 table. Select all that apply correct answers Disease
Status, Exposure
True or false? When we state there is an "age effect" when we describe a disease, it means that as
age increases, the rate of disease in the population changes as well.
True correct answers True
Why are "Relative Risks" called "Relative?" correct answers Because by dividing the
numerator's risk/rate/etc. by the denominator's risk/rate/etc., you are comparing how severe the
disease is in the numerator group relative/in comparison to the denominator group.
True or false? The exposure odds ratio is equal to the disease odds ratio. correct answers True
Why do we subtract the unexposed population's risk from the exposed population's risk when we
calculate the attributable risk? correct answers Because the unexposed population's level of risk
is the background/expected disease rate and the exposed population's risk represents the
background risk + the risk of exposure.
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